id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A035444
[ 1, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 5, 0, 0, 0, 7, 0, 0, 0, 11, 0, 0, 0, 15, 0, 0, 0, 22, 0, 0, 0, 30, 0, 0, 0, 42, 0, 0, 0, 56, 0, 0, 0, 77, 0, 0, 0, 101, 0, 0, 0, 135, 0, 0, 0, 176, ...
[ "nonn" ]
A194534
[ 1, 4, 59, 1851, 119548, 16039294, 4460214471, 2572187445993, 3075932897564028, 7627704068111689000, 3.922387458465883e+22, 4.1826126951036016e+26, 9.248796169262343e+30, 4.240950603681172e+35 ]
[ "nonn" ]
A276715
[ 1, 14, 33, 42677635, 51, 46, 155, 62, 69, 46, 174, 154, 285, 182, 141, 62, 138, 142, 235, 158, 123, 94, 213, 322, 295, 94, 177, 118, 159, 406, 376, 266, 177, 891528365, 321, 310, 355, 248, 249, 166, 213, 418, 376, 602, 426, 14...
[ "nonn" ]
A110266
[ 1, 1, 2, 2, 3, 3, 4, 3, 4, 5, 6, 6, 7, 7, 8, 7, 7, 8, 10, 9, 9, 11, 14, 12, 11, 12, 15, 16, 14, 15, 17, 14, 15, 17, 20, 18, 18, 18, 21, 21, 17, 19, 21, 20, 23, 22, 23, 22, 23, 21, 27, 30, 26, 27, 29, 29, ...
[ "easy", "nonn" ]
A262139
[ 22, 145, 862, 5041, 29398, 171361, 998782, 5821345, 33929302, 197754481, 1152597598, 6717831121, 39154389142, 228208503745, 1330096633342, 7752371296321, 45184131144598, 263352415571281, 1534930362283102, 8946229758127345, 52142448186480984 ]
[ "nonn", "easy" ]
A093937
[ 8, 5383, 273976272, 1043065776718923, 2.9675561010827848e+23, 6.311874633104458e+33, 1.0042431607269543e+46, 1.1958030460032216e+60 ]
[ "nonn", "hard" ]
A362352
[ 1, 1, 1, 1, 2, 6, 16, 36, 211, 1387, 6511, 23431, 225721, 2207921, 14610597, 71848141, 958259121, 12403693681, 105819536881, 659686502257, 11235532306021, 180826378073461, 1888306425160541, 14256573124903340, 295428115205647100, 5683724892725142000 ]
[ "nonn" ]
A097272
[ 1, 2, 3, 4, 3, 6, 3, 8, 9, 6, 3, 12, 3, 6, 15, 16, 3, 18, 3, 12, 15, 6, 3, 24, 9, 6, 27, 12, 3, 30, 3, 32, 15, 6, 15, 36, 3, 6, 15, 24, 3, 30, 3, 12, 45, 6, 3, 48, 9, 18, 15, 12, 3, 54, 15, 24, 15, 6, ...
[ "nonn" ]
A191879
[ 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 20, 23, 26, 27, 28, 30, 31, 33, 36, 38, 39, 41, 42, 43, 44, 45, 46, 48, 49, 53, 59, 60, 61, 65, 66, 67, 68, 70, 73, 74, 78, 80, 86, 94, 95, 99, 104, 106, 107, 108, 110, 11...
[ "nonn" ]
A183281
[ 1, 4, 22, 134, 2425, 123687, 12282948, 2562040203, 1107329667722, 982402540306648 ]
[ "nonn" ]
A360119
[ 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 1, 4, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 4, 1, 1, 1, 3, 1, 4, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 4, 1, 2, 1, 1, 1, 5, 1, 1, 1, 1...
[ "nonn" ]
A063310
[ -1, 40, 96, 153, 210, 267, 324, 381, 438, 495, 552, 607, 666, 723, 780, 835, 894, 949, 1008, 1063, 1122, 1177, 1236, 1289, 1350, 1405, 1464, 1517, 1578, 1631, 1692, 1745, 1806, 1859, 1920, 1971, 2034, 2087, 2148, 2199, 2262, 2313, 2...
[ "sign" ]
A050787
[ 9, 144, 172, 505, 577, 729, 904, 1010, 1210, 2304, 3097, 3753, 5625, 6081, 6756, 8703, 11664, 12884, 16849, 18649, 21609, 24987, 29737, 36864, 37513, 38134, 38239, 41545, 49461, 51762, 59049, 66465, 68010, 69709, 71852, 73627, 78529 ]
[ "nonn", "nice" ]
A242362
[ 1, 1, 2, 4, 7, 11, 20, 30, 50, 75, 121, 176, 276, 398, 604, 864, 1285, 1814, 2652, 3713, 5339, 7417, 10526, 14500, 20349, 27836, 38653, 52528, 72291, 97612, 133249, 178889, 242379, 323634, 435557, 578579, 773877, 1023074, 1360565 ]
[ "nonn" ]
A343236
[ 3, 0, 0, 9, 0, 9, 1, 7, 1, 0, 7, 6, 6, 6, 0, 2, 1, 1, 7, 9, 4, 5, 5, 9, 9, 1, 2, 4, 5, 9, 7, 7, 6, 1, 3, 8, 9, 7, 0, 0, 3, 0, 0, 9, 9, 9, 1, 2, 1, 3, 8, 1, 3, 3, 3, 5, 5, 5, 1, 6, 9, 8, 2, 8...
[ "nonn", "easy", "cons" ]
A237966
[ 256, 10014, 369068, 25087700, 3450339192, 713207137992, 276807823136806, 191404026313142720, 237221109913547180000 ]
[ "nonn" ]
A246693
[ 1, 1, 3, 51, 1155, 29427, 22639155, 19594173939, 591666769155, 17395890501991156, 545562959212245750000, 1.737476319296669e+22, 1.7822632594268121e+25, 9.887100786216835e+28, 2.0542323580569158e+34 ]
[ "nonn", "easy" ]
A167223
[ 0, 0, 1, 3, 0, 3, 3, 3, 7, 1, 3, 6, 9, 6, 7, 11, 1, 20, 13, 5, 19, 11, 8, 15, 15, 0, 17, 22, 11, 22, 16, 7, 39, 28, 8, 29, 1, 12, 31, 22, 16, 46, 33, 13, 32, 30, 13, 58, 43, 0, 47, 22, 28, 49, 39, 20, 47,...
[ "nonn" ]
A342954
[ 1, 3, 6, 11, 14, 21, 24, 31, 36, 39, 46, 53, 56, 63, 70, 75, 78, 85, 92, 99, 102, 109, 116, 123, 128, 131, 138, 145, 152, 159, 162, 169, 176, 183, 190, 195, 198, 205, 212, 219, 226, 233, 236, 243, 250, 257, 264, 271, 276...
[ "nonn" ]
A218714
[ 0, 9, 378, 11389, 1251967, 46464143, 2363588163, 92615568742, 287369842623, 112076323050317, 2403749863808044, 56094387104417650, 1156752450536914400, 43970228150195450000, 1.0132163897314955e+22, 5.0321211743121723e+23, 1.9164391897329673e+25 ]
[ "nonn" ]
A298819
[ 0, 0, 2, 2, 2, 0, 6, 6, 12, 4, 28, 14, 14, 0, 14, 14, 84, 12, 372, 62, 248, 8, 504, 126, 252, 28, 420, 30, 30, 0, 30, 30, 420, 28, 2044, 1022, 12264, 24, 504, 126, 7812, 124, 253828, 4094, 32752, 16, 16368, 2046, 85932, ...
[ "nonn" ]
A279025
[ 1, 2, 4, 15, 4, 59, 0, 255, 16, 943, 64, 3839, 64, 16063, 256, 65535, 5376, 240383, 21504, 966655, 66560, 3927039, 69632, 16711679, 1134592, 61779967, 4538368, 268107775, 85278720, 988463103, 357892096, 3937140735, 1431633920, 15748235263, 57265356...
[ "nonn", "easy" ]
A128225
[ 1, 6, 2, 15, 9, 3, 28, 20, 12, 4, 45, 35, 25, 15, 5, 66, 54, 42, 30, 18, 6, 91, 77, 63, 49, 35, 21, 7, 120, 104, 88, 72, 56, 40, 24, 8, 153, 135, 117, 99, 81, 63, 45, 27, 9, 190, 170, 150, 130, 110, 90, 70, 50, ...
[ "nonn", "tabl" ]
A318511
[ 1, 2, 9, 2, 25, 9, 49, 4, 27, 25, 121, 9, 169, 49, 225, 6, 289, 27, 361, 25, 441, 121, 529, 18, -125, 169, 405, 49, 841, 225, 961, 12, 1089, 289, 1225, 27, 1369, 361, 1521, 50, 1681, 441, 1849, 121, 675, 529, 2209, 27, -...
[ "sign", "frac" ]
A148769
[ 1, 1, 3, 8, 21, 68, 214, 677, 2273, 7647, 25918, 89348, 311027, 1088056, 3829653, 13588462, 48394968, 172944341, 621204971, 2238314211, 8085624821, 29299373131, 106444414667, 387514343973, 1413668394353, 5167606834130, 18922163532610, 69393623143969, 254887907...
[ "nonn", "walk" ]
A204765
[ 0, 217, 220, 717, 1900, 1917, 4780, 11661, 11760, 28441, 68544, 69121, 166344, 400081, 403444, 970101, 2332420, 2352021, 5654740, 13594917, 13709160, 32958817, 79237560, 79903417, 192098640, 461830921, 465711820, 1119633501, 2691748444, 2714367981 ]
[ "nonn", "easy" ]
A065191
[ 1, 4, 8, 3, 5, 16, 18, 19, 11, 2, 40, 13, 15, 10, 24, 29, 37, 50, 12, 9, 63, 28, 66, 7, 33, 60, 22, 31, 35, 44, 26, 45, 57, 80, 6, 47, 109, 128, 14, 39, 155, 64, 48, 49, 25, 32, 106, 227, 53, 82, 150, 139, 143, ...
[ "nice", "nonn" ]
A087883
[ 1, 1, 6, 12, 19, 33, 43, 61, 70, 86, 113, 131, 161, 183, 195, 215, 246, 282, 288, 336, 359, 373, 407, 437, 467, 516, 554, 571, 595, 607, 625, 717, 747, 782, 806, 868, 886, 928, 976, 1000, 1041, 1073, 1097, 1163, 1182, 1212, ...
[ "nonn" ]
A243366
[ 1, 1, 2, 5, 13, 1, 37, 5, 112, 19, 1, 352, 70, 7, 1136, 259, 34, 1, 3742, 962, 149, 9, 12529, 3585, 627, 54, 1, 42513, 13399, 2584, 279, 11, 145868, 50201, 10529, 1334, 79, 1, 505234, 188481, 42606, 6092, 474, 13, 1764157, 709...
[ "nonn", "tabf" ]
A070947
[ 1, 1, 2, 6, 24, 120, 720, 4320, 29520, 225360, 1890720, 17169120, 166112640, 1680462720, 18189031680, 209008512000, 2532028896000, 32143053484800, 425585741760000, 5865854258188800, 84489178710067200, 1266667808011315200, 19700712491727974000 ]
[ "nonn" ]
A177313
[ 1, 1, 48620, 60110030, 161686253810, 304100156874800, 574996024253854600, 1.0169156293430406e+21, 1.74570835660737e+24, 2.9118200159934913e+27, 4.7545028267584135e+30, 7.626389809822483e+33, 1.2055478550658618e+37 ]
[ "nonn" ]
A128194
[ 4432, 3490, 266, 11069, 1911, 13619, 27010, 3982, 140425, 72738, 21768, 752305, 4100791, 4622387 ]
[ "nonn", "more" ]
A113312
[ 1, 2, 3, 3, 4, 3, 5, 2, 7, -1, 12, -9, 25, -30, 59, -85, 148, -229, 381, -606, 991, -1593, 2588, -4177, 6769, -10942, 17715, -28653, 46372, -75021, 121397, -196414, 317815, -514225, 832044, -1346265, 2178313, -3524574, 5702891, -9227461, ...
[ "easy", "sign" ]
A310054
[ 1, 3, 6, 10, 13, 17, 20, 24, 30, 33, 34, 38, 43, 46, 48, 53, 57, 62, 67, 70, 71, 75, 81, 86, 88, 91, 96, 102, 104, 108, 111, 115, 120, 126, 129, 131, 136, 138, 141, 148, 152, 154, 158, 164, 168, 170, 172, 175, 180, 187...
[ "nonn" ]
A288635
[ 2, 5, 6, 8, 10, 13, 16, 19, 20, 22, 25, 26, 28, 31, 32, 34, 36, 39, 42, 43, 45, 47, 50, 53, 54, 56, 58, 61, 64, 67, 68, 70, 73, 74, 76, 78, 81, 84, 87, 88, 90, 93, 94, 96, 98, 101, 104, 107, 108, 110, 113, 114, 1...
[ "nonn", "easy" ]
A291517
[ -39, -39, -39, -39, -39, -39, -39, -39, -39, -40, -44, -48, -52, -56, -60, -64, -68, -72, -76, -80, -84, -88, -92, -96, -100, -104, -108, -112, -116, -120, -124, -128, -132, -136, -140, -144, -148, -152, -156, -160, -164, -168, -172...
[ "sign" ]
A065250
[ 3, 1, 15, 5, 12, 7, 63, 2, 23, 48, 6, 29, 60, 31, 255, 9, 20, 11, 95, 192, 24, 51, 26, 14, 119, 240, 30, 125, 252, 127, 1023, 4, 39, 80, 10, 45, 92, 47, 383, 768, 96, 195, 98, 25, 207, 104, 13, 57, 116, 59, 479, 96...
[ "nonn" ]
A193470
[ 0, 0, 1, 0, 3, 3, 0, 1, 5, 6, 0, 7, 2, 14, 10, 0, 2, 9, 5, 18, 15, 0, 1, 3, 30, 7, 33, 21, 0, 3, 6, 9, 34, 12, 39, 28, 0, 15, 4, 11, 11, 69, 15, 60, 36, 0, 4, 17, 13, 13, 21, 75, 22, 68, 45, 0, 1, 5, ...
[ "nonn", "tabl" ]
A289895
[ 0, 1, 5, 6, 14, 15, 19, 20, 30, 31, 35, 36, 44, 45, 49, 50, 55, 56, 60, 61, 69, 70, 74, 75, 85, 86, 90, 91, 92, 96, 97, 99, 100, 104, 105, 106, 110, 111, 121, 122, 126, 127, 135, 136, 140, 141, 145, 146, 147, 151, 15...
[ "nonn" ]
A118812
[ 2, 23, 87178286161, 4.0329146112660565e+26, 5.502622159812089e+57 ]
[ "nonn" ]
A277481
[ 0, 0, 2, 3, 32, 240, 3114, 44065, 777720, 15582168, 357427770, 9151281293, 259607392164, 8070381333872, 272960010908662, 9976300661919344, 391837137436921100, 16458193396472517000, 736145006794621600000, 3.493211783002186e+22, 1.7527828226644977e+24 ]
[ "nonn" ]
A040253
[ 16, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, 2, 3, 6, 3, 2, 32, ...
[ "nonn", "cofr", "easy" ]
A245416
[ 9, 36, 162, 729, 3276, 14742, 66339, 298530, 1343385, 6045228, 27203526, 122415867, 550871406, 2478921327, 11155145967, 50198156856, 225891705852, 1016512676334, 4574307043503, 20584381695759, 92629717630920, 416833729339140, 1875751782026130 ]
[ "nonn", "base" ]
A135486
[ 1, 0, 2, 1, 0, 2, 1, 1, 0, 3, 5, 0, 0, 0, 2, 2, 4, 1, 0, 0, 4, 13, 0, 0, 0, 0, 0, 2, 8, 7, 0, 3, 0, 0, 0, 4, 21, 0, 6, 0, 0, 0, 0, 0, 3, 17, 20, 0, 0, 1, 0, 0, 0, 0, 4, 54, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "tabl" ]
A052811
[ 1, 0, 2, 6, 46, 340, 3308, 36288, 460752, 6551424, 103685232, 1803956880, 34247483664, 704301934752, 15598712592864, 370149922235520, 9369093828260736, 251968378971718660, 7174943434198029000 ]
[ "easy", "nonn" ]
A048995
[ 1, 4, 51, 87, 95, 119, 123, 145, 161, 187, 205, 209, 215, 237, 245, 247, 261, 267, 275, 287, 289, 291, 303, 305, 321, 323, 325, 335, 341, 371, 405, 407, 425, 429, 447, 471, 473, 497, 515, 517, 519, 529, 539, 551, 555, 561, 5...
[ "nonn", "nice" ]
A210450
[ 0, 3, 4, 5, 6, 7, 11, 16, 17, 21, 23, 24, 27, 28, 32, 34, 35, 36, 38, 39, 40, 43, 44, 45, 47, 48, 49, 51, 53, 54, 55, 56, 59, 60, 63, 65, 67, 68, 69, 70, 72, 73, 74, 76, 77, 79, 81, 82, 85, 86, 89, 93, 96, 97, ...
[ "nonn" ]
A336404
[ 0, 1, 2, 3, 2, 1, 6, 6, 2, 2, 4, 10, 2, 12, 13, 7, 12, 7, 17, 2, 19, 5, 21, 19, 5, 12, 24, 26, 9, 16, 29, 15, 21, 19, 26, 3, 22, 35, 16, 31, 38, 27, 34, 3, 9, 3, 41, 6, 13, 27, 48, 3, 37, 3, 24, 46, 54, ...
[ "nonn" ]
A350068
[ 1, 2, 2, 3, 2, 4, 2, 5, 3, 6, 2, 7, 2, 4, 4, 8, 2, 7, 2, 7, 6, 9, 2, 10, 3, 9, 5, 11, 2, 12, 2, 13, 4, 9, 4, 14, 2, 4, 9, 15, 2, 16, 2, 7, 7, 17, 2, 18, 3, 19, 9, 7, 2, 10, 6, 10, 9, 20, 2, 21, 2,...
[ "nonn" ]
A331162
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 50, 52, 53, 54, 55...
[ "nonn", "base" ]
A149563
[ 1, 1, 5, 13, 59, 197, 915, 3325, 15733, 60317, 287687, 1144801, 5494191, 22417979, 108227567, 449660789, 2180772569, 9191846055, 44726277919, 190745199811, 930613377737, 4007049774195, 19594315791963, 85046449592471, 416668387834121, 1820892379707131, 893528367155...
[ "nonn", "walk" ]
A022952
[ 3, 6, 10, 15, 22, 30, 39, 50, 62, 75, 89, 105, 122, 140, 159, 179, 200, 223, 247, 272, 298, 325, 353, 382, 413, 445, 478, 512, 547, 583, 620, 658, 698, 739, 781, 824, 868, 913, 959, 1006, 1054, 1103, 1154, 1206, 1259, 1313, ...
[ "nonn" ]
A356223
[ 2, 6, 15, 79, 68, 121, 162, 445, 416, 971, 836, 987, 2888, 1891, 1650, 5637, 5518, 4834, 9237, 8152, 10045, 21550, 20248, 20179, 29914, 36070, 24237, 53355, 52873, 34206, 103134, 90190, 63755, 147861, 98103, 117467, 209102, 206423, 124954, ...
[ "nonn" ]
A364469
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 16, 17, 18, 19, 28, 29 ]
[ "nonn", "base", "full", "fini" ]
A258033
[ 0, 0, 2, 1, 0, 2, 1, 3, 0, 5, 2, 4, 1, 3, 0, 5, 2, 4, 1, 6, 3, 0, 8, 5, 2, 7, 4, 1, 6, 3, 0, 8, 5, 2, 10, 7, 4, 1, 9, 6, 3, 0, 8, 5, 2, 10, 7, 4, 1, 9, 6, 3, 11, 0, 8, 5, 13, 2, 10, 7, 4, 12, ...
[ "nonn" ]
A217193
[ 6, 24, 119, 588, 2279, 6996, 18043, 40884, 83923, 159404, 284431, 482108, 782799, 1225508, 1859379, 2745316, 3957723, 5586364, 7738343, 10540204, 14140151, 18710388, 24449579, 31585428, 40377379, 51119436, 64143103, 79820444, 98567263, 120846404, 147171171...
[ "nonn", "easy" ]
A297185
[ 0, 0, 0, 0, 1, 2, 6, 10, 21, 38, 72, 128, 244, 446, 836, 1546, 2899, 5428, 10256, 19326, 36672, 69606, 132656, 253232, 484776, 929392, 1785684, 3435846, 6622020, 12779444, 24696034, 47777780, 92537529, 179406010, 348154156, 676210084, 131447493...
[ "nonn" ]
A146370
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 13, 13, 31, 31, 121, 121, 491, 491, 3363, 3363, 25731, 25731, 206631, 206631, 2160127, 2160127 ]
[ "nonn" ]
A079402
[ 1, 1, 4, 1764, 577152576, 491609948246960400, 2.7943904322346204e+30, 2.256950054805412e+47, 4.87587121568323e+68 ]
[ "nonn", "easy" ]
A125162
[ 1, 1, 1, 1, 3, 1, 4, 0, 1, 1, 5, 1, 3, 0, 1, 1, 6, 1, 7, 0, 1, 1, 6, 0, 1, 0, 1, 1, 6, 1, 9, 0, 0, 0, 3, 1, 11, 0, 1, 1, 9, 1, 5, 0, 1, 1, 10, 0, 2, 0, 1, 1, 9, 0, 2, 0, 1, 1, 10, 1, 9, 0, 0, ...
[ "nonn" ]
A333104
[ 10, 22, 98, 118, 230, 266, 1452, 88894, 114214, 1274198, 51675986, 61177358, 82986118 ]
[ "nonn", "more" ]
A058735
[ 1, 1, 1, 1, 1, 3, 1, 1, 3, 7, 1, 1, 3, 8, 20, 1, 1, 3, 8, 22, 55, 1, 1, 3, 8, 23, 63, 162, 1, 1, 3, 8, 23, 65, 188, 477, 1, 1, 3, 8, 23, 66, 196, 564, 1450, 1, 1, 3, 8, 23, 66, 198, 590, 1732, 4446, 1, 1,...
[ "nonn", "tabl" ]
A012906
[ 0, 2, -1, -13, 42, 245, -2490, -4765, 209720, -530035, -22851000, 212068925, 2756074200, -63885256825, -209294612800, 19894322342375, -99845235204000, -6458228568556375, 102934030004208000, 1969133836186414600, -73966351106066970000, -303630429195570200000 ]
[ "sign" ]
A060027
[ 1, 0, 1, 1, 2, 2, 4, 4, 6, 6, 9, 9, 13, 12, 16, 15, 18, 15, 18, 12, 12, 2, -3, -20, -31, -59, -81, -122, -160, -222, -280, -369, -457, -581, -708, -878, -1055, -1286, -1528, -1833, -2158, -2559, -2985, -3504, -4059, -4721, -...
[ "sign", "easy" ]
A098695
[ 1, 1, 4, 96, 18432, 35389440, 815372697600, 263006617337856000, 1.3573666318159813e+24, 1.2609566805846612e+32, 2.342788916482877e+41 ]
[ "nonn" ]
A318118
[ 1, 1, 3, 10, 40, 150, 616, 2456, 10102, 41400, 171526, 712111, 2972115, 12434993, 52195414, 219567909, 925704792, 3909841659, 16541598215, 70085877919, 297347922785, 1263046810334, 5370930049915, 22861883482838, 97402827429118, 415332438952517, 1772380322197432 ]
[ "nonn" ]
A017717
[ 1, 54, 1485, 27720, 395010, 4582116, 45057474, 386206920, 2944827765, 20286591270, 127805525001, 743595781824, 4027810484880, 20448884000160, 97862516286480, 443643407165376, 1913212193400684, 7877932561061640 ]
[ "nonn" ]
A376088
[ 3, 6, 7, 9, 12, 14, 15, 18, 22, 24, 26, 28, 30, 35, 36, 44, 45, 54, 55, 56, 60, 65, 66, 70, 72, 74, 75, 82, 88, 90, 104, 108, 112, 120, 132, 140, 144, 148, 150, 175, 176, 180, 216, 220, 224, 225, 240, 252, 260, 264, ...
[ "nonn", "base" ]
A091021
[ 2, 11, 13, 47, 127, 131, 139, 167, 227, 229, 419, 421, 8419, 15391, 18503, 23053, 31333, 32119, 642049, 771769, 1240081, 2545453, 2951341, 9677999, 11390809, 22436899, 33056171, 63701437, 71298761, 465462769, 989883217, 1490754379, 1775394377, 177539...
[ "nonn", "base" ]
A239961
[ 1, 0, 1, 0, 0, 1, 1, 2, 2, 2, 4, 4, 6, 9, 10, 12, 19, 21, 24, 36, 44, 49, 66, 81, 100, 123, 144, 180, 229, 265, 317, 391, 473, 566, 675, 798, 968, 1154, 1354, 1621, 1926, 2241, 2675, 3170, 3691, 4345, 5113, 5956, 7002, ...
[ "nonn", "easy" ]
A356808
[ 1, 4, 96, 238536576 ]
[ "nonn", "hard", "more" ]
A053778
[ 5, 11, 101, 137, 179, 191, 419, 809, 821, 1019, 1049, 1481, 1871, 1931, 2081, 2111, 2969, 3251, 3359, 3371, 3461, 4217, 4229, 4259, 5009, 5651, 5867, 6689, 6761, 6779, 6947, 7331, 7547, 8219, 8969, 9419, 9431, 9437, 10007, 11057, 11159,...
[ "nonn" ]
A072721
[ 1, 0, 1, 1, 2, 1, 4, 1, 4, 2, 6, 1, 10, 1, 8, 4, 10, 1, 15, 1, 17, 5, 16, 1, 26, 2, 22, 5, 29, 1, 37, 1, 36, 7, 38, 4, 57, 1, 48, 9, 65, 1, 73, 1, 77, 13, 76, 1, 108, 2, 99, 11, 117, 1, 130, 5, 145, 14,...
[ "nonn" ]
A176606
[ 1, 3, 7, 24, 91, 376, 1635, 7377, 34197, 161876, 779125, 3801307, 18757219, 93444662, 469349303, 2374206202, 12084696935, 61848753886, 318082531211, 1643009103729, 8520055528453, 44338931718570, 231488012768833 ]
[ "easy", "nonn" ]
A256850
[ 2, 0, 6, 4, 4, 4, 4, 4, 9, 5, 0, 6, 5, 1, 3, 5, 0, 2, 7, 9, 8, 8, 4, 9, 4, 4, 8, 6, 2, 8, 7, 5, 7, 0, 4, 1, 6, 9, 6, 6, 8, 8, 4, 0, 3, 6, 6, 5, 7, 1, 8, 8, 2, 4, 6, 2, 1, 3, 7, 6, 1, 3, 1, 3...
[ "nonn", "cons", "easy" ]
A091170
[ 0, 2, 18, 150, 1192, 9788, 83010, 720153, 6354987, 56879810, 514749730, 4700977077, 43258170456 ]
[ "nonn", "more" ]
A163247
[ 6, 7, 10, 11, 12, 13, 18, 22, 24, 25, 29, 30, 31, 33, 34, 37, 38, 41, 42, 43, 46, 47, 48, 54, 57, 60, 62, 65, 70, 72, 73, 79, 83, 84, 86, 88, 90, 93, 94, 95, 101, 107, 109, 110, 113, 119, 120, 122, 123, 128, 133, 1...
[ "nonn" ]
A068230
[ 5, 17, 29, 41, 53, 89, 101, 113, 137, 149, 173, 197, 233, 257, 269, 281, 293, 317, 353 ]
[ "dead" ]
A345383
[ 0, 0, 1, 7, 63, 1023, 32760, 1048544, 33554304, 1073741312, 34359736320, 1099511619584, 35184370221056, 1125899873681408, 36028796752101376 ]
[ "nonn", "more" ]
A228277
[ 1, 1, 13, 133, 3631, 172082, 16566199, 3057290265, 1105411581741, 776531523355217, 1063228770141145300, 2.8340134899923456e+21, 1.4712337761578682e+25, 1.4872786525744227e+29 ]
[ "nonn" ]
A008090
[ 1, 4, 11, 24, 42, 63, 93, 127, 160, 206, 262, 308, 356, 429, 510, 572, 634, 731, 846, 919, 983, 1117, 1263, 1340, 1424, 1589, 1753, 1846, 1944, 2129, 2334, 2442, 2535, 2758, 3001, 3105, 3206, 3468, 3748, 3867, 3959, 4244, 4583, 47...
[ "nonn" ]
A013914
[ 1, 1, 1, 2, 3, 4, 8, 12, 16, 33, 62, 67, 186, 316, 280, 1040, 1963, 1702, 6830, 10751, 8679, 45838, 88255, 56292, 264838, 624778, 348817, 2208496, 4526585 ]
[ "nonn", "nice", "more" ]
A350359
[ 1, 2, 3, 4, 9, 8, 15, 14, 5, 7, 25, 21, 10, 27, 16, 33, 20, 11, 26, 77, 6, 35, 12, 49, 18, 91, 22, 13, 24, 65, 28, 55, 32, 45, 34, 39, 17, 57, 68, 19, 40, 133, 30, 119, 36, 161, 38, 23, 44, 69, 50, 51, 52, 63, ...
[ "nonn" ]
A230360
[ 2, 1, 0, 3, 6, 3, 0, 5, 12, 11, 0, 5, 12, 0, 0, 5, 0, 0, 0, 48, 14, 0, 61, 188, 83, 0, 81, 232, 268, 0, 0, 650, 0, 0, 622, 299, 0, 0, 0, 501, 0, 0, 2655, 602, 0, 6429, 8990, 7856, 0, 26187, 17898, 3744, 0, 4030...
[ "nonn", "base", "uned" ]
A044237
[ 50, 114, 178, 242, 306, 370, 400, 434, 498, 562, 626, 690, 754, 818, 882, 912, 946, 1010, 1074, 1138, 1202, 1266, 1330, 1394, 1424, 1458, 1522, 1586, 1650, 1714, 1778, 1842, 1906, 1936, 1970, 2034, 2098, 2162, 2226, 2290, 2354 ]
[ "nonn", "base" ]
A290658
[ 1, 1, 1, 1, 3, 3, 3, 3, 3, 11, 15, 15, 15, 15, 15, 15, 15, 15, 15, 239, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 1023, 2047, 59391, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, ...
[ "nonn", "easy" ]
A352911
[ 1, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 4, 2, 3, 3, 2, 4, 1, 1, 5, 5, 1, 1, 6, 2, 5, 3, 4, 4, 3, 5, 2, 6, 1, 1, 7, 3, 5, 5, 3, 7, 1, 1, 8, 2, 7, 4, 5, 5, 4, 7, 2, 8, 1, 1, 9, 3, 7, 7, 3, 9, 1, 1, 1...
[ "nonn", "tabf", "easy", "look" ]
A209553
[ 7, 20, 20, 61, 105, 61, 191, 562, 562, 191, 603, 3051, 5075, 3051, 603, 1909, 16582, 46515, 46515, 16582, 1909, 6049, 90186, 425803, 723636, 425803, 90186, 6049, 19173, 490547, 3901194, 11226644, 11226644, 3901194, 490547, 19173, 60777, 26683...
[ "nonn", "tabl" ]
A093074
[ 2, 3, 3, 5, 5, 7, 7, 7, 5, 11, 11, 13, 13, 13, 7, 17, 17, 19, 19, 19, 11, 23, 23, 23, 13, 13, 13, 29, 29, 31, 31, 31, 17, 17, 17, 37, 37, 37, 19, 41, 41, 43, 43, 43, 23, 47, 47, 47, 7, 17, 17, 53, 53, 53, 11,...
[ "nonn" ]
A176924
[ 41, 53, 101, 293, 1061, 4133, 16421, 1048613, 268435493, 4503599627370533, 18446744073709552000, 1.888946593147858e+22, 3.1691265005705735e+29, 1.393796574908164e+42, 2.3945242826029513e+52 ]
[ "nonn" ]
A256622
[ 9632552297, 23971039429, 32460766253, 55325366053, 75883883641, 87824771197, 91754975491, 91989527023, 97696323983 ]
[ "nonn", "base", "hard", "more" ]
A055155
[ 1, 2, 2, 4, 2, 4, 2, 6, 5, 4, 2, 8, 2, 4, 4, 10, 2, 10, 2, 8, 4, 4, 2, 12, 7, 4, 8, 8, 2, 8, 2, 14, 4, 4, 4, 20, 2, 4, 4, 12, 2, 8, 2, 8, 10, 4, 2, 20, 9, 14, 4, 8, 2, 16, 4, 12, 4, 4, 2, 16, 2, ...
[ "easy", "nonn", "mult" ]
A064242
[ 378, 576, 1236, 3018, 7506, 9090, 18396, 26250, 27966, 28098, 28428, 31068, 32190, 32586, 34500, 35490, 40506, 42156, 46446, 47700, 48888, 50670, 53376, 55290, 55818, 58788, 65256, 65718, 68226, 73308, 74760, 75618, 77730, 86178 ]
[ "nonn" ]
A259374
[ 0, 1, 2, 4, 26, 52, 1066, 1667, 2188, 32152, 67834, 423176, 437576, 14752936, 26513692, 27711772, 33274388, 320785556, 1065805109, 9012701786, 9256436186, 12814126552, 18814619428, 201241053056, 478999841578, 670919564984, 18432110906024, 158312796835916, 2787...
[ "nonn", "base" ]
A138122
[ 7, 11, 37, 41, 67, 71, 97, 101, 127, 131, 277, 281, 307, 311, 397, 401, 457, 461, 487, 491, 757, 761, 877, 881, 907, 911, 937, 941, 967, 971, 1087, 1091, 1297, 1301, 1447, 1451, 1567, 1571, 1597, 1601, 1867, 1871, 2137, 2141, 23...
[ "nonn" ]
A169216
[ 1, 11, 110, 1100, 11000, 110000, 1100000, 11000000, 110000000, 1100000000, 11000000000, 110000000000, 1100000000000, 11000000000000, 110000000000000, 1100000000000000, 11000000000000000, 110000000000000000 ]
[ "nonn" ]
A183424
[ 1, 9, 256, 62694, 16777215 ]
[ "nonn" ]
A293652
[ 5, 211, 4327, 4547, 25523, 81611, 966109, 1654111, 3851587, 1895479, 66407189, 134965049, 129312889, 425845151, 35914507, 504365461, 2400397969, 8490141637, 8429770031, 20416021309, 23555107819, 23912414437 ]
[ "nonn", "more", "hard" ]
A045511
[ 362880, 3628800, 39916800, 355687428096000, 3.0488834461171387e+29, 3.7199332678990125e+41 ]
[ "nonn", "base" ]
A105180
[ 1, 2, 3, 5, 9, 25, 34, 36, 42, 52, 176, 262, 269, 283, 284, 289, 372, 392, 486, 596, 999, 1022, 1097, 1105, 2329, 2663, 3037, 3363, 3853, 5167, 6305, 7164, 7283, 8874, 10974, 14450, 14763, 15016, 15320, 24869, 27192, 35164, 37595, ...
[ "nonn", "more" ]