id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A056585
[ 0, 1, 1, 256, 6561, 390625, 16777216, 815730721, 37822859361, 1785793904896, 83733937890625, 3936588805702081, 184884258895036400, 8686550888106662000, 408066367122340250000, 1.91707312997281e+22 ]
[ "nonn", "easy" ]
A074886
[ 14, 110, 274, 435, 1298, 4608, 4646, 5384, 9214, 10154, 10778, 11912, 13035, 13844, 15026, 18698, 21346, 22958, 25642, 26846, 27466, 32078, 34546, 41164, 49570, 77374, 80438, 85875 ]
[ "nonn" ]
A216334
[ 1, 5, 42, 726, 15144, 502658, 18378580, 950376664, 52183667212, 3788883495864, 286529186194664, 27420871472654064, 2701657928740913700, 326508788572113340000, 4.031683323631153e+22, 5.96542264894261e+24, 8.970571714502985e+26, 1.5872359738694466e+29 ]
[ "nonn" ]
A114706
[ 1, 1, 2, 1, 8, 2, 1, 22, 20, 2, 1, 52, 106, 36, 2, 1, 114, 420, 310, 56, 2, 1, 240, 1410, 1840, 706, 80, 2, 1, 494, 4260, 8714, 5832, 1382, 108, 2, 1, 1004, 11978, 35484, 36898, 15100, 2442, 140, 2, 1, 2026, 31988, 12975...
[ "nonn", "tabl" ]
A153327
[ 1, 4, 5, 7, 8, 10, 13, 15, 16, 19, 20, 21, 22, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 39, 40, 43, 45, 46, 49, 50, 52, 54, 55, 56, 57, 58, 59, 60, 61, 64, 65, 67, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80,...
[ "nonn", "easy" ]
A023058
[ 1012, 10012, 10120, 10122, 10212, 100012, 100120, 100122, 100212, 101200, 101220, 101222, 102120, 102122, 102212, 1000012, 1000120, 1000122, 1000212, 1001200, 1001220, 1001222, 1002120, 1002122, 1002212, 1012000, 1012200, 1012220, 1012222 ]
[ "nonn", "base" ]
A161279
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3, 3, 3, 5, 4, 5, 6, 6, 6, 8, 7, 8, 9, 11, 10, 12, 12, 14, 14, 15, 15, 18, 17, 1...
[ "nonn" ]
A099939
[ 19, 15, 18, 18, 17, 18, 19, 16, 20, 19, 15, 11, 14, 14, 13, 14, 15, 12, 16, 15, 18, 14, 17, 17, 16, 17, 18, 15, 19, 18, 18, 14, 17, 17, 16, 17, 18, 15, 19, 18, 17, 13, 16, 16, 15, 16, 17, 14, 18, 17, 18, 14, 17, ...
[ "easy", "nonn", "base" ]
A384989
[ 1, 1, 1, 1, 2, 3, 4, 4, 6, 10, 6, 8, 12, 11, 9, 10, 42, 15, 16, 52, 60, 120, 18, 30, 140, 99, 95, 28, 90, 660, 30, 28, 30, 30, 546, 336, 48, 420, 24, 765, 1680, 60, 308, 400, 66, 462, 418, 4830, 252, 1430, 468, 49,...
[ "nonn" ]
A344225
[ 1, 3, 4, 8, 6, 17, 8, 23, 17, 35, 12, 57, 14, 61, 44, 74, 18, 123, 20, 121, 72, 137, 24, 215, 47, 187, 96, 217, 30, 387, 32, 261, 152, 311, 100, 488, 38, 385, 204, 441, 42, 813, 44, 505, 294, 557, 48, 961, 93, 739, 3...
[ "nonn" ]
A079832
[ 15, 16, 29, 104, 114, 124, 134, 135, 144, 145, 155, 165, 166, 175, 176, 185, 186, 195, 196, 207, 208, 217, 218, 227, 228, 237, 238, 239, 247, 248, 249, 258, 259, 268, 269, 278, 279, 288, 289, 299, 1004, 1013, 1023, 1033, 1043, ...
[ "base", "nonn" ]
A061690
[ 0, 0, 6, 72, 650, 5400, 43757, 353192, 2862330, 23352300, 191891117, 1587587760, 13215894133, 110619113423, 930376519256, 7858437064232, 66627124896218, 566791391339532, 4836144006188165, 41375938305568770, 354859541163656060 ]
[ "nonn", "changed" ]
A094998
[ 2, 3, 25, 301, 25201, 83161, 7207201, 49008961, 698377681, 2248776129601, 39594522567601, 2599263952084801, 160287943711896000, 4381203794791824000, 386203114510899300000, 1.3015986917833185e+23 ]
[ "nonn" ]
A359451
[ 2, 0, 8, 6, 3, 7, 7, 6, 6, 5, 0, 0, 5, 9, 8, 8, 7, 1, 6, 0, 8, 9, 7, 5, 5, 8, 5, 6, 7, 3, 4, 1, 3, 2, 7, 7, 2, 6, 9, 2, 0, 2, 2, 0, 9, 6, 9, 2, 2, 3, 9, 5, 1, 6, 9, 5, 1, 2, 3, 8, 3, 8, 5, 7...
[ "nonn", "cons", "base" ]
A160440
[ 97, 397, 499, 1297, 1597, 1999, 2797, 3697, 4999, 6199, 6997, 7699, 9199, 10099, 10597, 12097, 13099, 16699, 18397, 20899, 21397, 21499, 21799, 23197, 23599, 25999, 26497, 27697, 27799, 27997, 32299, 32797, 33199, 34297, 35797, 38197, 38299, ...
[ "nonn" ]
A208364
[ 2, 16, 114, 1953, 67396, 4503765, 570085195, 146860432968, 74897509230292, 75596512299763500, 152131706172601340000, 6.107357434471366e+23, 4.881221988286285e+27, 7.776981291456514e+31 ]
[ "nonn" ]
A036313
[ 4, 8, 16, 32, 58, 64, 116, 128, 232, 256, 458, 464, 512, 841, 916, 928, 1024, 1682, 1832, 1856, 1858, 2048, 3364, 3664, 3712, 3716, 4096, 5998, 6641, 6728, 7328, 7424, 7432, 8192, 11996, 13282, 13456, 14656, 14848, 14864, 16384, 19858...
[ "nonn", "easy", "base" ]
A058016
[ 13, 20, 30, 8, 11, 12, 9, 24, 18, 3, 29, 8, 33, 14, 10, 25, 1, 26, 0, 12, 30, 1, 2, 1, 36, 0, 21, 18, 16, 17, 32, 1, 31, 9, 26, 6, 31, 2, 35, 6, 9, 26, 32, 2, 12, 8, 6, 33, 36, 18, 27, 20, 22, 25, 8, 2, 2...
[ "nonn" ]
A144527
[ 0, 1, 4, 9, 21, 45, 104, 233, 549, 1299, 3157, 7739, 19318, 48627, 123865, 317953, 823063, 2144503, 5623754, 14828072, 39299895, 104636888, 279793448, 751065458, 2023443030, 5469566583, 14830871800, 40330829028, 109972410219, 300628862478, 823779631719 ]
[ "nonn" ]
A328347
[ 1, 1, 1, 3, 4, 3, 7, 15, 15, 7, 19, 52, 72, 52, 19, 51, 175, 300, 300, 175, 51, 141, 576, 1185, 1480, 1185, 576, 141, 393, 1869, 4473, 6685, 6685, 4473, 1869, 393, 1107, 6000, 16380, 28392, 33880, 28392, 16380, 6000, 1107, 313...
[ "nonn", "tabl", "walk" ]
A126977
[ 2, 9, 12, 36, 6, 1, 3, 4, 18 ]
[ "fini", "full", "nonn", "tabf" ]
A358845
[ 0, 2, 4, 5, 7, 9, 10, 12, 14, 15, 17, 19, 20, 22, 24, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 46, 48, 51, 53, 56, 58, 61, 63, 66, 68, 70, 72, 74, 75, 77, 79, 80, 82, 84, 85, 87, 89, 90, 92, 94, 95, 97, 99, 100,...
[ "nonn" ]
A159728
[ 36, 2610, 129800, 5748750, 241987500, 9885006250, 395426250000, 15570077343750, 605504070312500, 23311913238281250, 890091272109375000, 33749294301074220000, 1.2720887865615235e+21, 4.770332950396728e+22, 1.7809243015267577e+24, 6.622812246328363e+25 ]
[ "nonn", "easy" ]
A155280
[ 1, 7, 19, 37, 168, 718, 3579, 25444, 183468, 1516279, 16609058, 206526436, 3056554913, 55553877912 ]
[ "nonn" ]
A097024
[ 1482, 1878, 1890, 2142, 2178 ]
[ "nonn", "more" ]
A377654
[ 1, 9, 25, 49, 81, 121, 169, 289, 361, 441, 529, 625, 729, 841, 961, 1089, 1369, 1521, 1681, 1849, 2209, 2401, 2601, 2809, 3025, 3249, 3481, 3721, 4225, 4489, 4761, 5041, 5329, 6241, 6561, 6889, 7225, 7569, 7921, 8649, 9025, 9409, 10...
[ "nonn" ]
A328909
[ 0, 9, 2, 5, 8, 3, 6, 1, 4, 7, 10, 13, 28, 31, 14, 11, 26, 23, 44, 19, 22, 43, 40, 17, 34, 37, 18, 15, 32, 29, 52, 25, 46, 21, 42, 69, 20, 39, 16, 33, 12, 27, 24, 45, 74, 41, 68, 103, 38, 35, 60, 93, 30, 53, 8...
[ "nonn", "fini", "full" ]
A171330
[ 25, 624, 15524, 381628, 9550720, 238863948, 5954344678, 148566446596 ]
[ "nonn" ]
A075514
[ 1, 3, 154, 7941, 429036, 24123105, 1399303662, 83176893681, 5041470373624, 310449199290489, 19369215839341710, 1221826010437625600, 77798300823672270000, 4.993767938470071e+21, 3.227956064695648e+23 ]
[ "nonn" ]
A300409
[ 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 2, 1, 1, 1, 2, 1, 2, 1, 3, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 1, 2, 2, 1, 1, 3, 1, 2, 1, 3...
[ "nonn" ]
A091337
[ 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0, -1, 0, 1, 0, 1, 0, -1, 0...
[ "sign", "mult", "easy" ]
A116540
[ 1, 1, 3, 10, 41, 192, 1025, 6087, 39754, 282241, 2159916, 17691161, 154192692, 1423127819, 13851559475, 141670442163, 1517880400352, 16989834719706, 198191448685735, 2404300796114642, 30273340418567820, 394948562421362370, 5330161943597342000, 74307324695105370000 ]
[ "nonn" ]
A350769
[ 27, 28, 30, 37, 38, 41, 42, 57, 18362, 2914913, 5516281, 6618242, 7224834, 9018353, 9339114, 10780554, 16831081, 17800553, 18164161, 18646202, 20239913, 29743561, 32464433, 32915513, 42464514, 43502033, 45652314, 51755761, 53464314, 62198634, 69899754 ]
[ "nonn" ]
A383517
[ 6, 21, 30, 36, 42, 60, 66, 70, 78, 84, 90, 102, 105, 110, 114, 120, 126, 132, 138, 140, 150, 154, 156, 165, 168, 174, 180, 186, 198, 204, 210, 220, 222, 228, 231, 234, 238, 240, 246, 252, 258, 264, 270, 273, 276, 280, 282, ...
[ "nonn" ]
A082812
[ 4, 5, 6, 9, 10, 14, 18, 21, 22, 25, 29, 34, 36, 37, 42, 45, 46, 56, 60, 61, 70, 76, 77, 86, 88, 90, 104, 105, 106, 122, 126, 128, 129, 133, 136, 142, 172, 177, 178, 209, 210, 212, 245, 246, 257, 258, 270, 304, 306, 308...
[ "easy", "nonn" ]
A168338
[ 1, 3, 4, 7, 6, 12, 8, 15, 13, 9, 2, 18, 4, 14, 14, 21, 8, 29, 10, 15, 13, 6, 4, 30, 11, 12, 20, 26, 10, 26, 4, 24, 8, 14, 18, 41, 8, 20, 16, 27, 5, 29, 5, 14, 28, 12, 8, 44, 17, 19, 16, 21, 6, 41, 12, 40, ...
[ "base", "easy", "nonn" ]
A137615
[ 4, 1, 9, 8, 6, 0, 0, 4, 5, 9, 6, 5, 0, 8, 0, 2, 2, 3, 3, 4, 2, 1, 3, 0, 0, 0, 0, 9, 6, 8, 3, 3, 8, 2, 7, 9, 1, 6, 5, 0, 7, 0, 3, 3, 5, 0, 8, 8, 6, 5, 1, 2, 1, 8, 5, 3, 1, 9, 4, 5, 1, 2, 3, 5...
[ "cons", "easy", "nonn" ]
A225073
[ 0, 0, 3, 3, 3, 12, 9, 35, -2, 48, 65, 72, 65, 72, 73, 183, 357, 500, 357, 500, 480, 1250, 2201, 2201, -6, 4347, 4426, 4226, 9911, 13005, 20871, 22511 ]
[ "sign", "more", "hard" ]
A117835
[ 2, 3, 5, 7, 11, 13, 17, 31, 71, 113, 131, 151, 211, 311, 1117, 1151, 1171, 1511, 2111, 11113, 11117, 11131, 11171, 11311, 111121, 111211, 112111, 113111, 131111, 311111, 511111, 1111151, 1111211, 1111711, 1117111, 1171111, 11111117, 11111131,...
[ "base", "nonn" ]
A211195
[ 1, 2, 6, 32, 240, 2232, 24080, 290048, 3809088, 53691840, 803569184, 12670027776, 209244552192, 3603569846912, 64493380379520, 1196207964360704, 22942371004144640, 454160262238341100, 9265017815023565000, 194524772488764720000, 4.1985216451399715e+21 ]
[ "nonn" ]
A092559
[ 3, 5, 6, 7, 11, 12, 13, 17, 19, 20, 23, 28, 31, 32, 40, 43, 61, 64, 79, 92, 101, 104, 127, 128, 148, 167, 191, 199, 256, 313, 347, 356, 596, 692, 701, 1004, 1228, 1268, 1709, 2617, 3539, 3824, 5807, 10501, 10691, 11279, 1239...
[ "nonn" ]
A160172
[ 0, 1, 4, 9, 18, 27, 36, 49, 74, 95, 104, 117, 142, 167, 192, 229, 302, 359, 368, 381, 406, 431, 456, 493, 566, 627, 652, 689, 762, 835, 908, 1017, 1234, 1399, 1408, 1421, 1446, 1471, 1496, 1533, 1606, 1667, 1692, 1729, 1802, 1...
[ "nonn", "nice" ]
A204649
[ 132, 200, 434, 938, 1918, 3702, 6780, 11868, 19969, 32450, 51134, 78404, 117324, 171774, 246604, 347804, 482695, 660138, 890766, 1187236, 1564506, 2040134, 2634604, 3371676, 4278765, 5387346, 6733390, 8357828, 10307048, 12633422 ]
[ "nonn" ]
A321962
[ 1, 51, 53, 7955, 7959, 7961, 7985, 7987, 8245, 8805, 8807, 8809, 8813, 8815, 8817, 8819, 8821, 8825, 8829, 8847, 8851, 8853, 8855, 8857, 8859, 8873, 8877, 8879, 8969, 8973, 8975, 9063, 9079, 9081, 9083, 9089, 9091, 9093, 9095, 9097, 916...
[ "nonn" ]
A111675
[ 1, 31, 331, 15331, 7515331, 5257515331, 78755257515331, 12600078755257516000, 2.5200001260007875e+26, 3.0240000252000012e+34, 1.512000003024e+43 ]
[ "base", "nonn" ]
A104092
[ 7, 47, 337, 2399, 16787, 117643, 823541, 5764799, 40353601, 282475241, 1977326699, 13841287199, 96889010371, 678223072817, 4747561509941, 33232930569577, 232630513987171, 1628413597910399, 11398895185373052 ]
[ "easy", "nonn" ]
A165966
[ 36, 120, 276, 300, 2556, 3240, 5460, 8256, 12720, 23436, 26796, 34980, 41616, 46056, 56616, 59340, 103740, 122760, 139656, 147696, 157080, 185136, 195000, 231540, 277140, 333336, 353220, 386760, 401856, 516636, 609960, 860016, 1001820 ]
[ "nonn" ]
A365694
[ 1, 0, 0, 1, 1, 1, 3, 6, 10, 20, 42, 84, 170, 354, 740, 1549, 3269, 6945, 14811, 31711, 68177, 147091, 318313, 690837, 1503351, 3279445, 7169907, 15708485, 34482475, 75830981, 167042763, 368548926, 814341362, 1801867812, 3992172298, 8855912464, ...
[ "nonn" ]
A389296
[ 1, 4, 8, 16, 32, 64, 112, 144, 216, 288, 640, 432, 800, 1152, 864, 1296, 2808, 1728, 5200, 2592, 3456, 4320, 7344, 5184, 6048, 9072, 8640, 10368, 16848, 10800, 15120, 19008, 18144, 25200, 24192, 25920, 21600, 30240, 37800, 32400, 45360,...
[ "nonn" ]
A160152
[ 1, 50, 1042, -93700, -9242708, 84323000, 71595491320, 2842116962000, -588597736311920, -62580339060364000, 4594562542866814500, 1.1421494706434478e+21, -1.6580120530325575e+22, -2.081205316489404e+25, -7.263430537129112e+26 ]
[ "sign", "frac" ]
A042960
[ 2, 4, 9, 15, 16, 18, 21, 22, 27, 28, 30, 31, 34, 35, 36, 41, 44 ]
[ "nonn" ]
A020549
[ 2, 2, 5, 37, 577, 14401, 518401, 25401601, 1625702401, 131681894401, 13168189440001, 1593350922240001, 229442532802560000, 38775788043632640000, 7.600054456551997e+21, 1.7100122527241995e+24, 4.3776313669739506e+26 ]
[ "nonn" ]
A303410
[ 0, 1, 0, 1, 3, 0, 2, 7, 10, 0, 3, 10, 28, 23, 0, 5, 27, 42, 119, 61, 0, 8, 45, 100, 168, 541, 162, 0, 13, 98, 290, 547, 902, 2327, 421, 0, 21, 193, 730, 2079, 4013, 3256, 10384, 1103, 0, 34, 379, 1700, 6322, 29411, 2...
[ "nonn", "tabl" ]
A374376
[ 2, 23, -1, 223, 22, -1, 2237, 235, 27, -1, 22273, 2227, 222, 132, -1, 222323, 22223, 2222, 225, 32, -1, 2222273, 222223, 22222, 2223, 252, 729, -1, 22222223, 2222557, 222227, 22225, 2322, 352, 192, -1, 222222227, 22222237, 2222222, 222225...
[ "sign", "base", "tabl" ]
A194099
[ 3, 5, 7, 11, 17, 19, 29, 31, 41, 49, 71, 161, 251, 449, 769, 881, 1079, 1429, 3431, 4159, 4801, 6049, 8749, 19601, 24751, 246401, 388961, 1267111 ]
[ "nonn", "more" ]
A314477
[ 1, 5, 8, 14, 17, 22, 25, 34, 35, 44, 42, 51, 51, 62, 60, 74, 68, 79, 78, 90, 85, 103, 94, 108, 104, 119, 110, 132, 119, 137, 131, 147, 136, 161, 144, 165, 158, 176, 161, 191, 169, 193, 184, 205, 187, 220, 195, 221, 210, ...
[ "nonn" ]
A131684
[ 829440, 3053435, 40040448, 2673065934, 323958835200, 24350583830265, 971969903106048, 23061845117771260, 365309311365605400, 4216355578004499000, 37787143366734760000, 275548505246977520000, 1.6933986097389558e+21, 9.010265266941299e+21, 4.239338314054352e+22 ]
[ "nonn", "easy" ]
A130466
[ 1, 1, 2, 1, 3, 5, 1, 2, 3, 4, 1, 5, 7, 11, 13, 1, 5, 7, 11, 13, 17, 1, 3, 5, 7, 9, 11, 13, 1, 2, 4, 7, 8, 11, 13, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 1, 5, 7, 11, 13,...
[ "nonn", "tabl" ]
A185374
[ 1, 1, 0, 1, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "nonn", "base", "fini", "full" ]
A153006
[ 0, 1, 3, 6, 9, 13, 20, 28, 33, 37, 44, 53, 63, 78, 100, 120, 129, 133, 140, 149, 159, 174, 196, 217, 231, 246, 269, 297, 332, 384, 448, 496, 513, 517, 524, 533, 543, 558, 580, 601, 615, 630, 653, 681, 716, 768, 832, 881, ...
[ "nonn" ]
A386963
[ 5, 4, 4, 3, 2, 4, 2, 3, 4, 3, 2, 3, 2, 4, 2, 3, 4, 2, 3, 3, 2, 3, 2, 2, 3, 4, 4, 3, 2, 2, 2, 2, 2, 3, 3, 2, 4, 2, 2, 2, 4, 2, 3, 2, 3, 3, 2, 3, 2, 4, 2, 2, 2, 4, 4, 2, 2, 2, 2, 3, 2, 2, 2, 2...
[ "nonn", "easy" ]
A170196
[ 1, 43, 1806, 75852, 3185784, 133802928, 5619722976, 236028364992, 9913191329664, 416354035845888, 17486869505527296, 734448519232146400, 30846837807750152000, 1.2955671879255062e+21, 5.441382189287126e+22 ]
[ "nonn" ]
A355113
[ 1, 2, 13, 133, 1779, 29565, 589705, 13728695, 365295695, 10934634985, 363678872325, 13305294463275, 531030788556475, 22960273845453724, 1069101897816615400, 53336480697298240000, 2.838300249311563e+21, 1.604801248204254e+23, 9.607441647405962e+24 ]
[ "nonn" ]
A034244
[ 0, 26, 10164, 2097080, 311400852, 37593032352, 3874477609666, 349607878149545, 28080454247154740, 2032851550702238200, 133978506596448850000, 8.10558268347463e+21 ]
[ "nonn", "more" ]
A290234
[ 1, 2, 7, 12, 31, 56, 127, 240, 511, 992, 2047, 4032, 8191, 16256, 32767, 65280, 131071, 261632, 524287, 1047552, 2097151, 4192256, 8388607, 16773120, 33554431, 67100672, 134217727, 268419072, 536870911, 1073709056, 2147483647, 4294901760, 8589934591 ]
[ "nonn", "easy" ]
A258506
[ 10762, 62096, 425880, 3064020, 21229200, 147424970, 1030931222, 7213265988, 50406135414, 352268263599, 2462421098294, 17213808196491, 120330118364382, 841144197827542, 5879904189348622, 41102758742106080, 287323364592421820 ]
[ "nonn" ]
A233800
[ 812933550972, 4668375990645847, 24940318640151912000, 1.323182988483768e+23, 6.963357505766e+26, 3.660632711048616e+30, 1.9226671451146536e+34 ]
[ "nonn" ]
A289600
[ 1, 1, 1, 2, 9, 33, 113, 381, 1291, 4425, 15357 ]
[ "nonn", "more" ]
A348010
[ 1, 2, 6, 14, 40, 96, 268, 664, 1820, 4588, 12464, 31712, 85704, 219376, 590640, 1518652, 4077112, 10518364, 28177388, 72883016, 194910964, 505202708, 1349189968, 3503014492, 9344407884, 24296044256, 64748290040, 168550939272 ]
[ "nonn", "walk" ]
A358646
[ 2, 1, 3, 6, 2, 9, 4, 3, 6, 1, 1, 1, 9, 8, 9, 0, 6, 1, 8, 8, 3, 4, 4, 6, 4, 2, 4, 2, 9, 1, 6, 3, 5, 3, 1, 3, 6, 1, 5, 1, 0, 0, 0, 2, 6, 8, 7, 2, 0, 5, 1, 0, 5, 0, 8, 2, 4, 1, 3, 6, 0, 0, 1, 8...
[ "nonn", "cons" ]
A045679
[ 13, 21, 37, 45, 48, 61, 69, 85, 93, 109, 117, 120, 132, 133, 141, 157, 165, 181, 189, 205, 208, 213, 229, 237, 241, 252, 253, 261, 277, 285, 300, 301, 309, 325, 328, 333, 340, 349, 357, 360, 373, 381, 397, 405, 421, 429, 445...
[ "nonn" ]
A170005
[ 1, 44, 1892, 81356, 3498308, 150427244, 6468371492, 278139974156, 11960018888708, 514280812214444, 22114074925221092, 950905221784507000, 40888924536733800000, 1.7582237550795534e+21, 7.56036214684208e+22 ]
[ "nonn" ]
A152295
[ 17, 71, 83, 107, 191, 227, 251, 263, 431, 443, 479, 503, 587, 827, 839, 911, 983, 1091, 1151, 1163, 1187, 1619, 1667, 1847, 1907, 2087, 2243, 2459, 2591, 3023, 3467, 4463, 4871, 4943, 5471, 5519, 5651, 5807, 5903, 6131, 6203, 6299, ...
[ "nonn" ]
A328912
[ 0, 1, 2, 3, 1, 2, 3, 2, 4, 2, 1, 2, 11, 2, 1, 11, 1, 1, 134, 2, 2, 2, 1, 4, 1, 1, 3, 1, 7, 1, 13, 1, 3, 5, 1, 1, 1, 8, 1, 3, 4, 1, 1, 1, 3, 4, 1, 3, 1, 4, 1, 4, 1, 3, 40, 1, 1, 5, 4, 3, 3, 1, ...
[ "nonn", "cofr" ]
A358136
[ 1, 2, 1, 2, 3, 1, 3, 4, 1, 2, 3, 2, 4, 1, 4, 5, 1, 2, 4, 6, 1, 5, 2, 5, 1, 2, 3, 4, 7, 1, 3, 5, 8, 1, 2, 5, 2, 6, 1, 6, 9, 1, 2, 3, 5, 3, 6, 1, 7, 2, 4, 6, 1, 2, 6, 10, 1, 3, 6, 11, 1, 2, 3, ...
[ "nonn", "tabf" ]
A188614
[ 3, 2, 6, 1, 9, 7, 2, 6, 2, 7, 3, 9, 5, 6, 6, 8, 5, 6, 1, 0, 5, 8, 0, 5, 5, 1, 0, 3, 0, 0, 3, 2, 7, 4, 6, 5, 2, 2, 1, 4, 5, 0, 5, 1, 2, 7, 1, 0, 4, 2, 3, 3, 0, 4, 5, 4, 0, 6, 8, 7, 5, 2, 0, 0...
[ "nonn", "cons" ]
A339849
[ 1, 1, 1, 1, 4, 1, 1, 13, 13, 1, 1, 44, 80, 44, 1, 1, 148, 549, 549, 148, 1, 1, 498, 3851, 7104, 3851, 498, 1, 1, 1676, 26499, 104100, 104100, 26499, 1676, 1, 1, 5640, 183521, 1475286, 3292184, 1475286, 183521, 5640, 1, 1, 18...
[ "nonn", "tabl" ]
A058904
[ 42, 44, 51, 52, 60, 105, 109, 116, 124, 173, 177, 178, 181, 201, 205, 209, 210, 213, 214, 217, 233, 237, 241, 242, 245, 249, 250, 251, 254, 255, 269, 273, 277, 278, 282, 285, 287, 290, 298, 299, 300, 308, 336, 343, 348, 352, ...
[ "nonn", "base" ]
A048165
[ 1, 0, -1, -1, 1, 0, 0, -1, 1, 0, 1, -2, 1, -1, 2, -2, 2, -3, 3, -3, 4, -4, 5, -6, 6, -6, 8, -9, 9, -11, 12, -13, 14, -16, 19, -19, 21, -25, 26, -28, 32, -36, 38, -41, 46, -50, 55, -60, 65, -70, 77, -85, 91, -99...
[ "sign" ]
A104333
[ 59575553, 65636159, 73716967, 79777573, 83817977, 89878583, 97959391, 109107105103, 137135133131, 143141139137, 157155153151, 163161159157, 197195193191, 203201199197, 223221219217, 227225223221, 235233231229 ]
[ "base", "nonn" ]
A369594
[ 1, 3, 12, 58, 318, 1887, 11772, 75969, 502554, 3389056, 23211312, 161015058, 1128976523, 7988381001, 56968671948, 409046328954, 2954644519365, 21455293440345, 156534285598068, 1146881543952792, 8434926025730955, 62250461094154370, 460859182211975200 ]
[ "nonn" ]
A132505
[ 10, 139, 26137, 708454417, 509884217847907700, 6.616899159270904e+35, 5.013699808156833e+71 ]
[ "frac", "nonn" ]
A284315
[ 1, 0, -1, 0, 0, -1, 0, 1, -1, 0, 1, -1, 0, 2, -1, -1, 2, -1, -1, 3, -1, -2, 3, -1, -3, 4, 0, -4, 4, 0, -5, 5, 1, -7, 5, 2, -8, 6, 4, -10, 5, 5, -12, 6, 8, -14, 5, 10, -16, 5, 14, -19, 3, 17, -21, 2, 22, ...
[ "sign", "look" ]
A238433
[ 1, 1, 2, 2, 4, 5, 6, 8, 13, 12, 19, 23, 29, 35, 45, 52, 68, 80, 98, 111, 141, 163, 198, 230, 283, 320, 376, 443, 517, 585, 719, 799, 932, 1085, 1254, 1417, 1668, 1861, 2138, 2449, 2804, 3166, 3666, 4083, 4662, 5277, 5960, ...
[ "nonn" ]
A052808
[ 0, 2, 5, 24, 169, 1572, 18208, 252676, 4088138, 75571648, 1571427096, 36304942704, 922615912656, 25577663099232, 768176940800592, 24845381066244290, 860979848497650800, 31825036424306680000, 1.2498955362431412e+21, 5.197590806057537e+22 ]
[ "easy", "nonn" ]
A090613
[ 2, 7, 11, 17, 21, 26, 37, 46, 49, 53, 57, 61, 64, 71, 73, 80, 92, 98, 103, 106, 114, 118, 121, 137, 138, 145, 148, 160, 166, 168, 175, 186, 188, 190, 196, 204, 206, 210, 215, 218, 232, 236, 243, 248, 255, 258, 263, 265, ...
[ "nonn" ]
A139578
[ 0, 15, 34, 57, 84, 115, 150, 189, 232, 279, 330, 385, 444, 507, 574, 645, 720, 799, 882, 969, 1060, 1155, 1254, 1357, 1464, 1575, 1690, 1809, 1932, 2059, 2190, 2325, 2464, 2607, 2754, 2905, 3060, 3219, 3382, 3549, 3720, 3895, 4074, ...
[ "easy", "nonn" ]
A191365
[ 1, 1, 4, 18, 102, 695, 5485, 49077, 490308, 5404569, 65106103, 850535477, 11972432846, 180605413001, 2906109200293, 49678357272247, 898988188301320, 17167497793440976, 344991795682802300, 7277230501449341000, 160765066207998480000 ]
[ "nonn" ]
A021677
[ 0, 0, 1, 4, 8, 5, 8, 8, 4, 1, 0, 1, 0, 4, 0, 1, 1, 8, 8, 7, 0, 7, 2, 8, 0, 8, 3, 2, 0, 9, 5, 0, 9, 6, 5, 8, 2, 4, 6, 6, 5, 6, 7, 6, 0, 7, 7, 2, 6, 5, 9, 7, 3, 2, 5, 4, 0, 8, 6, 1, 8, 1, 2, 7...
[ "nonn", "cons", "easy" ]
A376221
[ 3, 5, 109, 7, 18796638871, 131870666077, 83, 11, 1234567891, 13, 24677 ]
[ "nonn", "more", "base" ]
A081180
[ 0, 1, 8, 50, 288, 1604, 8800, 47944, 260352, 1411600, 7647872, 41420576, 224294400, 1214467136, 6575615488, 35602384000, 192760455168, 1043650265344, 5650555750400, 30593342288384, 165638957801472, 896804870374400 ]
[ "easy", "nonn" ]
A282755
[ 11, 125, 1255, 2510, 11009, 11099, 11255, 11379, 12326, 12955, 14379, 14397, 15033, 15303, 16325, 17482, 21109, 25105, 31007, 31503, 33011, 35213, 37127, 37921, 41303, 44011, 49319, 51367, 53491, 63013, 69413, 70319, 71057, 72013, 72517, 74341, ...
[ "nonn", "base" ]
A304566
[ 0, 3, 12, 6, 70, 3, 266, 24, 969, 30, 4253, 212 ]
[ "nonn", "more" ]
A312542
[ 1, 4, 8, 14, 18, 24, 28, 28, 34, 38, 46, 46, 56, 54, 66, 70, 76, 70, 80, 78, 92, 88, 102, 96, 112, 118, 122, 112, 128, 118, 138, 128, 150, 136, 160, 164, 170, 152, 176, 160, 184, 168, 196, 178, 206, 212, 216, 194, 222, ...
[ "nonn" ]
A058614
[ 1, 0, 0, -2, 2, -2, 3, -2, 5, -6, 5, -6, 9, -10, 10, -16, 17, -18, 25, -26, 31, -38, 37, -48, 60, -62, 68, -84, 95, -104, 125, -134, 154, -182, 192, -220, 257, -274, 309, -360, 394, -434, 492, -544, 607, -688, 740, -824, ...
[ "sign" ]
A015340
[ 1, -1640, 4035220, -8509702520, 18843459775162, -41041673208656120, 89881489830655850000, -1.964809367698137e+23, 4.2976934229632226e+26, -9.398577800454146e+29 ]
[ "sign", "easy" ]
A159127
[ 1, 37, 891, 18042, 337138, 6078572, 108365293, 1938295834, 35109616512, 648055261057 ]
[ "nonn" ]
A310330
[ 1, 3, 9, 15, 18, 24, 27, 30, 39, 45, 51, 54, 54, 60, 66, 69, 81, 84, 78, 90, 96, 99, 108, 114, 111, 114, 129, 126, 132, 141, 138, 144, 156, 162, 162, 168, 165, 174, 186, 183, 198, 195, 186, 204, 216, 216, 222, 231, 216, ...
[ "nonn" ]
A030879
[ 2, 4, 12, 49, 247, 1482, 10377, 83019, 747171, 7471712, 82188838, 986266063, 12821458831, 179500423635, 2692506354539, 43080101672631, 732361728434739, 13182511111825302, 250467711124680740, 5009354222493615000 ]
[ "nonn" ]
A284369
[ 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0...
[ "nonn", "easy" ]