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On this page are computer-accessible forms for the graph C4[ 510, 1 ] = W(255,2).

(I) Following is a form readable by MAGMA:

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

(II) A more general form is to represent the graph as the orbit of {2, 3} under the group generated by the following permutations:

a: (63, 318)
b: (191, 446)
c: (255, 510)
d: (7, 262)
e: (199, 454)
f: (71, 326)
g: (135, 390)
h: (233, 488)
m: (105, 360)
n1: (169, 424)
a1: (41, 296)
b1: (15, 270)
c1: (79, 334)
d1: (207, 462)
e1: (143, 398)
f1: (21, 276)
g1: (149, 404)
h1: (85, 340)
m1: (213, 468)
n2: (27, 282)
a2: (155, 410)
b2: (91, 346)
c2: (219, 474)
d2: (3, 258)
e2: (195, 450)
f2: (67, 322)
g2: (131, 386)
h2: (29, 284)
m2: (157, 412)
n3: (93, 348)
a3: (221, 476)
b3: (31, 286)
c3: (159, 414)
d3: (95, 350)
e3: (223, 478)
f3: (13, 268)
g3: (77, 332)
h3: (205, 460)
m3: (141, 396)
n4: (235, 490)
a4: (107, 362)
b4: (171, 426)
c4: (43, 298)
d4: (19, 274)
e4: (147, 402)
f4: (83, 338)
g4: (211, 466)
h4: (16, 271)
m4: (160, 415)
n5: (96, 351)
a5: (176, 431)
b5: (80, 335)
c5: (224, 479)
d5: (32, 287)
e5: (240, 495)
f5: (48, 303)
g5: (208, 463)
h5: (64, 319)
m5: (192, 447)
n6: (112, 367)
a6: (144, 399)
b6: (128, 383)
c6: (225, 480)
d6: (97, 352)
e6: (161, 416)
f6: (33, 288)
g6: (11, 266)
h6: (75, 330)
m6: (203, 458)
n7: (139, 394)
a7: (242, 497)
b7: (98, 353)
c7: (162, 417)
d7: (82, 337)
e7: (178, 433)
f7: (210, 465)
g7: (34, 289)
h7: (226, 481)
m7: (18, 273)
n8: (50, 305)
a8: (194, 449)
b8: (66, 321)
c8: (146, 401)
d8: (114, 369)
e8: (130, 385)
f8: (2, 257)
g8: (9, 264)
h8: (73, 328)
m8: (201, 456)
n9: (137, 392)
a9: (250, 505)
b9: (106, 361)
c9: (154, 409)
d9: (90, 345)
e9: (170, 425)
f9: (74, 329)
g9: (42, 297)
h9: (218, 473)
m9: (26, 281)
n10: (234, 489)
a10: (10, 265)
b10: (202, 457)
c10: (58, 313)
d10: (186, 441)
e10: (138, 393)
f10: (122, 377)
g10: (17, 272)
h10: (81, 336)
m10: (209, 464)
n11: (145, 400)
a11: (227, 482)
b11: (99, 354)
c11: (163, 418)
d11: (35, 290)
e11: (249, 504)
f11: (185, 440)
g11: (57, 312)
h11: (121, 376)
m11: (231, 486)
n12: (103, 358)
a12: (167, 422)
b12: (39, 294)
c12: (252, 507)
d12: (65, 320)
e12: (193, 448)
f12: (108, 363)
g12: (156, 411)
h12: (92, 347)
m12: (172, 427)
n13: (76, 331)
a13: (44, 299)
b13: (220, 475)
c13: (28, 283)
d13: (236, 491)
e13: (12, 267)
f13: (204, 459)
g13: (60, 315)
h13: (188, 443)
m13: (140, 395)
n14: (124, 379)
a14: (23, 278)
b14: (151, 406)
c14: (87, 342)
d14: (215, 470)
e14: (243, 498)
f14: (179, 434)
g14: (51, 306)
h14: (115, 370)
m14: (247, 502)
n15: (183, 438)
a15: (55, 310)
b15: (119, 374)
c15: (245, 500)
d15: (181, 436)
e15: (53, 308)
f15: (117, 372)
g15: (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)
h15: (253, 508)
m15: (61, 316)
n16: (189, 444)
a16: (125, 380)
b16: (8, 263)
c16: (152, 407)
d16: (104, 359)
e16: (168, 423)
f16: (88, 343)
g16: (184, 439)
h16: (72, 327)
m16: (216, 471)
n17: (40, 295)
a17: (232, 487)
b17: (24, 279)
c17: (248, 503)
d17: (56, 311)
e17: (200, 455)
f17: (120, 375)
g17: (136, 391)
h17: (241, 496)
m17: (177, 432)
n18: (49, 304)
a18: (113, 368)
b18: (2, 255)(3, 254)(4, 253)(5, 252)(6, 251)(7, 250)(8, 249)(9, 248)(10, 247)(11, 246)(12, 245)(13, 244)(14, 243)(15, 242)(16, 241)(17, 240)(18, 239)(19, 238)(20, 237)(21, 236)(22, 235)(23, 234)(24, 233)(25, 232)(26, 231)(27, 230)(28, 229)(29, 228)(30, 227)(31, 226)(32, 225)(33, 224)(34, 223)(35, 222)(36, 221)(37, 220)(38, 219)(39, 218)(40, 217)(41, 216)(42, 215)(43, 214)(44, 213)(45, 212)(46, 211)(47, 210)(48, 209)(49, 208)(50, 207)(51, 206)(52, 205)(53, 204)(54, 203)(55, 202)(56, 201)(57, 200)(58, 199)(59, 198)(60, 197)(61, 196)(62, 195)(63, 194)(64, 193)(65, 192)(66, 191)(67, 190)(68, 189)(69, 188)(70, 187)(71, 186)(72, 185)(73, 184)(74, 183)(75, 182)(76, 181)(77, 180)(78, 179)(79, 178)(80, 177)(81, 176)(82, 175)(83, 174)(84, 173)(85, 172)(86, 171)(87, 170)(88, 169)(89, 168)(90, 167)(91, 166)(92, 165)(93, 164)(94, 163)(95, 162)(96, 161)(97, 160)(98, 159)(99, 158)(100, 157)(101, 156)(102, 155)(103, 154)(104, 153)(105, 152)(106, 151)(107, 150)(108, 149)(109, 148)(110, 147)(111, 146)(112, 145)(113, 144)(114, 143)(115, 142)(116, 141)(117, 140)(118, 139)(119, 138)(120, 137)(121, 136)(122, 135)(123, 134)(124, 133)(125, 132)(126, 131)(127, 130)(128, 129)(257, 510)(258, 509)(259, 508)(260, 507)(261, 506)(262, 505)(263, 504)(264, 503)(265, 502)(266, 501)(267, 500)(268, 499)(269, 498)(270, 497)(271, 496)(272, 495)(273, 494)(274, 493)(275, 492)(276, 491)(277, 490)(278, 489)(279, 488)(280, 487)(281, 486)(282, 485)(283, 484)(284, 483)(285, 482)(286, 481)(287, 480)(288, 479)(289, 478)(290, 477)(291, 476)(292, 475)(293, 474)(294, 473)(295, 472)(296, 471)(297, 470)(298, 469)(299, 468)(300, 467)(301, 466)(302, 465)(303, 464)(304, 463)(305, 462)(306, 461)(307, 460)(308, 459)(309, 458)(310, 457)(311, 456)(312, 455)(313, 454)(314, 453)(315, 452)(316, 451)(317, 450)(318, 449)(319, 448)(320, 447)(321, 446)(322, 445)(323, 444)(324, 443)(325, 442)(326, 441)(327, 440)(328, 439)(329, 438)(330, 437)(331, 436)(332, 435)(333, 434)(334, 433)(335, 432)(336, 431)(337, 430)(338, 429)(339, 428)(340, 427)(341, 426)(342, 425)(343, 424)(344, 423)(345, 422)(346, 421)(347, 420)(348, 419)(349, 418)(350, 417)(351, 416)(352, 415)(353, 414)(354, 413)(355, 412)(356, 411)(357, 410)(358, 409)(359, 408)(360, 407)(361, 406)(362, 405)(363, 404)(364, 403)(365, 402)(366, 401)(367, 400)(368, 399)(369, 398)(370, 397)(371, 396)(372, 395)(373, 394)(374, 393)(375, 392)(376, 391)(377, 390)(378, 389)(379, 388)(380, 387)(381, 386)(382, 385)(383, 384)
c18: (237, 492)
d18: (109, 364)
e18: (173, 428)
f18: (45, 300)
g18: (4, 259)
h18: (148, 403)
m18: (100, 355)
n19: (164, 419)
a19: (84, 339)
b19: (180, 435)
c19: (212, 467)
d19: (36, 291)
e19: (228, 483)
f19: (20, 275)
g19: (244, 499)
h19: (52, 307)
m19: (196, 451)
n20: (68, 323)
a20: (116, 371)
b20: (132, 387)
c20: (5, 260)
d20: (197, 452)
e20: (69, 324)
f20: (133, 388)
g20: (251, 506)
h20: (59, 314)
m20: (187, 442)
n21: (123, 378)
a21: (254, 509)
b21: (158, 413)
c21: (94, 349)
d21: (174, 429)
e21: (78, 333)
f21: (46, 301)
g21: (222, 477)
h21: (30, 285)
m21: (238, 493)
n22: (14, 269)
a22: (206, 461)
b22: (62, 317)
c22: (190, 445)
d22: (110, 365)
e22: (142, 397)
f22: (126, 381)
g22: (239, 494)
h22: (175, 430)
m22: (47, 302)
n23: (111, 366)
a23: (25, 280)
b23: (153, 408)
c23: (89, 344)
d23: (217, 472)
e23: (229, 484)
f23: (101, 356)
g23: (165, 420)
h23: (37, 292)
m23: (129, 384)
n24: (6, 261)
a24: (150, 405)
b24: (102, 357)
c24: (166, 421)
d24: (86, 341)
e24: (182, 437)
f24: (214, 469)
g24: (38, 293)
h24: (230, 485)
m24: (22, 277)
n25: (246, 501)
a25: (54, 309)
b25: (198, 453)
c25: (70, 325)
d25: (118, 373)
e25: (134, 389)

(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, 1 ]
510
-1 2 255 257 510
-2 1 3 256 258
-3 2 4 257 259
-4 3 5 258 260
-5 4 6 259 261
-6 5 7 260 262
-7 6 8 261 263
-8 264 7 9 262
-9 265 8 10 263
-10 11 264 266 9
-11 12 265 267 10
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-14 13 15 268 270
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-259 3 5 258 260
-260 4 6 259 261
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-266 12 265 267 10
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-510 1 254 256 509
0

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