C4graphGraph forms for C4 [ 506, 6 ] = PS(22,23;5)

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On this page are computer-accessible forms for the graph C4[ 506, 6 ] = PS(22,23;5).

(I) Following is a form readable by MAGMA:

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

(II) A more general form is to represent the graph as the orbit of {276, 277} under the group generated by the following permutations:

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

(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[ 506, 6 ]
506
-1 46 25 498 493
-2 24 26 499 494
-3 495 25 27 500
-4 496 26 28 501
-5 497 27 29 502
-6 498 28 30 503
-7 499 29 31 504
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-18 487 40 492 42
-19 488 41 493 43
-20 44 489 42 494
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-23 45 24 497 492
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0

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