C4graphGraph forms for C4 [ 506, 3 ] = PS(22,23;2)

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On this page are computer-accessible forms for the graph C4[ 506, 3 ] = PS(22,23;2).

(I) Following is a form readable by MAGMA:

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

(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, 45, 51, 85, 109, 130, 157, 172, 188, 225, 243, 276, 279, 319, 331, 353, 378, 397, 428, 458, 467, 495)(3, 43, 55, 77, 102, 121, 152, 182, 191, 219, 232, 275, 281, 315, 339, 360, 387, 402, 418, 455, 473, 506)(4, 41, 59, 92, 95, 135, 147, 169, 194, 213, 244, 274, 283, 311, 324, 367, 373, 407, 431, 452, 479, 494)(5, 39, 63, 84, 111, 126, 142, 179, 197, 230, 233, 273, 285, 307, 332, 351, 382, 412, 421, 449, 462, 505)(6, 37, 67, 76, 104, 117, 160, 166, 200, 224, 245, 272, 287, 303, 340, 358, 391, 394, 434, 446, 468, 493)(7, 35, 48, 91, 97, 131, 155, 176, 203, 218, 234, 271, 289, 322, 325, 365, 377, 399, 424, 443, 474, 504)(8, 33, 52, 83, 113, 122, 150, 163, 206, 212, 246, 270, 291, 318, 333, 349, 386, 404, 437, 440, 480, 492)(9, 31, 56, 75, 106, 136, 145, 173, 186, 229, 235, 269, 293, 314, 341, 356, 372, 409, 427, 460, 463, 503)(10, 29, 60, 90, 99, 127, 140, 183, 189, 223, 247, 268, 295, 310, 326, 363, 381, 414, 417, 457, 469, 491)(11, 27, 64, 82, 115, 118, 158, 170, 192, 217, 236, 267, 297, 306, 334, 347, 390, 396, 430, 454, 475, 502)(12, 25, 68, 74, 108, 132, 153, 180, 195, 211, 248, 266, 299, 302, 342, 354, 376, 401, 420, 451, 481, 490)(13, 46, 49, 89, 101, 123, 148, 167, 198, 228, 237, 265, 278, 321, 327, 361, 385, 406, 433, 448, 464, 501)(14, 44, 53, 81, 94, 137, 143, 177, 201, 222, 249, 264, 280, 317, 335, 368, 371, 411, 423, 445, 470, 489)(15, 42, 57, 73, 110, 128, 161, 164, 204, 216, 238, 263, 282, 313, 343, 352, 380, 393, 436, 442, 476, 500)(16, 40, 61, 88, 103, 119, 156, 174, 207, 210, 250, 262, 284, 309, 328, 359, 389, 398, 426, 439, 482, 488)(17, 38, 65, 80, 96, 133, 151, 184, 187, 227, 239, 261, 286, 305, 336, 366, 375, 403, 416, 459, 465, 499)(18, 36, 69, 72, 112, 124, 146, 171, 190, 221, 251, 260, 288, 301, 344, 350, 384, 408, 429, 456, 471, 487)(19, 34, 50, 87, 105, 138, 141, 181, 193, 215, 240, 259, 290, 320, 329, 357, 370, 413, 419, 453, 477, 498)(20, 32, 54, 79, 98, 129, 159, 168, 196, 209, 252, 258, 292, 316, 337, 364, 379, 395, 432, 450, 483, 486)(21, 30, 58, 71, 114, 120, 154, 178, 199, 226, 241, 257, 294, 312, 345, 348, 388, 400, 422, 447, 466, 497)(22, 28, 62, 86, 107, 134, 149, 165, 202, 220, 253, 256, 296, 308, 330, 355, 374, 405, 435, 444, 472, 485)(23, 26, 66, 78, 100, 125, 144, 175, 205, 214, 242, 255, 298, 304, 338, 362, 383, 410, 425, 441, 478, 496)
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, 3 ]
506
-1 495 496 46 25
-2 496 24 497 26
-3 497 25 498 27
-4 498 26 499 28
-5 499 27 500 29
-6 500 28 501 30
-7 501 29 502 31
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-506 11 12 466 477
0

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