id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A292618
[ 359, 389, 839, 853, 937, 1019, 2213, 2221, 2237, 2593, 3019, 3821, 3823, 4111, 4231, 4801, 5407, 5839, 6997, 12241, 13499, 14741, 15473, 25603, 25771, 25793, 26393, 28597, 29297, 30839, 31147, 31543, 35051, 40487, 45281, 47933, 50023, 51827, ...
[ "nonn" ]
A313861
[ 1, 5, 10, 16, 21, 25, 30, 38, 44, 46, 57, 61, 66, 72, 71, 82, 87, 88, 100, 103, 109, 114, 114, 126, 128, 135, 143, 146, 156, 155, 158, 169, 170, 178, 185, 189, 198, 198, 202, 210, 217, 221, 228, 236, 239, 242, 245, 252, ...
[ "nonn" ]
A085052
[ 3, 7, 5, 643, 7, 11, 17, 13, 11, 139, 13, 17, 23, 19, 17, 397, 19, 23, 29, 37, 23, 151, 463, 29, 53, 31, 29, 157, 31, 47, 41, 37, 43, 163, 37, 41, 47, 43, 41, 421, 43, 47, 53, 61, 47, 547, 487, 53, 59, 67, 53, 181,...
[ "easy", "nonn" ]
A163234
[ 0, 1, 2, 4, 6, 3, 11, 7, 9, 13, 5, 8, 24, 18, 17, 12, 28, 21, 37, 29, 10, 15, 16, 22, 58, 48, 47, 38, 31, 39, 23, 30, 35, 43, 27, 34, 62, 52, 51, 42, 14, 19, 20, 26, 32, 25, 41, 33, 112, 98, 97, 84, 73, 85, 6...
[ "nonn" ]
A104487
[ 1, 4, 14, 47, 154, 496, 1577, 4964, 15502, 48103, 148490, 456416, 1397905, 4268740, 13002638, 39522143, 119912698, 363262672, 1099015481, 3321204260, 10026858766, 30246156439, 91171963754, 274650794432, 826923598369 ]
[ "nonn", "easy" ]
A259884
[ 1, 3, 4, 4, 4, 7, 8, 4, 5, 8, 12, 8, 4, 12, 8, 8, 9, 12, 16, 4, 12, 15, 8, 8, 8, 20, 20, 8, 8, 12, 16, 16, 8, 15, 20, 12, 12, 16, 16, 12, 13, 24, 20, 8, 8, 24, 24, 8, 16, 12, 28, 16, 12, 28, 8, 20, 13, ...
[ "nonn" ]
A012331
[ 0, 2, 0, -200, 1344, 609568, -7504640, -8722673024, 485760120832, 492836371075584, -36976815179227140, -58897173274787110000, 1.1400113150368498e+22, 1.7579088319490872e+25, -4.055464184781251e+27, -8.248546055061339e+30, 3.9335640528958016e+33, 7.959329273059132e+36 ]
[ "sign" ]
A008937
[ 0, 1, 2, 4, 8, 15, 28, 52, 96, 177, 326, 600, 1104, 2031, 3736, 6872, 12640, 23249, 42762, 78652, 144664, 266079, 489396, 900140, 1655616, 3045153, 5600910, 10301680, 18947744, 34850335, 64099760, 117897840, 216847936, 398845537, 733591314, 13492...
[ "nonn", "easy" ]
A357540
[ 1, 4, 4, 160, 800, 160, 20800, 292800, 292800, 20800, 6476800, 191910400, 500121600, 191910400, 6476800, 3946624000, 210590336000, 1091343616000, 1091343616000, 210590336000, 3946624000, 4161608704000, 361556726784000, 3216369361920000, 6333406238720000, 32163693619...
[ "nonn", "tabl" ]
A004873
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 384, 385, 386, 387, 388, 389, 390, 391, 392, 512, 513, 514, 515, 516, 517, 51...
[ "nonn" ]
A355868
[ 1, 2, 3, 3, 5, 39, 206, 697, 1656, 3208, 8727, 41667, 192142, 688944, 1965643, 5117374, 15888133, 63924038, 263759291, 955198539, 3017571957, 9101208987, 30075674452, 113177783141, 437460265979, 1583161667787, 5299622270275, 17294182815347, 59169678008804 ]
[ "nonn" ]
A132057
[ 1, 28, 1, 980, 56, 1, 37730, 2744, 84, 1, 1531838, 130340, 5292, 112, 1, 64337196, 6136956, 299782, 8624, 140, 1, 2766499428, 288408120, 16120314, 568008, 12740, 168, 1, 121034349975, 13561837212, 841627332, 34401528, 956970, 17640, 196, 1 ]
[ "nonn", "easy", "tabl" ]
A156198
[ 8, 19, 41, 85, 173, 349, 701, 1405, 2813, 5629, 11261, 22525, 45053, 90109, 180221, 360445, 720893, 1441789, 2883581, 5767165, 11534333, 23068669, 46137341, 92274685, 184549373, 369098749, 738197501, 1476395005, 2952790013 ]
[ "nonn", "easy" ]
A133038
[ 1, 0, 0, 1, 0, 1, 1, 1, 8, 8, 27, 64, 125, 343, 729, 1728, 4096, 9261, 21952, 50653, 117649, 274625, 636056, 1481544, 3442951, 8000000, 18609625, 43243551, 100544625, 233744896, 543338496, 1263214441, 2936493568, 6826561273, 15870019697, 36892780...
[ "easy", "nonn" ]
A087531
[ 37, 73, 33373777, 33773737, 37373773, 37377337, 73337377, 73337773, 73373737, 73773373, 77337373, 77733373, 3337737737, 3337777337, 3377733773, 3733377377, 3733733777, 3737733773, 3773333777, 3773337377, 3773733737, 3777333773, 3777337337, 3777337373 ]
[ "base", "nonn" ]
A342298
[ 2, 25, 931, 504455, 67539587599, 585462196329239540000, 2.169098080089842e+40, 1.4792097944732868e+79 ]
[ "nonn", "base" ]
A067464
[ 2, 5, 37, 101, 257, 401, 4801, 12101, 22501, 25537, 25601, 31249, 33857, 160001, 217157, 401957, 404497, 476101, 512657, 583697, 1020101, 1270417, 1322501, 1503377, 1674437, 1943237, 2005057, 2016401, 2056357, 2689601, 2755601, 2842597, 3686401, 3920...
[ "nonn" ]
A149050
[ 1, 1, 3, 10, 39, 149, 621, 2608, 11362, 50005, 224087, 1013844, 4634939, 21348758, 99021584, 461872495, 2165291885, 10194743118, 48184538956, 228506836782, 1086931778012, 5184096470608, 24785574274311, 118761815637600, 570191410379617, 2742543994332775, 1321324001...
[ "nonn", "walk" ]
A148888
[ 1, 1, 3, 8, 30, 104, 413, 1627, 6738, 28291, 121351, 527845, 2325348, 10350338, 46493978, 210439523, 959042601, 4396353397, 20259252722, 93795603600, 436053315743, 2034850056215, 9527769028756, 44749410126415, 210766594872031, 995244645976326, 4710672278535226, ...
[ "nonn", "walk" ]
A157314
[ 1, 1, 2, 5, 16, 62, 298, 1700, 11448, 88622, 778532, 7636888, 82782697, 981775224, 12643542295, 175638751080, 2617558335383, 41650633309937, 704712768652527, 12632584581030448, 239150363847113660, 4767657035201958000 ]
[ "nonn" ]
A309708
[ 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 7, 8, 13, 15, 20, 25, 31, 36, 45, 51, 65, 74, 89, 103, 121, 136, 159, 177, 208, 231, 265, 296, 335, 369, 416, 455, 514, 561, 625, 684, 756, 820, 904, 976, 1076, 1160, 1268, 1368, 1488, 159...
[ "nonn", "easy" ]
A176263
[ 1, 1, 1, 1, -4, 1, 1, -4, -4, 1, 1, -29, -29, -29, 1, 1, -54, -79, -79, -54, 1, 1, -204, -254, -279, -254, -204, 1, 1, -479, -679, -729, -729, -679, -479, 1, 1, -1504, -1979, -2179, -2204, -2179, -1979, -1504, 1, 1, -3904, ...
[ "sign", "tabl", "easy" ]
A353169
[ 1, 3, 8, 23, 57, 137, 317, 705, 1524, 3224, 6667, 13521, 26980, 52985, 102624, 196248, 370849, 693159, 1282537, 2350584, 4269912, 7692044, 13748080, 24390170, 42966637, 75187515, 130737631, 225957706, 388279308, 663533206, 1127936772, 1907676978, 32107...
[ "nonn" ]
A035497
[ 7, 13, 19, 23, 31, 79, 97, 103, 109, 139, 167, 193, 239, 263, 293, 313, 331, 367, 379, 383, 397, 409, 487, 563, 617, 653, 673, 683, 709, 739, 761, 863, 881, 907, 937, 1009, 1033, 1039, 1093, 1151, 1277, 1303, 1373, 1427, 1447, ...
[ "nonn", "easy", "base" ]
A163653
[ 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 1187, 1193, 1201, 2621, 2633, 2647, 2657, 2659, 2663, 2671, 2677, 2683, 2687, 2689, 2693, 2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741, 2749, 2753, 2767, 2777, 27...
[ "nonn", "tabf", "less" ]
A002972
[ 1, 3, 1, 5, 1, 5, 7, 5, 3, 5, 9, 1, 3, 7, 11, 7, 11, 13, 9, 7, 1, 15, 13, 15, 1, 13, 9, 5, 17, 13, 11, 9, 5, 17, 7, 17, 19, 1, 3, 15, 17, 7, 21, 19, 5, 11, 21, 19, 13, 1, 23, 5, 17, 19, 25, 13, 25, 23, ...
[ "nonn" ]
A150140
[ 1, 2, 6, 20, 73, 280, 1119, 4596, 19322, 82650, 358876, 1576911, 7001693, 31358107, 141524444, 642918451, 2937880585, 13493909464, 62267058197, 288513529181, 1341856939676, 6261982534246, 29313304996458, 137606976791765, 647659389106798, 3055539614439363, 14447445...
[ "nonn", "walk" ]
A112756
[ 1, 3, 5, 3, 5, 5, 3, 5, 5, 3, 5, 5, 5, 3, 5, 5, 5, 5, 3, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5...
[ "nonn" ]
A367147
[ 0, 1, 2, 3, 4, 5, 6, 12, 14, 15, 9, 17, 18, 29, 7, 8, 23, 10, 11, 30, 13, 20, 21, 22, 33, 24, 16, 26, 27, 28, 36, 42, 19, 38, 39, 25, 41, 31, 32, 57, 34, 35, 60, 54, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53...
[ "nonn" ]
A168767
[ 1, 42, 1722, 70602, 2894682, 118681962, 4865960442, 199504378122, 8179679503002, 335366859623082, 13750041244546362, 563751691026400830, 23113819332082434000, 947666592615379800000, 3.885433029723057e+22 ]
[ "nonn", "easy" ]
A255641
[ 1, 2, 3, 4, 5, 7, 10, 11, 17, 22, 29, 41, 58, 67, 101, 131, 173, 262, 346, 461, 617, 787, 1123, 1571, 2077, 2767, 4153, 5443, 7963, 10733, 13997, 21101, 27997, 36643, 49747, 72103, 99317, 143239, 179107, 260213 ]
[ "nonn" ]
A237461
[ 61152, 496942, 2683716, 14469792, 76965324, 459648432, 2568519258, 13683327428, 75596096370, 437088214352, 2447043485492, 13446364210786, 75224122339854, 426711833953320, 2388820630220620, 13297750882801848, 74524529591634160 ]
[ "nonn" ]
A275285
[ 1, 2, 5, 6, 30, 58, 66, 127, 138, 179, 287, 520, 767, 954, 966, 1254, 1313, 1976, 2266, 2496, 3137, 4058, 4411, 7009, 11736, 12155, 21328, 31124, 31589, 38581, 42683, 54634, 56634, 85297 ]
[ "nonn", "more" ]
A063543
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 18, 19, 18, 17, 16, 15, 14, 13, 12, 11, 27, 28, 26, 24, 22, 20, 18, 16, 14, 12, 36, 37, 34, 31, 28, 25, 22, 19, 16, 13, 45, 46, 42, 38, 34, 30...
[ "nonn", "base", "easy", "look" ]
A374607
[ 193, 1153, 20029, 832, 111073, 50077, 327757, 7816, 724513, 251857, 1355773, 55511, 2275969, 715357, 3539533, 134909, 5200897, 1549441, 7314493, 133717, 9934753, 2862973, 13116109, 233347, 16912993, 4764817, 21379837, 746297, 26571073, 7363837, 32541133, ...
[ "nonn", "frac" ]
A385372
[ 1, 1, 4, 27, 264, 3369, 52896, 986187, 21293184, 522491697, 14359993344, 436964488443, 14583637923840, 529683272760537, 20798444046458880, 877927319167721100, 39644175780617750000, 1.906959640776767e+21, 9.73449363930866e+22, 5.255894631271229e+24 ]
[ "nonn" ]
A230156
[ 9, 2, 1, 5, 9, 9, 3, 1, 9, 6, 3, 3, 9, 8, 3, 0, 0, 6, 2, 9, 9, 4, 3, 0, 3, 1, 5, 2, 0, 1, 9, 6, 9, 3, 9, 4, 2, 5, 3, 6, 8, 0, 3, 8, 4, 2, 5, 3, 3, 7, 0, 7, 8, 9, 8, 7, 9, 6, 5, 4, 5, 1, 6, 4...
[ "nonn", "cons" ]
A201994
[ 1, 9, 8, 9, 2, 8, 0, 2, 3, 4, 2, 9, 8, 9, 0, 1, 0, 2, 3, 4, 2, 0, 8, 5, 8, 6, 8, 7, 4, 2, 1, 5, 1, 6, 3, 8, 1, 4, 9, 4, 4, 6, 0, 7, 7, 0, 7, 4, 2, 5, 0, 2, 7, 0, 9, 0, 7, 8, 1, 5, 3, 9, 9, 2...
[ "cons", "nonn" ]
A251954
[ 922890, 41025310, 2371536636, 146613818422, 9379424889214, 608058611665734, 39605904141383750, 2584524088734501000, 168778628082765960000, 1.1024933232341164e+22, 7.202482143682224e+23 ]
[ "nonn" ]
A206135
[ 797996, 241927532, 75353928196, 23692759265020, 7476894104333060, 2363085244017636400, 747324517604795100000, 2.3640299342757113e+23, 7.479018236548513e+25, 2.3662267614587187e+28 ]
[ "nonn" ]
A105730
[ 6, 12, 8, 6, 13, 8, 6, 9, 11, 6, 21, 8, 6, 78, 8, 6, 9, 13, 6, 15, 8, 6, 16, 8, 6, 9, 20, 6, 12, 8, 6, 13, 8, 6, 9, 11, 6, 14, 8, 6, 32, 8, 6, 9, 32, 6, 23, 8, 6, 24, 8, 6, 9, 14, 6, 12, 8, 6, 13, 8...
[ "easy", "nonn", "less" ]
A251730
[ 10, 152, 2130, 29680, 413402, 5757960, 80198050, 1117014752, 15558008490, 216695104120, 3018173449202, 42037733184720, 585510091136890, 8155103542731752, 113585939507107650, 1582048049556775400, 22035086754287747000, 306909166510471700000 ]
[ "nonn", "easy" ]
A090078
[ 0, 1, 2, 3, 2, 5, 6, 7, 2, 5, 10, 11, 6, 13, 14, 15, 2, 5, 10, 11, 10, 21, 22, 23, 6, 13, 26, 27, 14, 29, 30, 31, 2, 5, 10, 11, 10, 21, 22, 23, 10, 21, 42, 43, 22, 45, 46, 47, 6, 13, 26, 27, 26, 53, 54, 55,...
[ "nonn", "base", "easy" ]
A079190
[ 1, 6, 996, 31857648, 266666713602640, 9.298091737557136e+23, 2.0021234022661817e+36, 3.7022362485577395e+51, 7.8052968295284e+69 ]
[ "nonn" ]
A378000
[ 2, 11, 9, 75, 15, 10, 694, 78, 19, 12, 8345, 698, 99, 21, 35, 123717, 8350, 714, 108, 260, 37, 2177399, 123723, 8375, 722, 114, 266, 38, 44317196, 2177406, 123759, 8385, 738, 120, 268, 41, 1023456789, 44317204, 2177455, 123771, 8410, ...
[ "nonn", "base", "tabl" ]
A345087
[ 2562624, 5618250, 6525000, 6755328, 7374375, 12742920, 13581352, 14027112, 14288373, 14926248, 16819704, 18443160, 20168784, 20500992, 22783032, 23113728, 25305048, 26936064, 27131840, 29515968, 30205440, 32835375, 34012224, 38269440, 39317832, 39339000 ]
[ "nonn" ]
A267875
[ 3, 0, 0, 3, 7, 6, 4, 1, 8, 0, 8, 4, 6, 0, 6, 1, 8, 2, 0, 5, 2, 9, 8, 6, 0, 9, 8, 3, 5, 9, 1, 6, 6, 0, 5, 0, 0, 5, 6, 8, 7, 5, 8, 6, 3, 0, 3, 0, 3, 0, 1, 4, 8, 4, 8, 4, 3, 9, 4, 1, 6, 9, 3, 3...
[ "nonn", "cons", "fini" ]
A165102
[ 5, 3, 2, 4, 3, 7, 4, 3, 3, 5, 5, 4, 3, 3, 3, 3, 6, 4, 2, 3, 3, 3, 3, 4, 2, 3, 3, 3, 5, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, ...
[ "base", "nonn" ]
A349270
[ 1, 2, 5, 16, 46, 204, 986, 6400, 48094, 420140, 4112822, 44575584, 528787260, 6811260792, 94637153172, 1410542965248, 22446384533142, 379801729831500, 6808478318116238, 128895044005636960, 2569653423591937000, 53808349548318970000, 1.1807370412284282e+21 ]
[ "nonn" ]
A089417
[ 1, 1, 1, 2, 7, 6, 10, 20, 37, 70, 130, 272, 480, 954, 1750, 3462, 6481, 12922, 24372, 48702, 92490 ]
[ "nonn" ]
A057546
[ 1, 1, 2, 3, 5, 6, 10, 11, 18, 21, 34, 35, 68, 69, 137, 148, 316, 317, 759, 760, 1869, 1915, 4833, 4834, 12796, 12802, 34108, 34384, 92792, 92793, 254752, 254753, 703083, 704956, 1958210, 1958231, 5485330, 5485331, 15427026, 15440591, 43...
[ "nonn" ]
A138064
[ 1, 0, -1, -1, 0, 1, -9, 3, 3, -1, 96, 32, -20, -4, 1, 1250, -125, -250, 25, 10, -1, -19440, -5184, 2592, 576, -93, -12, 1, -352947, 16807, 50421, -2401, -2058, 98, 21, -1, 7340032, 1572864, -753664, -147456, 24064, 3840, -272, -24...
[ "uned", "tabl", "sign" ]
A337352
[ 1, 20, 524, 19660, 854380, 40304080, 2004409236, 103440770760, 5486614131756, 297239307415792, 16376472734974384, 914734188877259900, 51680064605716046000, 2.9480465195642923e+21, 1.6956094193250994e+23, 9.822377923336684e+24, 5.725547533841663e+26 ]
[ "nonn", "easy" ]
A338409
[ 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 3, 3, 2, 2, 2, 3, 2, 3, 4, 3, 4, 3, 4, 4, 4, 4, 6, 6, 5, 6, 4, 4, 6, 7, 7, 6, 7, 6, 5, 4, 6, 7, 8, 8, 8, 8, 10, 8, 8, 8, 9, 10, 8, 9, 11, 13, 11, 9, 12, 11, 10, 11,...
[ "nonn" ]
A139806
[ 1, 3, 7, 15, 27, 55, 111, 223, 443, 887, 1775, 3551, 7099, 14199, 28399, 56799, 113595, 227191, 454383, 908767, 1817531, 3635063, 7270127, 14540255, 29080507, 58161015, 116322031, 232644063, 465288123, 930576247, 1861152495, 3722304991, 7444609979, 1...
[ "nonn", "easy" ]
A372265
[ 0, 2, 4, 7, 14, 31, 76, 207, 609, 1913, 6327, 21896, 78922, 295272, 1143549, 4574158, 18859692, 80014850, 348776594, 1559776287, 7147792837, 33526120102, 160785623566, 787685471345, 3938427356638, 20082117944270, 104349745809099, 552166953567254, 2973510046012...
[ "nonn" ]
A380737
[ 9, 6, 0, 3, 6, 2, 1, 1, 7, 7, 0, 7, 7, 9, 5, 7, 3, 5, 7, 4, 0, 1, 3, 9, 1, 5, 2, 3, 1, 4, 5, 7, 6, 8, 5, 6, 4, 7, 7, 7, 7, 0, 8, 1, 7, 7, 0, 8, 1, 3, 1, 0, 9, 9, 4, 3, 2, 2, 1, 9, 9, 7, 5, 5...
[ "nonn", "cons", "easy" ]
A351952
[ 0, 1, 1, 5, 2, 7, 1, 7, 8, 31, 13, 41, 2, 9, 11, 37, 16, 47, 3, 11, 14, 43, 19, 53, 1, 9, 10, 41, 17, 55, 12, 59, 71, 247, 106, 317, 19, 73, 92, 289, 127, 359, 26, 87, 113, 331, 148, 401, 2, 11, 13, 47, 20, 61,...
[ "nonn", "base", "look" ]
A015419
[ 1, 1, 0, -1, -1, -1, 0, 1, 1, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, 0, 1, 1, 1, 0, -1, -1, 0, 0, 0, 0, 0, 0, ...
[ "sign" ]
A070470
[ 0, 1, 4, 9, 16, 25, 36, 1, 16, 33, 4, 25, 0, 25, 4, 33, 16, 1, 36, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 36, 1, 16, 33, 4, 25, 0, 25, 4, 33, 16, 1, 36, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 36, 1, 16, 33,...
[ "nonn", "easy" ]
A103740
[ 1, 2, 3, 4, 5, 7, 8, 10, 11, 15, 41, 98, 149, 193, 233, 265, 403, 898, 935, 1291, 2079 ]
[ "nonn", "less" ]
A164028
[ 1, 3, 5, 6, 7, 9, 11, 12, 13, 15, 17, 18, 19, 21, 22, 23, 24, 25, 27, 29, 30, 31, 32, 33, 35, 36, 37, 39, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 57, 59, 60, 61, 62, 63, 65, 66, 67, 69, 71, 72, 73, ...
[ "nonn", "easy" ]
A056283
[ 0, 0, 2, 9, 30, 91, 258, 729, 2018, 5613, 15546, 43315, 120750, 338259, 950062, 2678499, 7573350, 21480739, 61088874, 174184755, 497812638, 1425847623, 4092087522, 11765822365, 33887517870, 97756387365, 282414624746, 816999710223, 2366509198350, 686293084114...
[ "nonn" ]
A375860
[ 1, 2, 19, 298, 6351, 152516, 3982186, 112862604, 3477324887, 116564337340, 4243247421102, 167133260332116, 7090692457208714, 322501850458391040, 15654927194390330000, 807745569631252800000, 4.413838064630332e+22, 2.546015709197766e+24, 1.5457647959845115e+26 ]
[ "nonn" ]
A077474
[ 1, 4, 8, 18, 21, 28, 31, 36, 41, 44, 55, 58, 71, 76, 79, 84, 88, 108, 125, 135, 141, 148, 155, 158, 164, 175, 180, 185, 195, 198, 218, 225, 230, 237, 242, 246, 250, 254, 259, 263, 268, 276, 281, 300, 305, 310, 317, 321, ...
[ "easy", "nonn" ]
A346162
[ 3, 65, 1995, 149121, 13399155, 2141638785, 387394882875, 107278565018625, 32598647029023076, 13887464253877203000, 6.371929420307657e+21, 3.868428575833744e+24, 2.4981092536102003e+27, 2.0489402763365732e+30, 1.7717228897154283e+33, 1.8873958446381884e+36 ]
[ "nonn" ]
A247180
[ 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 46, 47, 50, 51, 53, 54, 55, 57, 58, 59, 61, 62, 65, 66, 67, 69, 70, 71, 73, 74, 75, 77, 78, 79, 82,...
[ "nonn" ]
A288077
[ 1169740, 66449432, 1955808460, 40121261136, 647739636160, 8789123742880, 104395235785256, 1115525500250760, 10933959720960760, 99727841192820020, 855779329367736800, 6968569097113244000, 54217755730994860000, 405300088876353200000, 2.9244558409812704e+21, 2.0446207814548584e+22, 1.38...
[ "nonn" ]
A385694
[ 3, 3, 0, 5, 1, 8, 2, 9, 9, 2, 5, 3, 9, 8, 6, 3, 4, 6, 4, 6, 9, 2, 0, 1, 3, 8, 7, 4, 3, 6, 3, 6, 5, 7, 5, 8, 9, 6, 9, 9, 0, 4, 3, 8, 1, 8, 4, 0, 4, 0, 4, 4, 9, 7, 8, 6, 7, 2, 0, 5, 0, 3, 3, 8...
[ "nonn", "cons", "easy" ]
A022170
[ 1, 1, 1, 1, 7, 1, 1, 43, 43, 1, 1, 259, 1591, 259, 1, 1, 1555, 57535, 57535, 1555, 1, 1, 9331, 2072815, 12485095, 2072815, 9331, 1, 1, 55987, 74630671, 2698853335, 2698853335, 74630671, 55987, 1, 1, 335923 ]
[ "nonn", "tabl" ]
A318112
[ 1, 1, 1, 1, 1, 1024, 6127, 23936, 72531, 185422, 419342, 864172 ]
[ "nonn", "more" ]
A332828
[ 0, 1, 1, 1, 1, 0, 1, -1, 1, -1, 0, -1, -1, -1, -1, 0, -1, 1, -1, 1, 0, 1, 1, 1, 1, 0, 1, -1, 1, -1, 0, -1, -1, -1, -1, 0, -1, 1, -1, 1, 0, 1, 1, 1, 1, 0, 1, -1, 1, -1, 0, -1, -1, -1, -1, 0, -1, 1, -1,...
[ "sign", "easy" ]
A332107
[ 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 34, 36, 37, 38, 39, 41, 43, 44, 45, 46, 48, 50, 51, 52, 53, 55, 57, 58, 60, 62, 63, 64, 65, 67, 69, 71, ...
[ "nonn", "fini", "full" ]
A253760
[ 82064, 1135439, 17235224, 259418152, 3910850069, 59192461388, 905139371305, 13773651088674, 210205418977063, 3197332778032060, 48751981977524960, 741871790268964200, 11303138320941955000, 172011812879115940000 ]
[ "nonn" ]
A037909
[ 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 2, 1, 2, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0...
[ "nonn", "base" ]
A318983
[ 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 0, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 1...
[ "nonn", "easy", "mult" ]
A100838
[ 2, 4, 6, 32 ]
[ "hard", "more", "nonn" ]
A011198
[ 1, 0, 7, 5, 6, 9, 0, 5, 8, 6, 2, 2, 0, 1, 8, 2, 4, 7, 4, 2, 3, 1, 4, 0, 0, 7, 7, 6, 4, 6, 4, 0, 9, 2, 1, 3, 5, 1, 3, 3, 7, 5, 9, 9, 0, 3, 3, 5, 5, 6, 4, 0, 1, 9, 9, 4, 2, 0, 4, 1, 2, 3, 7, 1...
[ "nonn", "cons" ]
A385655
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 17, 19, 20, 22, 28, 29, 34, 37, 38, 46, 47, 51, 56, 65, 70, 79, 88, 91, 94, 95, 103, 105, 106, 112, 114, 118, 121, 123, 130, 132, 137, 141, 150, 157, 166, 175, 178, 184, 192, 2...
[ "base", "nonn" ]
A079518
[ 1, 28, 462, 6832, 97957, 1394180, 19862674, 284156608, 4086496362, 59089988216, 858975619676, 12549322976672, 184195104642157, 2715174884250004, 40181870424263144, 596810833742837500, 8893877150513222000, 132947157383427380000, 1.9929542802537925e+21 ]
[ "nonn" ]
A262459
[ 0, 1, 3072, 2066242608, 562949953421312000, 9.42964106798172e+28, 1.358478343035029e+43, 2.2382702528956594e+60 ]
[ "nonn", "easy" ]
A289957
[ 34459425, 4583103525, 353553700500, 20941727706900, 1063956789420525, 49122916648430620, 2133284602385096200, 89095866141017740000, 3.632887356673058e+21, 1.4616213410033295e+23, 5.846991791902794e+24, 2.338819073991019e+26 ]
[ "nonn" ]
A198876
[ 1, 3, 2, 1, 5, 9, 9, 6, 2, 0, 8, 7, 6, 7, 1, 8, 2, 2, 2, 1, 3, 7, 7, 3, 3, 4, 9, 2, 8, 1, 7, 5, 0, 4, 2, 4, 4, 9, 9, 2, 5, 6, 1, 5, 3, 4, 7, 3, 1, 2, 1, 4, 4, 0, 6, 8, 0, 4, 7, 9, 1, 0, 5, 5...
[ "nonn", "cons" ]
A107458
[ 1, 0, 0, 0, 1, 0, 1, 1, 2, 2, 4, 5, 8, 11, 17, 24, 36, 52, 77, 112, 165, 241, 354, 518, 760, 1113, 1632, 2391, 3505, 5136, 7528, 11032, 16169, 23696, 34729, 50897, 74594, 109322, 160220, 234813, 344136, 504355, 739169, 1083304, ...
[ "nonn", "easy" ]
A338914
[ 1, 0, 0, 1, 1, 2, 3, 4, 6, 9, 11, 16, 23, 29, 39, 53, 69, 90, 118, 150, 195, 249, 315, 398, 506, 629, 789, 982, 1219, 1504, 1860, 2277, 2798, 3413, 4161, 5051, 6137, 7406, 8948, 10765, 12943, 15503, 18571, 22153, 26432, 31432,...
[ "nonn" ]
A041535
[ 1, 1, 6, 7, 27, 61, 88, 413, 3392, 13981, 17373, 48727, 163554, 212281, 1224959, 1437240, 47216639, 48653879, 290486034, 339139913, 1307905773, 2954951459, 4262857232, 20006380387, 164313900328, 677261981699, 841575882027, 2360413745753, 7922817119286 ]
[ "nonn", "easy", "frac" ]
A355402
[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 1, 3, 1, 2, 3, 4, 1, 3, 1, 4, 3, 2, 5, 4, 1, 2, 3, 5, 1, 6, 1, 4, 5, 2, 1, 6, 7, 5, 3, 4, 1, 6, 5, 8, 3, 2, 1, 6, 1, 2, 9, 8, 5, 6, 1, 4, 3, 1...
[ "nonn", "easy" ]
A141349
[ 1, 3, 9, 43, 125, 1117, 8227 ]
[ "nonn", "hard", "more" ]
A185171
[ 2, 3, 8, 18, 48, 116, 312, 810, 2184, 5880, 16104, 44220, 122640, 341484, 956576, 2690010, 7596480, 21522228, 61171656, 174336264, 498111952, 1426403748, 4093181688, 11767874940, 33891544368, 97764009000, 282429535752, 817028131140, 2366564736720 ]
[ "nonn" ]
A173343
[ 1, 2, 0, -5, -8, 0, 21, 34, 0, -89, -144, 0, 377, 610, 0, -1597, -2584, 0, 6765, 10946, 0, -28657, -46368, 0, 121393, 196418, 0, -514229, -832040, 0, 2178309, 3524578, 0, -9227465, -14930352, 0, 39088169, 63245986, 0, -165580141, -26791...
[ "easy", "sign", "changed" ]
A312641
[ 1, 4, 8, 14, 20, 22, 28, 28, 36, 38, 44, 48, 52, 66, 60, 74, 60, 82, 70, 90, 80, 98, 104, 106, 112, 100, 120, 110, 128, 120, 136, 150, 144, 158, 132, 166, 142, 174, 152, 182, 188, 190, 196, 172, 204, 182, 212, 192, 220, ...
[ "nonn" ]
A125729
[ 0, 5, 40, 285, 2000, 14005, 98040, 686285, 4804000, 33628005, 235396040, 1647772285, 11534406000, 80740842005, 565185894040, 3956301258285, 27694108808000, 193858761656005, 1357011331592040, 9499079321144284 ]
[ "easy", "nonn" ]
A239166
[ 0, 1, 24, 9633, 95520600, 27656224652420, 260755601247189040000, 8.59627598066109e+28, 1.0411892814777249e+39, 4.805885145517004e+50, 8.695551969224574e+63 ]
[ "nonn" ]
A221026
[ 6, 11, 17, 21, 30, 33, 42, 46, 54, 60, 66, 71, 75, 84, 90, 94, 100, 106, 113, 118, 125, 131, 138, 144, 150, 152, 160, 167, 173, 177, 183, 191, 197, 202, 206, 216, 222, 228, 233, 239, 244, 251, 256, 262, 268, 276, 282, 285,...
[ "nonn" ]
A067919
[ 2, 2, 3, 11, 14, 27, 28, 66, 212, 231, 552, 2842, 3774, 6038, 6784, 10950, 32948, 78591, 97875, 98342, 123569, 139837, 159698, 1102838, 3256476, 20329622, 34385124, 60999878, 82669919, 85820365, 389915995, 4274338879, 18907353107, 62875944378, 7493...
[ "easy", "nonn" ]
A274409
[ 2, 2, 8, 12, 32, 18, 128, 24, 336, 992, 2048, 1348, 8192, 16256, 6060, 43680, 131072, 20160, 524288, 429528, 39248, 4192256, 8388608, 15632, 24165120, 67100672, 133432320, 54894172, 536870912, 555642580, 2147483648, 518918400 ]
[ "nonn" ]
A173328
[ 4, 6, 8, 9, 10, 12, 18, 20, 22, 25, 27, 30, 32, 34, 44, 49, 50, 58, 60, 68, 70, 82, 90, 102, 104, 105, 116, 118, 121, 125, 135, 140, 142, 150, 152, 164, 169, 174, 182, 189, 190, 195, 202, 204, 208, 214, 231, 236, 238, ...
[ "nonn" ]
A012212
[ 3, 6, 6, 12, 12, 12, 12, 18, 18, 24, 36, 48, 60, 84, 102, 138, 186, 246, 306, 378, 486, 630, 816, 1050, 1350, 1782, 2328, 2988, 3870, 5076, 6624, 8616, 11112, 14454, 18882, 24630, 31944, 41442, 53988, 70422, 91614, 119046, 154896, ...
[ "nonn", "base" ]
A208014
[ 9, 81, 225, 841, 2304, 6084, 18496, 53824, 150544, 435600, 1263376, 3610000, 10368400, 29899024, 85895824, 246741264, 709902736, 2041232400, 5866947216, 16869853456, 48507419536, 139454446096, 400947305616, 1152814510864 ]
[ "nonn" ]
A123361
[ 1, 1, 1, 2, 1, -1, 6, 1, -4, 1, 24, -2, -17, 8, -1, 120, -34, -83, 57, -13, 1, 720, -324, -464, 425, -135, 19, -1, 5040, -2988, -2924, 3439, -1370, 268, -26, 1, 40320, -28944, -20404, 30436, -14399, 3514, -476, 34, -1, 362880,...
[ "sign", "tabl" ]