C4graphGraph forms for C4 [ 510, 7 ] = PS(30,17;4)

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On this page are computer-accessible forms for the graph C4[ 510, 7 ] = PS(30,17;4).

(I) Following is a form readable by MAGMA:

g:=Graph<510|{ {17, 18}, {493, 494}, {425, 426}, {221, 222}, {153, 154}, {85, 86}, {289, 290}, {357, 358}, {32, 36}, {475, 479}, {474, 478}, {473, 477}, {442, 446}, {441, 445}, {440, 444}, {408, 412}, {203, 207}, {202, 206}, {201, 205}, {170, 174}, {169, 173}, {168, 172}, {136, 140}, {33, 37}, {34, 38}, {65, 69}, {66, 70}, {67, 71}, {99, 103}, {235, 239}, {272, 276}, {304, 308}, {305, 309}, {306, 310}, {337, 341}, {338, 342}, {339, 343}, {371, 375}, {51, 52}, {459, 460}, {187, 188}, {323, 324}, {68, 72}, {439, 443}, {407, 411}, {406, 410}, {405, 409}, {167, 171}, {135, 139}, {100, 104}, {101, 105}, {102, 106}, {133, 137}, {134, 138}, {340, 344}, {372, 376}, {373, 377}, {374, 378}, {32, 45}, {466, 479}, {464, 477}, {434, 447}, {432, 445}, {402, 415}, {400, 413}, {194, 207}, {192, 205}, {162, 175}, {160, 173}, {34, 47}, {64, 77}, {66, 79}, {96, 109}, {98, 111}, {128, 141}, {130, 143}, {226, 239}, {272, 285}, {304, 317}, {306, 319}, {336, 349}, {338, 351}, {368, 381}, {370, 383}, {33, 46}, {465, 478}, {433, 446}, {401, 414}, {391, 392}, {193, 206}, {161, 174}, {65, 78}, {97, 110}, {119, 120}, {129, 142}, {305, 318}, {337, 350}, {369, 382}, {2, 18}, {493, 509}, {492, 508}, {491, 507}, {490, 506}, {489, 505}, {488, 504}, {487, 503}, {486, 502}, {485, 501}, {484, 500}, {483, 499}, {482, 498}, {481, 497}, {480, 496}, {459, 475}, {458, 474}, {457, 473}, {456, 472}, {455, 471}, {454, 470}, {453, 469}, {452, 468}, {451, 467}, {450, 466}, {449, 465}, {448, 464}, {425, 441}, {424, 440}, {423, 439}, {422, 438}, {421, 437}, {420, 436}, {419, 435}, {418, 434}, {417, 433}, {416, 432}, {391, 407}, {390, 406}, {389, 405}, {388, 404}, {387, 403}, {386, 402}, {385, 401}, {384, 400}, {207, 223}, {206, 222}, {175, 191}, {174, 190}, {173, 189}, {172, 188}, {143, 159}, {142, 158}, {141, 157}, {140, 156}, {139, 155}, {138, 154}, {3, 19}, {4, 20}, {5, 21}, {6, 22}, {7, 23}, {8, 24}, {9, 25}, {10, 26}, {11, 27}, {12, 28}, {13, 29}, {14, 30}, {15, 31}, {36, 52}, {37, 53}, {38, 54}, {39, 55}, {40, 56}, {41, 57}, {42, 58}, {43, 59}, {44, 60}, {45, 61}, {46, 62}, {47, 63}, {70, 86}, {71, 87}, {72, 88}, {73, 89}, {74, 90}, {75, 91}, {76, 92}, {77, 93}, {78, 94}, {79, 95}, {104, 120}, {105, 121}, {106, 122}, {107, 123}, {108, 124}, {109, 125}, {110, 126}, {111, 127}, {288, 304}, {289, 305}, {320, 336}, {321, 337}, {322, 338}, {323, 339}, {352, 368}, {353, 369}, {354, 370}, {355, 371}, {356, 372}, {357, 373}, {1, 19}, {492, 510}, {489, 507}, {488, 506}, {485, 503}, {484, 502}, {481, 499}, {480, 498}, {457, 475}, {456, 474}, {453, 471}, {452, 470}, {449, 467}, {448, 466}, {424, 442}, {421, 439}, {420, 438}, {417, 435}, {416, 434}, {389, 407}, {388, 406}, {385, 403}, {384, 402}, {205, 223}, {173, 191}, {172, 190}, {141, 159}, {140, 158}, {137, 155}, {4, 22}, {5, 23}, {8, 26}, {9, 27}, {12, 30}, {13, 31}, {36, 54}, {37, 55}, {40, 58}, {41, 59}, {44, 62}, {45, 63}, {69, 87}, {72, 90}, {73, 91}, {76, 94}, {77, 95}, {104, 122}, {105, 123}, {108, 126}, {109, 127}, {288, 306}, {320, 338}, {321, 339}, {352, 370}, {353, 371}, {356, 374}, {67, 80}, {431, 444}, {399, 412}, {203, 216}, {199, 212}, {195, 208}, {167, 180}, {163, 176}, {135, 148}, {99, 112}, {131, 144}, {227, 240}, {231, 244}, {235, 248}, {263, 276}, {267, 280}, {271, 284}, {295, 308}, {299, 312}, {303, 316}, {331, 344}, {335, 348}, {363, 376}, {367, 380}, {64, 85}, {430, 443}, {426, 447}, {398, 411}, {396, 409}, {394, 415}, {392, 413}, {224, 245}, {204, 217}, {200, 221}, {198, 211}, {196, 209}, {194, 215}, {192, 213}, {166, 179}, {164, 177}, {162, 183}, {160, 181}, {134, 147}, {68, 81}, {96, 117}, {98, 119}, {100, 113}, {102, 115}, {128, 149}, {130, 151}, {132, 145}, {226, 247}, {228, 241}, {230, 243}, {232, 253}, {234, 255}, {236, 249}, {238, 251}, {256, 277}, {258, 279}, {260, 273}, {262, 275}, {264, 285}, {266, 287}, {268, 281}, {270, 283}, {290, 311}, {294, 307}, {296, 317}, {298, 319}, {300, 313}, {302, 315}, {328, 349}, {330, 351}, {332, 345}, {334, 347}, {360, 381}, {362, 383}, {364, 377}, {366, 379}, {2, 20}, {491, 509}, {490, 508}, {483, 501}, {482, 500}, {458, 476}, {451, 469}, {450, 468}, {419, 437}, {418, 436}, {387, 405}, {386, 404}, {171, 189}, {139, 157}, {138, 156}, {3, 21}, {10, 28}, {11, 29}, {35, 53}, {42, 60}, {43, 61}, {74, 92}, {75, 93}, {106, 124}, {107, 125}, {322, 340}, {354, 372}, {355, 373}, {97, 118}, {397, 410}, {393, 414}, {197, 210}, {193, 214}, {165, 178}, {161, 182}, {101, 114}, {129, 150}, {133, 146}, {225, 246}, {229, 242}, {233, 254}, {237, 250}, {257, 278}, {261, 274}, {265, 286}, {269, 282}, {297, 318}, {301, 314}, {329, 350}, {333, 346}, {361, 382}, {365, 378}, {131, 152}, {199, 220}, {195, 216}, {163, 184}, {227, 248}, {231, 252}, {259, 280}, {263, 284}, {291, 312}, {295, 316}, {327, 348}, {359, 380}, {204, 208}, {236, 240}, {237, 241}, {238, 242}, {269, 273}, {270, 274}, {271, 275}, {303, 307}, {132, 153}, {202, 215}, {200, 213}, {198, 219}, {196, 217}, {170, 183}, {168, 181}, {166, 187}, {164, 185}, {136, 149}, {228, 249}, {230, 251}, {232, 245}, {234, 247}, {260, 281}, {262, 283}, {264, 277}, {266, 279}, {292, 313}, {294, 315}, {296, 309}, {298, 311}, {324, 345}, {326, 347}, {328, 341}, {330, 343}, {358, 379}, {362, 375}, {6, 24}, {487, 505}, {486, 504}, {455, 473}, {454, 472}, {423, 441}, {422, 440}, {390, 408}, {224, 254}, {7, 25}, {38, 56}, {39, 57}, {70, 88}, {71, 89}, {103, 121}, {225, 255}, {256, 286}, {257, 287}, {165, 186}, {201, 214}, {197, 218}, {169, 182}, {229, 250}, {233, 246}, {261, 282}, {265, 278}, {293, 314}, {297, 310}, {325, 346}, {329, 342}, {18, 48}, {463, 493}, {462, 492}, {395, 425}, {394, 424}, {223, 253}, {222, 252}, {155, 185}, {154, 184}, {19, 49}, {86, 116}, {87, 117}, {258, 288}, {259, 289}, {326, 356}, {327, 357}, {1, 34}, {477, 510}, {409, 442}, {205, 238}, {137, 170}, {69, 102}, {273, 306}, {341, 374}, {20, 50}, {461, 491}, {460, 490}, {157, 187}, {156, 186}, {21, 51}, {324, 354}, {325, 355}, {27, 48}, {463, 484}, {399, 420}, {395, 416}, {223, 244}, {159, 180}, {155, 176}, {91, 112}, {95, 116}, {267, 288}, {331, 352}, {335, 356}, {28, 49}, {462, 483}, {460, 481}, {398, 419}, {396, 417}, {222, 243}, {158, 179}, {156, 177}, {30, 51}, {92, 113}, {94, 115}, {268, 289}, {332, 353}, {334, 355}, {14, 32}, {479, 497}, {478, 496}, {415, 433}, {414, 432}, {393, 423}, {392, 422}, {207, 225}, {206, 224}, {143, 161}, {142, 160}, {15, 33}, {78, 96}, {79, 97}, {88, 118}, {89, 119}, {286, 304}, {287, 305}, {350, 368}, {351, 369}, {29, 50}, {461, 482}, {397, 418}, {157, 178}, {93, 114}, {333, 354}, {16, 32}, {479, 495}, {478, 494}, {415, 431}, {414, 430}, {413, 429}, {412, 428}, {411, 427}, {410, 426}, {221, 237}, {220, 236}, {219, 235}, {218, 234}, {217, 233}, {216, 232}, {215, 231}, {214, 230}, {213, 229}, {212, 228}, {211, 227}, {210, 226}, {209, 225}, {208, 224}, {153, 169}, {152, 168}, {151, 167}, {150, 166}, {149, 165}, {148, 164}, {147, 163}, {146, 162}, {145, 161}, {144, 160}, {17, 33}, {80, 96}, {81, 97}, {82, 98}, {83, 99}, {84, 100}, {85, 101}, {274, 290}, {275, 291}, {276, 292}, {277, 293}, {278, 294}, {279, 295}, {280, 296}, {281, 297}, {282, 298}, {283, 299}, {284, 300}, {285, 301}, {286, 302}, {287, 303}, {342, 358}, {343, 359}, {344, 360}, {345, 361}, {346, 362}, {347, 363}, {348, 364}, {349, 365}, {350, 366}, {351, 367}, {16, 34}, {477, 495}, {413, 431}, {412, 430}, {409, 427}, {220, 238}, {217, 235}, {216, 234}, {213, 231}, {212, 230}, {209, 227}, {208, 226}, {152, 170}, {149, 167}, {148, 166}, {145, 163}, {144, 162}, {80, 98}, {81, 99}, {84, 102}, {273, 291}, {276, 294}, {277, 295}, {280, 298}, {281, 299}, {284, 302}, {285, 303}, {341, 359}, {344, 362}, {345, 363}, {348, 366}, {349, 367}, {23, 36}, {475, 488}, {471, 484}, {467, 480}, {407, 420}, {403, 416}, {159, 172}, {27, 40}, {31, 44}, {91, 104}, {95, 108}, {339, 352}, {18, 39}, {476, 489}, {472, 493}, {470, 483}, {468, 481}, {466, 487}, {464, 485}, {406, 419}, {404, 417}, {402, 423}, {400, 421}, {158, 171}, {154, 175}, {22, 35}, {24, 45}, {26, 47}, {28, 41}, {30, 43}, {88, 109}, {90, 111}, {92, 105}, {94, 107}, {336, 357}, {340, 353}, {82, 100}, {411, 429}, {410, 428}, {219, 237}, {218, 236}, {211, 229}, {210, 228}, {147, 165}, {146, 164}, {83, 101}, {274, 292}, {275, 293}, {282, 300}, {283, 301}, {346, 364}, {347, 365}, {25, 46}, {469, 482}, {465, 486}, {405, 418}, {401, 422}, {29, 42}, {89, 110}, {93, 106}, {19, 40}, {471, 492}, {467, 488}, {403, 424}, {23, 44}, {87, 108}, {31, 35}, {476, 480}, {20, 41}, {474, 487}, {472, 485}, {470, 491}, {468, 489}, {408, 421}, {404, 425}, {22, 43}, {24, 37}, {26, 39}, {86, 107}, {90, 103}, {150, 168}, {215, 233}, {214, 232}, {151, 169}, {278, 296}, {279, 297}, {342, 360}, {343, 361}, {21, 42}, {473, 486}, {469, 490}, {25, 38}, {54, 84}, {427, 457}, {426, 456}, {191, 221}, {190, 220}, {55, 85}, {290, 320}, {291, 321}, {52, 82}, {429, 459}, {428, 458}, {189, 219}, {188, 218}, {53, 83}, {292, 322}, {293, 323}, {35, 68}, {443, 476}, {171, 204}, {307, 340}, {59, 80}, {431, 452}, {427, 448}, {191, 212}, {63, 84}, {299, 320}, {60, 81}, {430, 451}, {428, 449}, {190, 211}, {188, 209}, {62, 83}, {300, 321}, {302, 323}, {46, 64}, {447, 465}, {446, 464}, {175, 193}, {174, 192}, {47, 65}, {318, 336}, {319, 337}, {61, 82}, {429, 450}, {189, 210}, {301, 322}, {48, 64}, {447, 463}, {446, 462}, {445, 461}, {444, 460}, {187, 203}, {186, 202}, {185, 201}, {184, 200}, {183, 199}, {182, 198}, {181, 197}, {180, 196}, {179, 195}, {178, 194}, {177, 193}, {176, 192}, {49, 65}, {50, 66}, {51, 67}, {308, 324}, {309, 325}, {310, 326}, {311, 327}, {312, 328}, {313, 329}, {314, 330}, {315, 331}, {316, 332}, {317, 333}, {318, 334}, {319, 335}, {48, 66}, {445, 463}, {444, 462}, {185, 203}, {184, 202}, {181, 199}, {180, 198}, {177, 195}, {176, 194}, {49, 67}, {308, 326}, {309, 327}, {312, 330}, {313, 331}, {316, 334}, {317, 335}, {59, 72}, {439, 452}, {435, 448}, {63, 76}, {56, 77}, {438, 451}, {436, 449}, {434, 455}, {432, 453}, {58, 79}, {60, 73}, {62, 75}, {50, 68}, {443, 461}, {186, 204}, {179, 197}, {178, 196}, {307, 325}, {314, 332}, {315, 333}, {57, 78}, {437, 450}, {433, 454}, {61, 74}, {55, 76}, {435, 456}, {52, 73}, {442, 455}, {440, 453}, {438, 459}, {436, 457}, {54, 75}, {56, 69}, {58, 71}, {182, 200}, {183, 201}, {310, 328}, {311, 329}, {53, 74}, {441, 454}, {437, 458}, {57, 70}, {122, 152}, {123, 153}, {358, 388}, {359, 389}, {123, 144}, {127, 148}, {363, 384}, {367, 388}, {124, 145}, {126, 147}, {364, 385}, {366, 387}, {110, 128}, {111, 129}, {120, 150}, {121, 151}, {360, 390}, {361, 391}, {382, 400}, {383, 401}, {103, 136}, {125, 146}, {365, 386}, {375, 408}, {112, 128}, {113, 129}, {114, 130}, {115, 131}, {116, 132}, {117, 133}, {118, 134}, {119, 135}, {376, 392}, {377, 393}, {378, 394}, {379, 395}, {380, 396}, {381, 397}, {382, 398}, {383, 399}, {112, 130}, {113, 131}, {116, 134}, {117, 135}, {376, 394}, {377, 395}, {380, 398}, {381, 399}, {127, 140}, {371, 384}, {120, 141}, {122, 143}, {124, 137}, {126, 139}, {368, 389}, {370, 391}, {372, 385}, {374, 387}, {114, 132}, {115, 133}, {378, 396}, {379, 397}, {121, 142}, {125, 138}, {369, 390}, {373, 386}, {118, 136}, {375, 393}, {14, 494}, {15, 495}, {16, 496}, {17, 497}, {6, 495}, {16, 505}, {5, 494}, {17, 506}, {239, 257}, {254, 272}, {240, 256}, {241, 257}, {242, 258}, {243, 259}, {244, 260}, {245, 261}, {246, 262}, {247, 263}, {248, 264}, {249, 265}, {250, 266}, {251, 267}, {252, 268}, {253, 269}, {254, 270}, {255, 271}, {2, 499}, {4, 501}, {6, 503}, {8, 505}, {10, 507}, {12, 509}, {240, 258}, {241, 259}, {244, 262}, {245, 263}, {248, 266}, {249, 267}, {252, 270}, {253, 271}, {1, 498}, {5, 502}, {9, 506}, {13, 510}, {242, 260}, {243, 261}, {250, 268}, {251, 269}, {3, 500}, {7, 496}, {11, 508}, {15, 504}, {8, 497}, {10, 499}, {12, 501}, {14, 503}, {1, 507}, {4, 510}, {9, 498}, {13, 502}, {2, 508}, {3, 509}, {246, 264}, {247, 265}, {7, 504}, {11, 500}, {239, 272}, {255, 256} }>;

(II) A more general form is to represent the graph as the orbit of {17, 18} under the group generated by the following permutations:

a: (2, 17)(3, 16)(4, 15)(5, 14)(6, 13)(7, 12)(8, 11)(9, 10)(19, 34)(20, 33)(21, 32)(22, 31)(23, 30)(24, 29)(25, 28)(26, 27)(36, 51)(37, 50)(38, 49)(39, 48)(40, 47)(41, 46)(42, 45)(43, 44)(53, 68)(54, 67)(55, 66)(56, 65)(57, 64)(58, 63)(59, 62)(60, 61)(70, 85)(71, 84)(72, 83)(73, 82)(74, 81)(75, 80)(76, 79)(77, 78)(87, 102)(88, 101)(89, 100)(90, 99)(91, 98)(92, 97)(93, 96)(94, 95)(104, 119)(105, 118)(106, 117)(107, 116)(108, 115)(109, 114)(110, 113)(111, 112)(121, 136)(122, 135)(123, 134)(124, 133)(125, 132)(126, 131)(127, 130)(128, 129)(138, 153)(139, 152)(140, 151)(141, 150)(142, 149)(143, 148)(144, 147)(145, 146)(155, 170)(156, 169)(157, 168)(158, 167)(159, 166)(160, 165)(161, 164)(162, 163)(172, 187)(173, 186)(174, 185)(175, 184)(176, 183)(177, 182)(178, 181)(179, 180)(189, 204)(190, 203)(191, 202)(192, 201)(193, 200)(194, 199)(195, 198)(196, 197)(206, 221)(207, 220)(208, 219)(209, 218)(210, 217)(211, 216)(212, 215)(213, 214)(223, 238)(224, 237)(225, 236)(226, 235)(227, 234)(228, 233)(229, 232)(230, 231)(240, 255)(241, 254)(242, 253)(243, 252)(244, 251)(245, 250)(246, 249)(247, 248)(257, 272)(258, 271)(259, 270)(260, 269)(261, 268)(262, 267)(263, 266)(264, 265)(274, 289)(275, 288)(276, 287)(277, 286)(278, 285)(279, 284)(280, 283)(281, 282)(291, 306)(292, 305)(293, 304)(294, 303)(295, 302)(296, 301)(297, 300)(298, 299)(308, 323)(309, 322)(310, 321)(311, 320)(312, 319)(313, 318)(314, 317)(315, 316)(325, 340)(326, 339)(327, 338)(328, 337)(329, 336)(330, 335)(331, 334)(332, 333)(342, 357)(343, 356)(344, 355)(345, 354)(346, 353)(347, 352)(348, 351)(349, 350)(359, 374)(360, 373)(361, 372)(362, 371)(363, 370)(364, 369)(365, 368)(366, 367)(376, 391)(377, 390)(378, 389)(379, 388)(380, 387)(381, 386)(382, 385)(383, 384)(393, 408)(394, 407)(395, 406)(396, 405)(397, 404)(398, 403)(399, 402)(400, 401)(410, 425)(411, 424)(412, 423)(413, 422)(414, 421)(415, 420)(416, 419)(417, 418)(427, 442)(428, 441)(429, 440)(430, 439)(431, 438)(432, 437)(433, 436)(434, 435)(444, 459)(445, 458)(446, 457)(447, 456)(448, 455)(449, 454)(450, 453)(451, 452)(461, 476)(462, 475)(463, 474)(464, 473)(465, 472)(466, 471)(467, 470)(468, 469)(478, 493)(479, 492)(480, 491)(481, 490)(482, 489)(483, 488)(484, 487)(485, 486)(495, 510)(496, 509)(497, 508)(498, 507)(499, 506)(500, 505)(501, 504)(502, 503)
b: (1, 18, 35, 52, 69, 86, 103, 120, 137, 154, 171, 188, 205, 222, 239, 256, 273, 290, 307, 324, 341, 358, 375, 392, 409, 426, 443, 460, 477, 494)(2, 22, 51, 65, 70, 90, 119, 133, 138, 158, 187, 201, 206, 226, 255, 269, 274, 294, 323, 337, 342, 362, 391, 405, 410, 430, 459, 473, 478, 498, 17, 31, 36, 56, 85, 99, 104, 124, 153, 167, 172, 192, 221, 235, 240, 260, 289, 303, 308, 328, 357, 371, 376, 396, 425, 439, 444, 464, 493, 507)(3, 26, 50, 61, 71, 94, 118, 129, 139, 162, 186, 197, 207, 230, 254, 265, 275, 298, 322, 333, 343, 366, 390, 401, 411, 434, 458, 469, 479, 502, 16, 27, 37, 60, 84, 95, 105, 128, 152, 163, 173, 196, 220, 231, 241, 264, 288, 299, 309, 332, 356, 367, 377, 400, 424, 435, 445, 468, 492, 503)(4, 30, 49, 57, 72, 98, 117, 125, 140, 166, 185, 193, 208, 234, 253, 261, 276, 302, 321, 329, 344, 370, 389, 397, 412, 438, 457, 465, 480, 506, 15, 23, 38, 64, 83, 91, 106, 132, 151, 159, 174, 200, 219, 227, 242, 268, 287, 295, 310, 336, 355, 363, 378, 404, 423, 431, 446, 472, 491, 499)(5, 34, 48, 53, 73, 102, 116, 121, 141, 170, 184, 189, 209, 238, 252, 257, 277, 306, 320, 325, 345, 374, 388, 393, 413, 442, 456, 461, 481, 510, 14, 19, 39, 68, 82, 87, 107, 136, 150, 155, 175, 204, 218, 223, 243, 272, 286, 291, 311, 340, 354, 359, 379, 408, 422, 427, 447, 476, 490, 495)(6, 21, 47, 66, 74, 89, 115, 134, 142, 157, 183, 202, 210, 225, 251, 270, 278, 293, 319, 338, 346, 361, 387, 406, 414, 429, 455, 474, 482, 497, 13, 32, 40, 55, 81, 100, 108, 123, 149, 168, 176, 191, 217, 236, 244, 259, 285, 304, 312, 327, 353, 372, 380, 395, 421, 440, 448, 463, 489, 508)(7, 25, 46, 62, 75, 93, 114, 130, 143, 161, 182, 198, 211, 229, 250, 266, 279, 297, 318, 334, 347, 365, 386, 402, 415, 433, 454, 470, 483, 501, 12, 28, 41, 59, 80, 96, 109, 127, 148, 164, 177, 195, 216, 232, 245, 263, 284, 300, 313, 331, 352, 368, 381, 399, 420, 436, 449, 467, 488, 504)(8, 29, 45, 58, 76, 97, 113, 126, 144, 165, 181, 194, 212, 233, 249, 262, 280, 301, 317, 330, 348, 369, 385, 398, 416, 437, 453, 466, 484, 505, 11, 24, 42, 63, 79, 92, 110, 131, 147, 160, 178, 199, 215, 228, 246, 267, 283, 296, 314, 335, 351, 364, 382, 403, 419, 432, 450, 471, 487, 500)(9, 33, 44, 54, 77, 101, 112, 122, 145, 169, 180, 190, 213, 237, 248, 258, 281, 305, 316, 326, 349, 373, 384, 394, 417, 441, 452, 462, 485, 509, 10, 20, 43, 67, 78, 88, 111, 135, 146, 156, 179, 203, 214, 224, 247, 271, 282, 292, 315, 339, 350, 360, 383, 407, 418, 428, 451, 475, 486, 496)
c: (2, 5, 17, 14)(3, 9, 16, 10)(4, 13, 15, 6)(7, 8, 12, 11)(18, 494)(19, 498, 34, 507)(20, 502, 33, 503)(21, 506, 32, 499)(22, 510, 31, 495)(23, 497, 30, 508)(24, 501, 29, 504)(25, 505, 28, 500)(26, 509, 27, 496)(35, 477)(36, 481, 51, 490)(37, 485, 50, 486)(38, 489, 49, 482)(39, 493, 48, 478)(40, 480, 47, 491)(41, 484, 46, 487)(42, 488, 45, 483)(43, 492, 44, 479)(52, 460)(53, 464, 68, 473)(54, 468, 67, 469)(55, 472, 66, 465)(56, 476, 65, 461)(57, 463, 64, 474)(58, 467, 63, 470)(59, 471, 62, 466)(60, 475, 61, 462)(69, 443)(70, 447, 85, 456)(71, 451, 84, 452)(72, 455, 83, 448)(73, 459, 82, 444)(74, 446, 81, 457)(75, 450, 80, 453)(76, 454, 79, 449)(77, 458, 78, 445)(86, 426)(87, 430, 102, 439)(88, 434, 101, 435)(89, 438, 100, 431)(90, 442, 99, 427)(91, 429, 98, 440)(92, 433, 97, 436)(93, 437, 96, 432)(94, 441, 95, 428)(103, 409)(104, 413, 119, 422)(105, 417, 118, 418)(106, 421, 117, 414)(107, 425, 116, 410)(108, 412, 115, 423)(109, 416, 114, 419)(110, 420, 113, 415)(111, 424, 112, 411)(120, 392)(121, 396, 136, 405)(122, 400, 135, 401)(123, 404, 134, 397)(124, 408, 133, 393)(125, 395, 132, 406)(126, 399, 131, 402)(127, 403, 130, 398)(128, 407, 129, 394)(137, 375)(138, 379, 153, 388)(139, 383, 152, 384)(140, 387, 151, 380)(141, 391, 150, 376)(142, 378, 149, 389)(143, 382, 148, 385)(144, 386, 147, 381)(145, 390, 146, 377)(154, 358)(155, 362, 170, 371)(156, 366, 169, 367)(157, 370, 168, 363)(158, 374, 167, 359)(159, 361, 166, 372)(160, 365, 165, 368)(161, 369, 164, 364)(162, 373, 163, 360)(171, 341)(172, 345, 187, 354)(173, 349, 186, 350)(174, 353, 185, 346)(175, 357, 184, 342)(176, 344, 183, 355)(177, 348, 182, 351)(178, 352, 181, 347)(179, 356, 180, 343)(188, 324)(189, 328, 204, 337)(190, 332, 203, 333)(191, 336, 202, 329)(192, 340, 201, 325)(193, 327, 200, 338)(194, 331, 199, 334)(195, 335, 198, 330)(196, 339, 197, 326)(205, 307)(206, 311, 221, 320)(207, 315, 220, 316)(208, 319, 219, 312)(209, 323, 218, 308)(210, 310, 217, 321)(211, 314, 216, 317)(212, 318, 215, 313)(213, 322, 214, 309)(222, 290)(223, 294, 238, 303)(224, 298, 237, 299)(225, 302, 236, 295)(226, 306, 235, 291)(227, 293, 234, 304)(228, 297, 233, 300)(229, 301, 232, 296)(230, 305, 231, 292)(239, 273)(240, 277, 255, 286)(241, 281, 254, 282)(242, 285, 253, 278)(243, 289, 252, 274)(244, 276, 251, 287)(245, 280, 250, 283)(246, 284, 249, 279)(247, 288, 248, 275)(257, 260, 272, 269)(258, 264, 271, 265)(259, 268, 270, 261)(262, 263, 267, 266)
d: (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)(18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)(35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)(52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)(69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)(86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102)(103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119)(120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136)(137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153)(154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170)(171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187)(188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204)(205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221)(222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238)(239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255)(256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272)(273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289)(290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306)(307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323)(324, 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340)(341, 342, 343, 344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354, 355, 356, 357)(358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374)(375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391)(392, 393, 394, 395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406, 407, 408)(409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, 425)(426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442)(443, 444, 445, 446, 447, 448, 449, 450, 451, 452, 453, 454, 455, 456, 457, 458, 459)(460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, 475, 476)(477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493)(494, 495, 496, 497, 498, 499, 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510)

(III) Last is Groups&Graphs. Copy everything between (not including) the lines of asterisks into a plain text file and save it as "graph.txt". Then launch G&G (Groups&Graphs) and select Read Text from the File menu.

**************

&Graph
C4[ 510, 7 ]
510
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-3 509 500 19 21
-4 22 510 501 20
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-7 23 496 25 504
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-244 231 223 260 262
-245 232 224 261 263
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-508 11 2 490 492
-509 12 3 491 493
-510 13 4 477 492
0

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