N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A246754	[ 1, 10, 57, 387, 2890, 22934, 189482, 1611056, 13993960, 123579654, 1105747503, 10000000000, 91239358932, 838673386122, 7758099162327, 72158973089377, 674359248152535, 6328590417713813, 59611349660814240, 563355446524384640, 5339735395113039000 ]	[ "nonn", "base" ]
A003177	[ 24, 36, 56, 90, 149, 252, 436, 765, 1363, 2456, 4467, 8190, 15122, 28086, 52428, 98303, 185042, 349524, 662258, 1258290, 2396744, 4575604, 8753330, 16777215, 32212254, 61946643, 119304647, 230087533 ]	[ "nonn" ]
A099192	[ 5, 12, 20, 23, 30, 32, 38, 39, 57, 62, 65, 66, 72, 108, 117, 120, 123, 141, 143, 144, 170, 176, 194, 198, 207, 215, 221, 225, 240, 255, 269, 293, 297, 305, 309, 320, 321, 324, 426, 446, 458, 471, 480, 488, 512, 521, 540, 5...	[ "base", "nonn" ]
A333402	[ 1, 9, 10, 90, 99, 100, 900, 909, 990, 999, 1000, 9000, 9009, 9090, 9900, 9990, 9999, 10000, 90000, 90009, 90090, 90900, 90909, 99000, 99900, 99990, 99999, 100000, 900000, 900009, 900090, 900900, 909000, 909090, 990000, 990099, 999000, 999900,...	[ "nonn", "base" ]
A219123	[ 9, 87, 787, 6981, 63183, 571149, 5167013, 46755215, 423105613, 3828940359, 34650738731, 313579561365, 2837811156791, 25681442217553, 232410308770677, 2103252374190595, 19033883010223092, 172251656124086270 ]	[ "nonn" ]
A115603	[ 1, 10, 14, 30 ]	[ "nonn", "unkn" ]
A020314	[ 87, 247, 403, 589, 1891, 2047, 2611, 4331, 6697, 7657, 7745, 9073, 14689, 14981, 20591, 22177, 25327, 31753, 40501, 49141, 49601, 57313, 57553, 68251, 71857, 111679, 120061, 124279, 187405, 188191, 216457, 221521, 269011, 277369, 280369 ]	[ "nonn" ]
A052600	[ 1, 2, 10, 60, 504, 5040, 61200, 856800, 13749120, 247484160, 4953312000, 108972864000, 2615827737600, 68011521177600, 1904409771264000, 57132293137920000, 1828254303203328000, 62160646308913150000 ]	[ "easy", "nonn" ]
A340973	[ 1, 7, 67, 721, 8179, 95557, 1137709, 13725439, 167204947, 2052215893, 25338173497, 314356676179, 3915672171229, 48938691421627, 613404577267843, 7707619156442401, 97058716523798220, 1224551690144551200 ]	[ "nonn" ]
A002958	[ 2, 3, 8, 12, 15, 27, 48, 89, 137, 666, 1383, 1530, 2102, 8868, 95031, 111768, 130200, 341540 ]	[ "nonn", "hard", "more" ]
A373740	[ 1, 0, 1, 3, 3, 30, 105, 315, 2625, 11340, 57645, 467775, 2505195, 17027010, 142026885, 922296375, 7493911425, 65886420600, 503693415225, 4625660914875, 43369908657075, 379618464975750, 3824934458169825, 38406952928819470, 376103907454500200 ]	[ "nonn" ]
A196935	[ 1, 1, 2, 1, 2, 3, 1, 3, 3, 3, 4, 4, 5, 3, 4, 6, 5, 4, 4, 6, 5, 7, 6, 6, 6, 5, 7, 8, 9, 6, 10, 8, 7, 6, 9, 8, 9, 6, 8, 10, 10, 6, 9, 10, 11, 8, 11, 10, 9, 13, 13, 13, 13, 9, 10, 13, 11, 12, 14, 15, ...	[ "nonn", "easy" ]
A267594	[ 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...	[ "nonn", "tabf", "easy" ]
A291138	[ 3, 14, 42, 210, 3570, 43890, 746130, 14804790, 281291010, 8720021310, 278196808890, 8624101075590, 353588144099190, 25104758231042490, 2234323482562781700, 129325924468711050000, 9.182140637278484e+21, 7.253891103450002e+23, 5.150159222709927e+25 ]	[ "nonn" ]
A196329	[ 1, 1, 1, 2, 7, 2, 3, 10, 10, 3, 5, 23, 27, 23, 5, 8, 49, 68, 68, 49, 8, 13, 98, 206, 295, 206, 98, 13, 21, 209, 573, 1029, 1029, 573, 209, 21, 34, 431, 1596, 3932, 5538, 3932, 1596, 431, 34, 55, 898, 4526, 15029, 27396...	[ "nonn", "tabl" ]
A228791	[ 2, 8, 36, 156, 672, 2892, 12444, 53544, 230388, 991308, 4265376, 18352956, 78968652, 339784392, 1462016004, 6290726844, 27067586208, 116465750508, 501125993916, 2156232718056, 9277785608532, 39920229888492, 171767792616864 ]	[ "nonn" ]
A017819	[ 1, 0, 0, 1, 1, 1, 2, 2, 3, 5, 6, 8, 12, 16, 22, 31, 42, 58, 81, 111, 153, 212, 292, 403, 557, 768, 1060, 1464, 2020, 2788, 3849, 5312, 7332, 10121, 13969, 19281, 26614, 36734, 50703, 69985, 96598, 133332, 184036, 254020, 350618,...	[ "nonn", "easy" ]
A286801	[ 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1...	[ "nonn", "easy" ]
A031847	[ 23479, 31411, 47875, 70087, 79003, 88183, 127327, 132271, 135991, 168479, 173215, 184747, 194539, 196471, 205771, 208555, 227287, 242008, 256583, 269107, 270751, 283624, 313847, 314375, 316543, 324719, 327611, 343312, 344259, 345119, 353659 ]	[ "nonn" ]
A019500	[ 1, 1, 1, 1, 1, 1, 6, 21, 56, 126, 252, 492, 1062, 2667, 7252, 19509, 49824, 121019, 286974, 687384, 1702308, 4357383, 11322408, 29307458, 74897808, 189349041, 477491356, 1211349276, 3103673406, 8017385416, 20780391882, 53812468392, 138999941172, 3585...	[ "nonn" ]
A170672	[ 1, 39, 1482, 56316, 2140008, 81320304, 3090171552, 117426518976, 4462207721088, 169563893401344, 6443427949251072, 244850262071540740, 9304309958718548000, 353563778431304800000, 1.3435423580389584e+22 ]	[ "nonn" ]
A123407	[ 1, 2, 4, 11, 33, 147, 896, 8683, 131332, 3065093 ]	[ "nonn", "more" ]
A247601	[ 2, 1, 13, 31, 73, 181, 443, 2249, 238839, 6473, 30001, 40123, 108539, 251707, 637321, 7554079, 4124437, 241895689, 27067097, 69709723, 179992919, 1019958623, 1208198863, 3140421743, 8179002173 ]	[ "nonn", "more" ]
A290004	[ 3, 72, 1419, 26580, 487839, 8867088, 160391235, 2894149932, 52158948999, 939440707560, 16915155908523, 304519845578052, 5481780715831215, 98675865000853060, 1776199882077972000, 31971906699808313000, 575497100061532300000, 1.0358972816581957e+22 ]	[ "nonn", "easy" ]
A173292	[ 5, 45, 405, 4005, 40010, 400005, 4000005, 40000010, 400000015, 4000000015, 40000000015, 400000000015, 4000000000010, 40000000000015, 400000000000020, -1, -1, -1, 4000000000000000000, 40000000000000000000, -1 ]	[ "base", "sign" ]
A207305	[ 2, 4, 4, 6, 16, 6, 9, 36, 36, 8, 13, 81, 98, 64, 10, 19, 169, 271, 200, 100, 12, 28, 361, 665, 643, 350, 144, 14, 41, 784, 1675, 1759, 1271, 556, 196, 16, 60, 1681, 4344, 4939, 3773, 2239, 826, 256, 18, 88, 3600, 11081, ...	[ "nonn", "tabl" ]
A146582	[ 1, 1, 1, 1, 1, 1, 3, 5, 15, 25, 79, 181, 847, 2349, 14983, 51353, 387131, 1677003, 16440369, 89397803, 1133198975, 7724492549, 124149724539, 1068903623477 ]	[ "nonn" ]
A040967	[ 31, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5,...	[ "nonn", "cofr", "easy" ]
A389842	[ 153, 225, 252, 265, 297, 370, 425, 449, 468, 505, 520, 612, 650, 657, 725, 745, 801, 845, 850, 873, 925, 1000, 1025, 1105, 1125, 1241, 1300, 1305, 1325, 1412, 1450, 1525, 1585, 1625, 1649, 1690, 1700, 1737, 1825, 1853, 1885, 1924, 1...	[ "nonn" ]
A179650	[ 0, 3, 5, 7, 2, 3, 5, 5, 8, 13, 13, 17, 20, 21, 23, 3, 7, 7, 11, 11, 9, 13, 15, 19, 25, 25, 25, 27, 25, 25, 37, 39, 41, 41, 49, 49, 1, 1, 2, 5, 8, 7, 11, 7, 8, 7, 16, 25, 23, 22, 23, 23, 19, 26, 29, 32, 35...	[ "nonn" ]
A290198	[ 1, 2, 5, 13, 30, 62, 126, 254, 510, 1022, 2046, 4094, 8190, 16382, 32766, 65534, 131070, 262142, 524286, 1048574, 2097150, 4194302, 8388606, 16777214, 33554430, 67108862, 134217726, 268435454, 536870910, 1073741822, 2147483646, 4294967294, 8589934590 ]	[ "nonn", "easy" ]
A195104	[ 3, 2, 5, 11, 2, 11, 3, 29, 101, 199, 29, 7, 13, 11, 29, 71, 13, 3, 71, 101, 29, 43, 79, 5, 11, 11, 5, 29, 61, 2, 2, 11, 19, 11, 29, 5, 11, 7, 41, 19, 181, 19, 59, 5, 11, 7, 29, 11, 41, 179, 41, 13, 61, 181, 1...	[ "nonn" ]
A206627	[ 14, 3232, 6885875, 130424683977, 21963397411445576, 3.2883690237686566e+22, 4.3772594487430644e+29, 5.180417901979943e+37, 5.450898143448715e+46 ]	[ "nonn" ]
A003022	[ 1, 3, 6, 11, 17, 25, 34, 44, 55, 72, 85, 106, 127, 151, 177, 199, 216, 246, 283, 333, 356, 372, 425, 480, 492, 553, 585 ]	[ "nonn", "hard", "nice", "more" ]
A220026	[ 1, 1, 12500, 50000, 6250, 16, 3125, 5000, 12500, 25000, 1, 50000, 12500, 50000, 6250, 4, 3125, 12500, 2500, 50000, 1, 50000, 12500, 25000, 1250, 8, 625, 50000, 12500, 50000, 1, 6250, 2500, 12500, 6250, 16, 3125, 50000, 12500, 25000, 1, ...	[ "nonn", "base" ]
A083675	[ 1, 3, 6, 28, 36, 66, 91, 231, 496, 8128, 14196, 15225, 129795, 491536, 780625, 2476425, 33550336, 488265625, 728302695, 7403072040, 8589869056, 101548795116, 134027094930, 137438691328, 5773115351325, 22075617042480, 28642840690815, 61992314210541 ]	[ "nonn" ]
A053138	[ 1, 55, 715, 5005, 24310, 92378, 293930, 817190, 2042975, 4686825, 10015005, 20160075, 38567100, 70607460, 124403620, 211915132, 350343565, 563921995, 886163135, 1362649145, 2054455634, 3042312350, 4431613550, 6358402050, 8996462475, 12565671261, 17341763505 ]	[ "nonn", "easy" ]
A073129	[ 0, 4, 5, 120, 125, 12201, 70800, 74657, 29526432, 37132574, 89210424, 124777688, 120392102955, 48617257062792, 343289046464505, 7519663359716376, 1214022599940709000, 40644839476190310000, 87437200646372850000, 98628693371623950000, 375871306587181940000 ]	[ "nonn" ]
A160880	[ 0, 3, 84, 1995, 45384 ]	[ "nonn" ]
A044559	[ 40, 89, 138, 187, 236, 286, 334, 383, 432, 481, 530, 579, 629, 677, 726, 775, 824, 873, 922, 972, 1020, 1069, 1118, 1167, 1216, 1265, 1315, 1363, 1412, 1461, 1510, 1559, 1608, 1658, 1706, 1755, 1804, 1853, 1902, 1951, 2008 ]	[ "nonn", "base" ]
A081640	[ 14920303, 18224639, 24867247, 26532953, 34548443, 38003011, 39800743, 41319599, 41443483, 45604771, 46432667, 47247763, 49734341, 49734493, 49749439, 51591833, 53014667, 55257977, 59681383, 59700749, 60804817 ]	[ "nonn" ]
A342692	[ 3, 5, 7, 11, 17, 19, 23, 37, 67, 97, 109, 131, 523, 613, 1283, 2207, 2287, 3221, 4259, 4441, 9697, 9949, 11239, 19949, 21713, 23227, 44501, 86249, 110527, 132059, 216103, 756853, 859447, 1257827, 1398281, 2976229, 3021407, 6972607, 13466923...	[ "hard", "less", "nonn" ]
A295734	[ 0, 0, -1, 2, -1, 7, 2, 21, 15, 60, 59, 167, 194, 457, 587, 1236, 1695, 3315, 4754, 8837, 13079, 23452, 35507, 62031, 95490, 163665, 255059, 431012, 677879, 1133467, 1794962, 2977581, 4739775, 7815660, 12489899, 20502167, 32860994, 53756377, ...	[ "easy", "sign" ]
A278665	[ 1, 11, 11, 11, 11, 10011, 110011, 100011, 1000011, 10010011, 101110011, 1010100011, 10101000011, 101010010011, 1010101110011, 10101010100011, 101010101000011, 1010101010010011, 10101010101110012, 101010101010100020, 1010101010101000100, 10101010101010010000 ]	[ "nonn", "easy" ]
A313119	[ 1, 4, 9, 14, 19, 24, 30, 36, 41, 46, 51, 56, 60, 64, 69, 74, 79, 84, 90, 96, 101, 106, 111, 116, 120, 124, 129, 134, 139, 144, 150, 156, 161, 166, 171, 176, 180, 184, 189, 194, 199, 204, 210, 216, 221, 226, 231, 236, 240...	[ "nonn" ]
A268838	[ 1, 4, 756, 45696, 2955700, 560028096, 126412047692, 93784124187136 ]	[ "nonn", "more" ]
A318647	[ 0, 1, 11, 101, 12, 51, 13, 41, 501, 111, 103, 14, 15, 30, 21, 121, 131, 141, 102, 53, 17, 23, 5, 61, 201, 16, 211, 151, 113, 161, 107, 221, 105, 2, 115, 123, 171, 18, 91, 31, 52, 3, 40, 71, 104, 42, 181, 191, 125, 301,...	[ "base", "nonn" ]
A237572	[ 103264, 4146324, 173478980, 7415425124, 313460630304, 13253873415032, 561018557350096, 23744013911896430, 1004820307993854500, 42525851524551540000, 1.799676836916462e+21, 7.616199958668451e+22 ]	[ "nonn" ]
A378349	[ 0, 6, 7, 1, 842, 5, 11, 2, 1, 4, 1, 12, 1.217611913245203e+90, 39, 1, 13, 19, 1, 1, 2, 1, 6, 1, 4, 9, 1, 2, 1, 3, 2, 1, 223, 2, 1 ]	[ "nonn", "cofr" ]
A131378	[ 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0...	[ "easy", "nonn" ]
A283579	[ 1, 1, 17, 746, 66418, 9843707, 2187941520, 680615139257, 282199700198462, 150389915598653920, 100155578743010740000, 8.150557751272071e+22, 7.95800896894325e+25, 9.181429971376174e+28 ]	[ "nonn" ]
A345964	[ 2, 3, 4, 5, 6, 7, 8, 9, 100, 1, 15, 160, 20, 210, 25, 260, 30, 310, 35, 360, 40, 410, 44, 50, 43, 55, 102, 65, 60, 62, 616, 306, 68, 690, 73, 740, 77, 80, 810, 76, 87, 88, 91, 920, 96, 970, 110, 1030, 111, 511, 120, ...	[ "base", "nonn" ]
A264210	[ 64, 3600, 202500, 6444000, 205062400, 7664479280, 286470082441, 10230591902180, 365361051936400, 13232462572921540, 479246665225415000, 17287771862947893000, 623618436332279800000, 2.2524831425285056e+22 ]	[ "nonn" ]
A233899	[ 2688, 12152, 47232, 267792, 1194976, 8198512, 39075520, 304813760, 1473291680, 12478506368, 59636481088, 535236270096, 2503920262432, 23537439554576, 107432965882112, 1051469946423328, 4680802226580960, 47517003414905180 ]	[ "nonn" ]
A371762	[ 1, 0, 1, 0, 1, 2, 0, 1, 7, 6, 0, 1, 19, 46, 24, 0, 1, 46, 251, 326, 120, 0, 1, 104, 1163, 3016, 2556, 720, 0, 1, 225, 4831, 23283, 35848, 22212, 5040, 0, 1, 473, 18523, 158531, 417148, 437228, 212976, 40320, 0, 1, 976, 6...	[ "nonn", "tabl" ]
A326003	[ 1, 3, 9, 10, 27, 21, 64, 36, 105, 85, 171, 78, 359, 105, 372, 346, 573, 171, 1105, 210, 1116, 1009, 1134, 300, 3237, 456, 1743, 2386, 3375, 465, 5947, 528, 5529, 4885, 3537, 1926, 14917, 741, 4770, 9010, 16551, 903, 17963, 990, ...	[ "nonn" ]
A227086	[ 7, 29, 99, 302, 842, 2177, 5281, 12128, 26548, 55684, 112389, 219051, 413531, 758154, 1353017, 2355283, 4006629, 6671623, 10890535, 17450956, 27483624, 42589055, 65002969, 97810106, 145217866, 212903302, 308449369, 441889009, 626378657 ]	[ "nonn" ]
A053342	[ 41, 1, 1, 2, 1, 1, 2, 1, 2, 1, 8, 1, 1, 27, 5, 6, 5, 27, 1, 1, 8, 1, 2, 1, 2, 1, 1, 2, 1, 1, 82, 1, 1, 2, 1, 1, 2, 1, 2, 1, 8, 1, 1, 27, 5, 6, 5, 27, 1, 1, 8, 1, 2, 1, 2, 1, 1, 2, 1, 1, 82, 1, ...	[ "nonn", "cofr" ]
A230663	[ 2, 67, 3, 349, 79, 439, 21559, 14713, 13, 8123233, 223, 3468214093, 1701300344203, 11613197109589, 19 ]	[ "nonn", "more" ]
A382610	[ 0, 6, 6, 30, 84, 330, 1224, 4914, 19866, 82110, 341880, 1433790, 6034320, 25461774, 107592030, 455078910, 1925933100, 8153659170, 34527059160, 146226569946, 619340796690, 2623347596766, 11112097049136, 47070075918390, 199388054716704, 844610917608150, 357780193827...	[ "nonn", "easy", "changed" ]
A302174	[ 1, 2, 27, 256, 472392, 262144, 13759414272, 4294967296, 4057816381784064 ]	[ "nonn", "more" ]
A103628	[ 0, 1, 2, 6, 10, 21, 33, 59, 89, 145, 212, 325, 463, 680, 948, 1348, 1845, 2558, 3446, 4681, 6219, 8306, 10901, 14352, 18632, 24230, 31151, 40077, 51074, 65088, 82290, 103986, 130517, 163679, 204078, 254174, 314975, 389839, 480369, 591133,...	[ "easy", "nonn" ]
A178369	[ 9, 89, 98, 99, 799, 889, 898, 899, 979, 988, 989, 997, 998, 999, 6999, 7899, 7989, 7998, 7999, 8799, 8889, 8898, 8899, 8979, 8988, 8989, 8997, 8998, 8999, 9699, 9789, 9798, 9799, 9879, 9888, 9889, 9897, 9898, 9899, 9969, 9978, 9979, ...	[ "base", "nonn" ]
A279093	[ 178, 300, 373, 676, 1111, 1702, 2473, 3448, 4651, 6106, 7837, 9868, 12223, 14926, 18001, 21472, 25363, 29698, 34501, 39796, 45607, 51958, 58873, 66376, 74491, 83242, 92653, 102748, 113551, 125086, 137377, 150448, 164323, 179026, 194581, 211012, ...	[ "nonn", "base" ]
A319705	[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 11, 13, 14, 15, 5, 16, 11, 17, 18, 19, 20, 21, 22, 23, 24, 25, 20, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 33, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 38, 48, 49...	[ "nonn" ]
A078002	[ 1, 1, 1, -1, -5, -11, -15, -9, 19, 77, 153, 191, 75, -347, -1151, -2105, -2365, -323, 5929, 16911, 28539, 28309, -5743, -96873, -244621, -380883, -323399, 223327, 1531819, 3487109, 4995745, 3440743, -5088477, -23609187, -49011383, -64236625, -3...	[ "sign" ]
A381978	[ 6, 4, 10, 6, 6, 6, 12, 8, 8, 12, 10, 10, 12, 12, 12, 12, 12, 14, 24, 16, 16, 18, 16, 18, 18, 20, 20, 18, 20, 20, 24, 24, 24, 24, 24, 26, 24, 28, 24, 30, 28, 30, 30, 28, 30, 30, 32, 34, 36, 30, 32, 36, 36, 38, ...	[ "nonn" ]
A389700	[ 31, 51, 135, 148, 976, 10048, 34335, 138496, 449295, 33673216, 537346048, 8591835136, 4439852974095, 35184493723648, 1956860570050575, 9007201200898048, 221753180448460800, 747406020889133800, 36893488271973155000, 9.444732967732155e+21 ]	[ "nonn" ]
A157424	[ 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 2, 1, 0, 1, 0, 0, 3, 0, 1, 0, 1, 0, 0, 5, 1, 0, 1, 0, 1, 0, 0, 7, 1, 1, 0, 1, 0, 3, 0, 0, 11, 1, 1, 1, 0, 2, 0, 5, 0, 0, 0, 17, 0, 1, 1, 1, 0, 3, 0, ...	[ "nonn", "tabl" ]
A068827	[ 2, 3, 5, 7, 89, 127, 919, 1237, 8923, 8929, 8969, 12347, 89123, 89137, 89189, 89237, 89269, 89293, 89393, 89459, 89491, 89567, 89591, 89597, 89689, 89797, 89891, 89897, 91237, 91249, 123457, 891239, 891349, 891379, 891389, 891391 ]	[ "nonn", "base" ]
A299950	[ 1, 96, 16128, 7622784, 2900355072, 1319081479488, 592274331915264, 278167185566287100, 131973896384326000000, 6.371232745068675e+22, 3.1055582715009234e+25, 1.5282363171869403e+28, 7.574187854327285e+30 ]	[ "nonn" ]
A345239	[ 61, 83, 113, 139, 257, 271, 353, 383, 409, 647, 751, 773, 787, 829, 953, 991, 1069, 1307, 1321, 1409, 1433, 1553, 1583, 1627, 1699, 1789, 1801, 1811, 1907, 1913, 1973, 2029, 2069, 2131, 2297, 2311, 2371, 2417, 2447, 2477, 2551, 2633, ...	[ "nonn" ]
A031776	[ 2402, 9606, 21612, 38420, 60030, 86442, 117656, 153672, 194490, 240110, 290532, 345756, 405782, 470610, 540240, 614672, 693906, 777942, 866780, 960420, 1058862, 1162106, 1270152, 1383000, 1500650, 1623102, 1750356, 1882412, 2019270, 2160930 ]	[ "nonn" ]
A185183	[ 1, 1, 2, 10, 72, 672, 7640, 102072, 1564864, 27064448, 521248320, 11064781760, 256702399360, 6462978471168, 175520877380992, 5115062135795584, 159227683153536000, 5273353734210310000, 185143079148664100000, 6.86906251311176e+21 ]	[ "nonn" ]
A199725	[ 1, 4, 9, 2, 4, 6, 3, 2, 3, 9, 8, 0, 6, 3, 7, 8, 6, 7, 2, 0, 7, 0, 4, 0, 6, 5, 8, 9, 5, 2, 8, 0, 4, 3, 7, 9, 9, 0, 6, 1, 7, 7, 3, 6, 3, 5, 7, 2, 8, 3, 4, 3, 9, 2, 8, 5, 2, 5, 8, 7, 8, 2, 8, 0...	[ "nonn", "cons" ]
A149812	[ 1, 2, 4, 10, 26, 71, 213, 656, 2043, 6510, 21185, 69751, 232653, 785663, 2669329, 9132465, 31519477, 109446096, 381688232, 1337901064, 4711210673, 16648931593, 59052004172, 210185465527, 750190870068, 2684593024346, 9633007467277, 34647424892614, 1248757174332...	[ "nonn", "walk" ]
A017223	[ 125, 2744, 12167, 32768, 68921, 125000, 205379, 314432, 456533, 636056, 857375, 1124864, 1442897, 1815848, 2248091, 2744000, 3307949, 3944312, 4657463, 5451776, 6331625, 7301384, 8365427 ]	[ "nonn", "easy" ]
A347108	[ 3, 24, 72, 177, 285, 621, 813, 1278, 1785, 2541, 2973, 4653, 5241, 6585, 8313, 10266, 11238, 14787, 15987, 19767, 22839, 25863, 27591, 35031, 37914, 42030, 46830, 53550, 56250, 68346, 71418, 79419, 86331, 93135, 100047, 117792, 122124, 130524...	[ "nonn" ]
A061201	[ 1, 4, 7, 13, 16, 25, 28, 38, 44, 53, 56, 74, 77, 86, 95, 110, 113, 131, 134, 152, 161, 170, 173, 203, 209, 218, 228, 246, 249, 276, 279, 300, 309, 318, 327, 363, 366, 375, 384, 414, 417, 444, 447, 465, 483, 492, 495, 540, ...	[ "easy", "nonn" ]
A173419	[ 0, 1, 2, 2, 3, 3, 4, 3, 3, 4, 4, 4, 5, 4, 4, 3, 4, 4, 5, 4, 5, 5, 5, 4, 4, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 6, 5, 6, 6, 5, 6, 6, 5, 5, 5, 6, 6, 6, 5, 6, 5, 6, 6, 6, 5, 6, 5, 5, 4...	[ "nice", "nonn" ]
A255102	[ 66, 168, 441, 1137, 2907, 7498, 19338, 49698, 127871, 329325, 847491, 2180700, 5613144, 14447250, 37180603, 95692059, 246288681, 633868172, 1631378124, 4198705332, 10806224445, 27811942767, 71579710341, 184225016494 ]	[ "nonn" ]
A061404	[ 3840, 92160, 5160960, 495452160, 71345111040, 14269022208000, 3767021862912000, 1265719345938432000, 526539247910387700000, 2.653757809468354e+23, 1.5922546856810124e+26 ]	[ "nonn", "easy" ]
A311635	[ 1, 4, 8, 12, 18, 24, 30, 36, 42, 46, 50, 54, 58, 62, 66, 72, 78, 84, 90, 96, 100, 104, 108, 112, 116, 120, 126, 132, 138, 144, 150, 154, 158, 162, 166, 170, 174, 180, 186, 192, 198, 204, 208, 212, 216, 220, 224, 228, 234...	[ "nonn" ]
A158094	[ 1, 2, 4, 20, 92, 580, 4156, 34372, 314348, 3204116, 35703996, 433587396, 5687955724, 80265513140, 1211781628060, 19497537309028, 333041104402860, 6019819589363348, 114794574818830720, 2303337794614783200 ]	[ "nonn" ]
A309415	[ 1, 1, 1, 1, 2, 6, 6, 12, 60, 360, 1260, 10080, 15120, 25200, 1247400, 32432400, 12612600, 6810804000, 7264857600, 185253868800, 1005663859200, 1117404288000, 4839757322400, 93504111468768000, 37401644587507200, 160787493266400000, 13023786954578400000 ]	[ "nonn", "base" ]
A229309	[ 10, 26, 43, 55, 57, 58, 136, 155, 222, 253, 355, 381, 737, 876, 904, 1027, 1055, 1081, 1552, 1711, 1751, 1962, 2696, 2758, 3197, 3403, 3411, 3775, 3916, 4063, 4401, 5093, 5671, 6176, 6567, 7111, 8251, 8515, 8702, 9316, 9465, 10768, ...	[ "nonn" ]
A302494	[ 1, 2, 3, 5, 6, 10, 11, 13, 15, 17, 22, 26, 29, 30, 31, 33, 34, 39, 41, 43, 47, 51, 55, 58, 59, 62, 65, 66, 67, 73, 78, 79, 82, 83, 85, 86, 87, 93, 94, 101, 102, 109, 110, 113, 118, 123, 127, 129, 130, 134, 137, 139...	[ "nonn" ]
A287518	[ 2, 4, 9, 10, 14, 18, 20, 24, 25, 28, 32, 36, 38, 40, 45, 47, 51, 52, 56, 58, 63, 65, 69, 70, 73, 77, 81, 82, 86, 90, 92, 94, 99, 101, 105, 106, 110, 112, 117, 118, 122, 126, 128, 132, 133, 137, 139, 144, 146, 150, 15...	[ "nonn", "easy" ]
A050791	[ 12, 103, 150, 249, 495, 738, 1544, 1852, 1988, 2316, 4184, 5262, 5640, 8657, 9791, 9953, 11682, 14258, 21279, 21630, 31615, 36620, 36888, 38599, 38823, 40362, 41485, 47584, 57978, 59076, 63086, 73967, 79273, 83711, 83802, 86166, 90030 ]	[ "nonn", "nice" ]
A262695	[ 0, 4, 0, 3, 2, 2, 0, 1, 1, 24, 3, 23, 0, 1, 2, 22, 2, 21, 0, 1, 1, 20, 0, 19, 1, 1, 3, 18, 1, 17, 0, 16, 2, 1, 0, 15, 1, 1, 10, 14, 1, 2, 0, 1, 2, 13, 0, 12, 9, 1, 1, 11, 1, 10, 0, 1, 1, 9, 0, 8, ...	[ "nonn" ]
A041168	[ 9, 10, 29, 97, 126, 223, 1241, 1464, 12953, 14417, 85038, 99455, 184493, 652934, 1490361, 2143295, 40069671, 42212966, 124495603, 415699775, 540195378, 955895153, 5319671143, 6275566296, 55524201511 ]	[ "nonn", "cofr", "frac", "easy" ]
A301451	[ 1, 7, 10, 16, 19, 25, 28, 34, 37, 43, 46, 52, 55, 61, 64, 70, 73, 79, 82, 88, 91, 97, 100, 106, 109, 115, 118, 124, 127, 133, 136, 142, 145, 151, 154, 160, 163, 169, 172, 178, 181, 187, 190, 196, 199, 205, 208, 214, 217,...	[ "nonn", "easy" ]
A231294	[ 1, 5, 69, 1934, 103456, 10359556, 1965819189, 700770072586, 465403714589817 ]	[ "nonn" ]
A131229	[ 1, 7, 11, 17, 21, 27, 31, 37, 41, 47, 51, 57, 61, 67, 71, 77, 81, 87, 91, 97, 101, 107, 111, 117, 121, 127, 131, 137, 141, 147, 151, 157, 161, 167, 171, 177, 181, 187, 191, 197, 201, 207, 211, 217, 221, 227, 231, 237, 24...	[ "nonn", "easy" ]
A104429	[ 1, 1, 2, 5, 15, 55, 232, 1161, 6643, 44566, 327064, 2709050, 24312028, 240833770, 2546215687, 29251369570, 355838858402, 4658866773664, 64127566159756, 940320691236206 ]	[ "nonn", "nice", "more" ]
A155857	[ 1, 2, 6, 23, 107, 590, 3786, 27821, 230869, 2137978, 21873854, 245151555, 2987967551, 39358156310, 557259550034, 8440866957273, 136211005966889, 2333068710452146, 42276699542130170, 808068680469402100, 16248405328930780000, 342877404288485750000, 7.576652528705019e+21 ]	[ "nonn", "easy" ]
A090192	[ 1, 1, 0, -1, 0, 2, 0, -5, 0, 14, 0, -42, 0, 132, 0, -429, 0, 1430, 0, -4862, 0, 16796, 0, -58786, 0, 208012, 0, -742900, 0, 2674440, 0, -9694845, 0, 35357670, 0, -129644790, 0, 477638700, 0, -1767263190, 0, 6564120420, 0, -2446626...	[ "sign" ]
A020630	[ 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 53, 59, 61, 71, 73, 79, 97, 101, 107, 113, 127, 131, 163, 179, 199, 211, 223, 239, 257, 269, 307, 347, 359, 409, 541, 557, 601, 647, 719, 881, 971, 1151, 1187, 1481, 1619, 1907...	[ "nonn", "fini", "full" ]
A163686	[ 1, 5, 17, 39, 83, 175, 375, 807, 1732, 3690, 7805, 16441, 34605, 72893, 153653, 323917, 682654, 1438292, 3030059, 6383675, 13449863, 28338555, 59708355, 125801331, 265051912, 558439806, 1176585241, 2478972461, 5223002977, 11004454185 ]	[ "nonn" ]
A351040	[ 1, 1, 2, 1, 3, 2, 4, 1, 5, 3, 6, 2, 7, 4, 8, 1, 9, 5, 10, 3, 11, 6, 12, 2, 13, 7, 14, 4, 15, 8, 16, 1, 17, 9, 17, 5, 18, 10, 19, 3, 20, 11, 21, 6, 22, 12, 23, 2, 24, 13, 25, 7, 26, 14, 25, 4, 27, 15, ...	[ "nonn", "easy" ]

A246754

[ 1, 10, 57, 387, 2890, 22934, 189482, 1611056, 13993960, 123579654, 1105747503, 10000000000, 91239358932, 838673386122, 7758099162327, 72158973089377, 674359248152535, 6328590417713813, 59611349660814240, 563355446524384640, 5339735395113039000 ]

[ "nonn", "base" ]

A003177

[ 24, 36, 56, 90, 149, 252, 436, 765, 1363, 2456, 4467, 8190, 15122, 28086, 52428, 98303, 185042, 349524, 662258, 1258290, 2396744, 4575604, 8753330, 16777215, 32212254, 61946643, 119304647, 230087533 ]

[ "nonn" ]

A099192

[ 5, 12, 20, 23, 30, 32, 38, 39, 57, 62, 65, 66, 72, 108, 117, 120, 123, 141, 143, 144, 170, 176, 194, 198, 207, 215, 221, 225, 240, 255, 269, 293, 297, 305, 309, 320, 321, 324, 426, 446, 458, 471, 480, 488, 512, 521, 540, 5...

[ "base", "nonn" ]

A333402

[ 1, 9, 10, 90, 99, 100, 900, 909, 990, 999, 1000, 9000, 9009, 9090, 9900, 9990, 9999, 10000, 90000, 90009, 90090, 90900, 90909, 99000, 99900, 99990, 99999, 100000, 900000, 900009, 900090, 900900, 909000, 909090, 990000, 990099, 999000, 999900,...

[ "nonn", "base" ]

A219123

[ 9, 87, 787, 6981, 63183, 571149, 5167013, 46755215, 423105613, 3828940359, 34650738731, 313579561365, 2837811156791, 25681442217553, 232410308770677, 2103252374190595, 19033883010223092, 172251656124086270 ]

[ "nonn" ]

A115603

[ 1, 10, 14, 30 ]

[ "nonn", "unkn" ]

A020314

[ 87, 247, 403, 589, 1891, 2047, 2611, 4331, 6697, 7657, 7745, 9073, 14689, 14981, 20591, 22177, 25327, 31753, 40501, 49141, 49601, 57313, 57553, 68251, 71857, 111679, 120061, 124279, 187405, 188191, 216457, 221521, 269011, 277369, 280369 ]

[ "nonn" ]

A052600

[ 1, 2, 10, 60, 504, 5040, 61200, 856800, 13749120, 247484160, 4953312000, 108972864000, 2615827737600, 68011521177600, 1904409771264000, 57132293137920000, 1828254303203328000, 62160646308913150000 ]

[ "easy", "nonn" ]

A340973

[ 1, 7, 67, 721, 8179, 95557, 1137709, 13725439, 167204947, 2052215893, 25338173497, 314356676179, 3915672171229, 48938691421627, 613404577267843, 7707619156442401, 97058716523798220, 1224551690144551200 ]

[ "nonn" ]

A002958

[ 2, 3, 8, 12, 15, 27, 48, 89, 137, 666, 1383, 1530, 2102, 8868, 95031, 111768, 130200, 341540 ]

[ "nonn", "hard", "more" ]

A373740

[ 1, 0, 1, 3, 3, 30, 105, 315, 2625, 11340, 57645, 467775, 2505195, 17027010, 142026885, 922296375, 7493911425, 65886420600, 503693415225, 4625660914875, 43369908657075, 379618464975750, 3824934458169825, 38406952928819470, 376103907454500200 ]

[ "nonn" ]

A196935

[ 1, 1, 2, 1, 2, 3, 1, 3, 3, 3, 4, 4, 5, 3, 4, 6, 5, 4, 4, 6, 5, 7, 6, 6, 6, 5, 7, 8, 9, 6, 10, 8, 7, 6, 9, 8, 9, 6, 8, 10, 10, 6, 9, 10, 11, 8, 11, 10, 9, 13, 13, 13, 13, 9, 10, 13, 11, 12, 14, 15, ...

[ "nonn", "easy" ]

A267594

[ 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...

[ "nonn", "tabf", "easy" ]

A291138

[ 3, 14, 42, 210, 3570, 43890, 746130, 14804790, 281291010, 8720021310, 278196808890, 8624101075590, 353588144099190, 25104758231042490, 2234323482562781700, 129325924468711050000, 9.182140637278484e+21, 7.253891103450002e+23, 5.150159222709927e+25 ]

[ "nonn" ]

A196329

[ 1, 1, 1, 2, 7, 2, 3, 10, 10, 3, 5, 23, 27, 23, 5, 8, 49, 68, 68, 49, 8, 13, 98, 206, 295, 206, 98, 13, 21, 209, 573, 1029, 1029, 573, 209, 21, 34, 431, 1596, 3932, 5538, 3932, 1596, 431, 34, 55, 898, 4526, 15029, 27396...

[ "nonn", "tabl" ]

A228791

[ 2, 8, 36, 156, 672, 2892, 12444, 53544, 230388, 991308, 4265376, 18352956, 78968652, 339784392, 1462016004, 6290726844, 27067586208, 116465750508, 501125993916, 2156232718056, 9277785608532, 39920229888492, 171767792616864 ]

[ "nonn" ]

A017819

[ 1, 0, 0, 1, 1, 1, 2, 2, 3, 5, 6, 8, 12, 16, 22, 31, 42, 58, 81, 111, 153, 212, 292, 403, 557, 768, 1060, 1464, 2020, 2788, 3849, 5312, 7332, 10121, 13969, 19281, 26614, 36734, 50703, 69985, 96598, 133332, 184036, 254020, 350618,...

[ "nonn", "easy" ]

A286801

[ 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1...

[ "nonn", "easy" ]

A031847

[ 23479, 31411, 47875, 70087, 79003, 88183, 127327, 132271, 135991, 168479, 173215, 184747, 194539, 196471, 205771, 208555, 227287, 242008, 256583, 269107, 270751, 283624, 313847, 314375, 316543, 324719, 327611, 343312, 344259, 345119, 353659 ]

[ "nonn" ]

A019500

[ 1, 1, 1, 1, 1, 1, 6, 21, 56, 126, 252, 492, 1062, 2667, 7252, 19509, 49824, 121019, 286974, 687384, 1702308, 4357383, 11322408, 29307458, 74897808, 189349041, 477491356, 1211349276, 3103673406, 8017385416, 20780391882, 53812468392, 138999941172, 3585...

[ "nonn" ]

A170672

[ 1, 39, 1482, 56316, 2140008, 81320304, 3090171552, 117426518976, 4462207721088, 169563893401344, 6443427949251072, 244850262071540740, 9304309958718548000, 353563778431304800000, 1.3435423580389584e+22 ]

[ "nonn" ]

A123407

[ 1, 2, 4, 11, 33, 147, 896, 8683, 131332, 3065093 ]

[ "nonn", "more" ]

A247601

[ 2, 1, 13, 31, 73, 181, 443, 2249, 238839, 6473, 30001, 40123, 108539, 251707, 637321, 7554079, 4124437, 241895689, 27067097, 69709723, 179992919, 1019958623, 1208198863, 3140421743, 8179002173 ]

[ "nonn", "more" ]

A290004

[ 3, 72, 1419, 26580, 487839, 8867088, 160391235, 2894149932, 52158948999, 939440707560, 16915155908523, 304519845578052, 5481780715831215, 98675865000853060, 1776199882077972000, 31971906699808313000, 575497100061532300000, 1.0358972816581957e+22 ]

[ "nonn", "easy" ]

A173292

[ 5, 45, 405, 4005, 40010, 400005, 4000005, 40000010, 400000015, 4000000015, 40000000015, 400000000015, 4000000000010, 40000000000015, 400000000000020, -1, -1, -1, 4000000000000000000, 40000000000000000000, -1 ]

[ "base", "sign" ]

A207305

[ 2, 4, 4, 6, 16, 6, 9, 36, 36, 8, 13, 81, 98, 64, 10, 19, 169, 271, 200, 100, 12, 28, 361, 665, 643, 350, 144, 14, 41, 784, 1675, 1759, 1271, 556, 196, 16, 60, 1681, 4344, 4939, 3773, 2239, 826, 256, 18, 88, 3600, 11081, ...

[ "nonn", "tabl" ]

A146582

[ 1, 1, 1, 1, 1, 1, 3, 5, 15, 25, 79, 181, 847, 2349, 14983, 51353, 387131, 1677003, 16440369, 89397803, 1133198975, 7724492549, 124149724539, 1068903623477 ]

[ "nonn" ]

A040967

[ 31, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5, 2, 5, 1, 6, 5, 1, 1, 1, 1, 62, 1, 1, 1, 1, 5, 6, 1, 5,...

[ "nonn", "cofr", "easy" ]

A389842

[ 153, 225, 252, 265, 297, 370, 425, 449, 468, 505, 520, 612, 650, 657, 725, 745, 801, 845, 850, 873, 925, 1000, 1025, 1105, 1125, 1241, 1300, 1305, 1325, 1412, 1450, 1525, 1585, 1625, 1649, 1690, 1700, 1737, 1825, 1853, 1885, 1924, 1...

[ "nonn" ]

A179650

[ 0, 3, 5, 7, 2, 3, 5, 5, 8, 13, 13, 17, 20, 21, 23, 3, 7, 7, 11, 11, 9, 13, 15, 19, 25, 25, 25, 27, 25, 25, 37, 39, 41, 41, 49, 49, 1, 1, 2, 5, 8, 7, 11, 7, 8, 7, 16, 25, 23, 22, 23, 23, 19, 26, 29, 32, 35...

[ "nonn" ]

A290198

[ 1, 2, 5, 13, 30, 62, 126, 254, 510, 1022, 2046, 4094, 8190, 16382, 32766, 65534, 131070, 262142, 524286, 1048574, 2097150, 4194302, 8388606, 16777214, 33554430, 67108862, 134217726, 268435454, 536870910, 1073741822, 2147483646, 4294967294, 8589934590 ]

[ "nonn", "easy" ]

A195104

[ 3, 2, 5, 11, 2, 11, 3, 29, 101, 199, 29, 7, 13, 11, 29, 71, 13, 3, 71, 101, 29, 43, 79, 5, 11, 11, 5, 29, 61, 2, 2, 11, 19, 11, 29, 5, 11, 7, 41, 19, 181, 19, 59, 5, 11, 7, 29, 11, 41, 179, 41, 13, 61, 181, 1...

[ "nonn" ]

A206627

[ 14, 3232, 6885875, 130424683977, 21963397411445576, 3.2883690237686566e+22, 4.3772594487430644e+29, 5.180417901979943e+37, 5.450898143448715e+46 ]

[ "nonn" ]

A003022

[ 1, 3, 6, 11, 17, 25, 34, 44, 55, 72, 85, 106, 127, 151, 177, 199, 216, 246, 283, 333, 356, 372, 425, 480, 492, 553, 585 ]

[ "nonn", "hard", "nice", "more" ]

A220026

[ 1, 1, 12500, 50000, 6250, 16, 3125, 5000, 12500, 25000, 1, 50000, 12500, 50000, 6250, 4, 3125, 12500, 2500, 50000, 1, 50000, 12500, 25000, 1250, 8, 625, 50000, 12500, 50000, 1, 6250, 2500, 12500, 6250, 16, 3125, 50000, 12500, 25000, 1, ...

[ "nonn", "base" ]

A083675

[ 1, 3, 6, 28, 36, 66, 91, 231, 496, 8128, 14196, 15225, 129795, 491536, 780625, 2476425, 33550336, 488265625, 728302695, 7403072040, 8589869056, 101548795116, 134027094930, 137438691328, 5773115351325, 22075617042480, 28642840690815, 61992314210541 ]

[ "nonn" ]

A053138

[ 1, 55, 715, 5005, 24310, 92378, 293930, 817190, 2042975, 4686825, 10015005, 20160075, 38567100, 70607460, 124403620, 211915132, 350343565, 563921995, 886163135, 1362649145, 2054455634, 3042312350, 4431613550, 6358402050, 8996462475, 12565671261, 17341763505 ]

[ "nonn", "easy" ]

A073129

[ 0, 4, 5, 120, 125, 12201, 70800, 74657, 29526432, 37132574, 89210424, 124777688, 120392102955, 48617257062792, 343289046464505, 7519663359716376, 1214022599940709000, 40644839476190310000, 87437200646372850000, 98628693371623950000, 375871306587181940000 ]

[ "nonn" ]

A160880

[ 0, 3, 84, 1995, 45384 ]

[ "nonn" ]

A044559

[ 40, 89, 138, 187, 236, 286, 334, 383, 432, 481, 530, 579, 629, 677, 726, 775, 824, 873, 922, 972, 1020, 1069, 1118, 1167, 1216, 1265, 1315, 1363, 1412, 1461, 1510, 1559, 1608, 1658, 1706, 1755, 1804, 1853, 1902, 1951, 2008 ]

[ "nonn", "base" ]

A081640

[ 14920303, 18224639, 24867247, 26532953, 34548443, 38003011, 39800743, 41319599, 41443483, 45604771, 46432667, 47247763, 49734341, 49734493, 49749439, 51591833, 53014667, 55257977, 59681383, 59700749, 60804817 ]

[ "nonn" ]

A342692

[ 3, 5, 7, 11, 17, 19, 23, 37, 67, 97, 109, 131, 523, 613, 1283, 2207, 2287, 3221, 4259, 4441, 9697, 9949, 11239, 19949, 21713, 23227, 44501, 86249, 110527, 132059, 216103, 756853, 859447, 1257827, 1398281, 2976229, 3021407, 6972607, 13466923...

[ "hard", "less", "nonn" ]

A295734

[ 0, 0, -1, 2, -1, 7, 2, 21, 15, 60, 59, 167, 194, 457, 587, 1236, 1695, 3315, 4754, 8837, 13079, 23452, 35507, 62031, 95490, 163665, 255059, 431012, 677879, 1133467, 1794962, 2977581, 4739775, 7815660, 12489899, 20502167, 32860994, 53756377, ...

[ "easy", "sign" ]

A278665

[ 1, 11, 11, 11, 11, 10011, 110011, 100011, 1000011, 10010011, 101110011, 1010100011, 10101000011, 101010010011, 1010101110011, 10101010100011, 101010101000011, 1010101010010011, 10101010101110012, 101010101010100020, 1010101010101000100, 10101010101010010000 ]

[ "nonn", "easy" ]

A313119

[ 1, 4, 9, 14, 19, 24, 30, 36, 41, 46, 51, 56, 60, 64, 69, 74, 79, 84, 90, 96, 101, 106, 111, 116, 120, 124, 129, 134, 139, 144, 150, 156, 161, 166, 171, 176, 180, 184, 189, 194, 199, 204, 210, 216, 221, 226, 231, 236, 240...

[ "nonn" ]

A268838

[ 1, 4, 756, 45696, 2955700, 560028096, 126412047692, 93784124187136 ]

[ "nonn", "more" ]

A318647

[ 0, 1, 11, 101, 12, 51, 13, 41, 501, 111, 103, 14, 15, 30, 21, 121, 131, 141, 102, 53, 17, 23, 5, 61, 201, 16, 211, 151, 113, 161, 107, 221, 105, 2, 115, 123, 171, 18, 91, 31, 52, 3, 40, 71, 104, 42, 181, 191, 125, 301,...

[ "base", "nonn" ]

A237572

[ 103264, 4146324, 173478980, 7415425124, 313460630304, 13253873415032, 561018557350096, 23744013911896430, 1004820307993854500, 42525851524551540000, 1.799676836916462e+21, 7.616199958668451e+22 ]

[ "nonn" ]

A378349

[ 0, 6, 7, 1, 842, 5, 11, 2, 1, 4, 1, 12, 1.217611913245203e+90, 39, 1, 13, 19, 1, 1, 2, 1, 6, 1, 4, 9, 1, 2, 1, 3, 2, 1, 223, 2, 1 ]

[ "nonn", "cofr" ]

A131378

[ 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0...

[ "easy", "nonn" ]

A283579

[ 1, 1, 17, 746, 66418, 9843707, 2187941520, 680615139257, 282199700198462, 150389915598653920, 100155578743010740000, 8.150557751272071e+22, 7.95800896894325e+25, 9.181429971376174e+28 ]

[ "nonn" ]

A345964

[ 2, 3, 4, 5, 6, 7, 8, 9, 100, 1, 15, 160, 20, 210, 25, 260, 30, 310, 35, 360, 40, 410, 44, 50, 43, 55, 102, 65, 60, 62, 616, 306, 68, 690, 73, 740, 77, 80, 810, 76, 87, 88, 91, 920, 96, 970, 110, 1030, 111, 511, 120, ...

[ "base", "nonn" ]

A264210

[ 64, 3600, 202500, 6444000, 205062400, 7664479280, 286470082441, 10230591902180, 365361051936400, 13232462572921540, 479246665225415000, 17287771862947893000, 623618436332279800000, 2.2524831425285056e+22 ]

[ "nonn" ]

A233899

[ 2688, 12152, 47232, 267792, 1194976, 8198512, 39075520, 304813760, 1473291680, 12478506368, 59636481088, 535236270096, 2503920262432, 23537439554576, 107432965882112, 1051469946423328, 4680802226580960, 47517003414905180 ]

[ "nonn" ]

A371762

[ 1, 0, 1, 0, 1, 2, 0, 1, 7, 6, 0, 1, 19, 46, 24, 0, 1, 46, 251, 326, 120, 0, 1, 104, 1163, 3016, 2556, 720, 0, 1, 225, 4831, 23283, 35848, 22212, 5040, 0, 1, 473, 18523, 158531, 417148, 437228, 212976, 40320, 0, 1, 976, 6...

[ "nonn", "tabl" ]

A326003

[ 1, 3, 9, 10, 27, 21, 64, 36, 105, 85, 171, 78, 359, 105, 372, 346, 573, 171, 1105, 210, 1116, 1009, 1134, 300, 3237, 456, 1743, 2386, 3375, 465, 5947, 528, 5529, 4885, 3537, 1926, 14917, 741, 4770, 9010, 16551, 903, 17963, 990, ...

[ "nonn" ]

A227086

[ 7, 29, 99, 302, 842, 2177, 5281, 12128, 26548, 55684, 112389, 219051, 413531, 758154, 1353017, 2355283, 4006629, 6671623, 10890535, 17450956, 27483624, 42589055, 65002969, 97810106, 145217866, 212903302, 308449369, 441889009, 626378657 ]

[ "nonn" ]

A053342

[ 41, 1, 1, 2, 1, 1, 2, 1, 2, 1, 8, 1, 1, 27, 5, 6, 5, 27, 1, 1, 8, 1, 2, 1, 2, 1, 1, 2, 1, 1, 82, 1, 1, 2, 1, 1, 2, 1, 2, 1, 8, 1, 1, 27, 5, 6, 5, 27, 1, 1, 8, 1, 2, 1, 2, 1, 1, 2, 1, 1, 82, 1, ...

[ "nonn", "cofr" ]

A230663

[ 2, 67, 3, 349, 79, 439, 21559, 14713, 13, 8123233, 223, 3468214093, 1701300344203, 11613197109589, 19 ]

[ "nonn", "more" ]

A382610

[ 0, 6, 6, 30, 84, 330, 1224, 4914, 19866, 82110, 341880, 1433790, 6034320, 25461774, 107592030, 455078910, 1925933100, 8153659170, 34527059160, 146226569946, 619340796690, 2623347596766, 11112097049136, 47070075918390, 199388054716704, 844610917608150, 357780193827...

[ "nonn", "easy", "changed" ]

A302174

[ 1, 2, 27, 256, 472392, 262144, 13759414272, 4294967296, 4057816381784064 ]

[ "nonn", "more" ]

A103628

[ 0, 1, 2, 6, 10, 21, 33, 59, 89, 145, 212, 325, 463, 680, 948, 1348, 1845, 2558, 3446, 4681, 6219, 8306, 10901, 14352, 18632, 24230, 31151, 40077, 51074, 65088, 82290, 103986, 130517, 163679, 204078, 254174, 314975, 389839, 480369, 591133,...

[ "easy", "nonn" ]

A178369

[ 9, 89, 98, 99, 799, 889, 898, 899, 979, 988, 989, 997, 998, 999, 6999, 7899, 7989, 7998, 7999, 8799, 8889, 8898, 8899, 8979, 8988, 8989, 8997, 8998, 8999, 9699, 9789, 9798, 9799, 9879, 9888, 9889, 9897, 9898, 9899, 9969, 9978, 9979, ...

[ "base", "nonn" ]

A279093

[ 178, 300, 373, 676, 1111, 1702, 2473, 3448, 4651, 6106, 7837, 9868, 12223, 14926, 18001, 21472, 25363, 29698, 34501, 39796, 45607, 51958, 58873, 66376, 74491, 83242, 92653, 102748, 113551, 125086, 137377, 150448, 164323, 179026, 194581, 211012, ...

[ "nonn", "base" ]

A319705

[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 11, 13, 14, 15, 5, 16, 11, 17, 18, 19, 20, 21, 22, 23, 24, 25, 20, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 33, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 38, 48, 49...

[ "nonn" ]

A078002

[ 1, 1, 1, -1, -5, -11, -15, -9, 19, 77, 153, 191, 75, -347, -1151, -2105, -2365, -323, 5929, 16911, 28539, 28309, -5743, -96873, -244621, -380883, -323399, 223327, 1531819, 3487109, 4995745, 3440743, -5088477, -23609187, -49011383, -64236625, -3...

[ "sign" ]

A381978

[ 6, 4, 10, 6, 6, 6, 12, 8, 8, 12, 10, 10, 12, 12, 12, 12, 12, 14, 24, 16, 16, 18, 16, 18, 18, 20, 20, 18, 20, 20, 24, 24, 24, 24, 24, 26, 24, 28, 24, 30, 28, 30, 30, 28, 30, 30, 32, 34, 36, 30, 32, 36, 36, 38, ...

[ "nonn" ]

A389700

[ 31, 51, 135, 148, 976, 10048, 34335, 138496, 449295, 33673216, 537346048, 8591835136, 4439852974095, 35184493723648, 1956860570050575, 9007201200898048, 221753180448460800, 747406020889133800, 36893488271973155000, 9.444732967732155e+21 ]

[ "nonn" ]

A157424

[ 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 2, 1, 0, 1, 0, 0, 3, 0, 1, 0, 1, 0, 0, 5, 1, 0, 1, 0, 1, 0, 0, 7, 1, 1, 0, 1, 0, 3, 0, 0, 11, 1, 1, 1, 0, 2, 0, 5, 0, 0, 0, 17, 0, 1, 1, 1, 0, 3, 0, ...

[ "nonn", "tabl" ]

A068827

[ 2, 3, 5, 7, 89, 127, 919, 1237, 8923, 8929, 8969, 12347, 89123, 89137, 89189, 89237, 89269, 89293, 89393, 89459, 89491, 89567, 89591, 89597, 89689, 89797, 89891, 89897, 91237, 91249, 123457, 891239, 891349, 891379, 891389, 891391 ]

[ "nonn", "base" ]

A299950

[ 1, 96, 16128, 7622784, 2900355072, 1319081479488, 592274331915264, 278167185566287100, 131973896384326000000, 6.371232745068675e+22, 3.1055582715009234e+25, 1.5282363171869403e+28, 7.574187854327285e+30 ]

[ "nonn" ]

A345239

[ 61, 83, 113, 139, 257, 271, 353, 383, 409, 647, 751, 773, 787, 829, 953, 991, 1069, 1307, 1321, 1409, 1433, 1553, 1583, 1627, 1699, 1789, 1801, 1811, 1907, 1913, 1973, 2029, 2069, 2131, 2297, 2311, 2371, 2417, 2447, 2477, 2551, 2633, ...

[ "nonn" ]

A031776

[ 2402, 9606, 21612, 38420, 60030, 86442, 117656, 153672, 194490, 240110, 290532, 345756, 405782, 470610, 540240, 614672, 693906, 777942, 866780, 960420, 1058862, 1162106, 1270152, 1383000, 1500650, 1623102, 1750356, 1882412, 2019270, 2160930 ]

[ "nonn" ]

A185183

[ 1, 1, 2, 10, 72, 672, 7640, 102072, 1564864, 27064448, 521248320, 11064781760, 256702399360, 6462978471168, 175520877380992, 5115062135795584, 159227683153536000, 5273353734210310000, 185143079148664100000, 6.86906251311176e+21 ]

[ "nonn" ]

A199725

[ 1, 4, 9, 2, 4, 6, 3, 2, 3, 9, 8, 0, 6, 3, 7, 8, 6, 7, 2, 0, 7, 0, 4, 0, 6, 5, 8, 9, 5, 2, 8, 0, 4, 3, 7, 9, 9, 0, 6, 1, 7, 7, 3, 6, 3, 5, 7, 2, 8, 3, 4, 3, 9, 2, 8, 5, 2, 5, 8, 7, 8, 2, 8, 0...

[ "nonn", "cons" ]

A149812

[ 1, 2, 4, 10, 26, 71, 213, 656, 2043, 6510, 21185, 69751, 232653, 785663, 2669329, 9132465, 31519477, 109446096, 381688232, 1337901064, 4711210673, 16648931593, 59052004172, 210185465527, 750190870068, 2684593024346, 9633007467277, 34647424892614, 1248757174332...

[ "nonn", "walk" ]

A017223

[ 125, 2744, 12167, 32768, 68921, 125000, 205379, 314432, 456533, 636056, 857375, 1124864, 1442897, 1815848, 2248091, 2744000, 3307949, 3944312, 4657463, 5451776, 6331625, 7301384, 8365427 ]

[ "nonn", "easy" ]

A347108

[ 3, 24, 72, 177, 285, 621, 813, 1278, 1785, 2541, 2973, 4653, 5241, 6585, 8313, 10266, 11238, 14787, 15987, 19767, 22839, 25863, 27591, 35031, 37914, 42030, 46830, 53550, 56250, 68346, 71418, 79419, 86331, 93135, 100047, 117792, 122124, 130524...

[ "nonn" ]

A061201

[ 1, 4, 7, 13, 16, 25, 28, 38, 44, 53, 56, 74, 77, 86, 95, 110, 113, 131, 134, 152, 161, 170, 173, 203, 209, 218, 228, 246, 249, 276, 279, 300, 309, 318, 327, 363, 366, 375, 384, 414, 417, 444, 447, 465, 483, 492, 495, 540, ...

[ "easy", "nonn" ]

A173419

[ 0, 1, 2, 2, 3, 3, 4, 3, 3, 4, 4, 4, 5, 4, 4, 3, 4, 4, 5, 4, 5, 5, 5, 4, 4, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 4, 5, 5, 5, 5, 6, 5, 6, 6, 5, 6, 6, 5, 5, 5, 6, 6, 6, 5, 6, 5, 6, 6, 6, 5, 6, 5, 5, 4...

[ "nice", "nonn" ]

A255102

[ 66, 168, 441, 1137, 2907, 7498, 19338, 49698, 127871, 329325, 847491, 2180700, 5613144, 14447250, 37180603, 95692059, 246288681, 633868172, 1631378124, 4198705332, 10806224445, 27811942767, 71579710341, 184225016494 ]

[ "nonn" ]

A061404

[ 3840, 92160, 5160960, 495452160, 71345111040, 14269022208000, 3767021862912000, 1265719345938432000, 526539247910387700000, 2.653757809468354e+23, 1.5922546856810124e+26 ]

[ "nonn", "easy" ]

A311635

[ 1, 4, 8, 12, 18, 24, 30, 36, 42, 46, 50, 54, 58, 62, 66, 72, 78, 84, 90, 96, 100, 104, 108, 112, 116, 120, 126, 132, 138, 144, 150, 154, 158, 162, 166, 170, 174, 180, 186, 192, 198, 204, 208, 212, 216, 220, 224, 228, 234...

[ "nonn" ]

A158094

[ 1, 2, 4, 20, 92, 580, 4156, 34372, 314348, 3204116, 35703996, 433587396, 5687955724, 80265513140, 1211781628060, 19497537309028, 333041104402860, 6019819589363348, 114794574818830720, 2303337794614783200 ]

[ "nonn" ]

A309415

[ 1, 1, 1, 1, 2, 6, 6, 12, 60, 360, 1260, 10080, 15120, 25200, 1247400, 32432400, 12612600, 6810804000, 7264857600, 185253868800, 1005663859200, 1117404288000, 4839757322400, 93504111468768000, 37401644587507200, 160787493266400000, 13023786954578400000 ]

[ "nonn", "base" ]

A229309

[ 10, 26, 43, 55, 57, 58, 136, 155, 222, 253, 355, 381, 737, 876, 904, 1027, 1055, 1081, 1552, 1711, 1751, 1962, 2696, 2758, 3197, 3403, 3411, 3775, 3916, 4063, 4401, 5093, 5671, 6176, 6567, 7111, 8251, 8515, 8702, 9316, 9465, 10768, ...

[ "nonn" ]

A302494

[ 1, 2, 3, 5, 6, 10, 11, 13, 15, 17, 22, 26, 29, 30, 31, 33, 34, 39, 41, 43, 47, 51, 55, 58, 59, 62, 65, 66, 67, 73, 78, 79, 82, 83, 85, 86, 87, 93, 94, 101, 102, 109, 110, 113, 118, 123, 127, 129, 130, 134, 137, 139...

[ "nonn" ]

A287518

[ 2, 4, 9, 10, 14, 18, 20, 24, 25, 28, 32, 36, 38, 40, 45, 47, 51, 52, 56, 58, 63, 65, 69, 70, 73, 77, 81, 82, 86, 90, 92, 94, 99, 101, 105, 106, 110, 112, 117, 118, 122, 126, 128, 132, 133, 137, 139, 144, 146, 150, 15...

[ "nonn", "easy" ]

A050791

[ 12, 103, 150, 249, 495, 738, 1544, 1852, 1988, 2316, 4184, 5262, 5640, 8657, 9791, 9953, 11682, 14258, 21279, 21630, 31615, 36620, 36888, 38599, 38823, 40362, 41485, 47584, 57978, 59076, 63086, 73967, 79273, 83711, 83802, 86166, 90030 ]

[ "nonn", "nice" ]

A262695

[ 0, 4, 0, 3, 2, 2, 0, 1, 1, 24, 3, 23, 0, 1, 2, 22, 2, 21, 0, 1, 1, 20, 0, 19, 1, 1, 3, 18, 1, 17, 0, 16, 2, 1, 0, 15, 1, 1, 10, 14, 1, 2, 0, 1, 2, 13, 0, 12, 9, 1, 1, 11, 1, 10, 0, 1, 1, 9, 0, 8, ...

[ "nonn" ]

A041168

[ 9, 10, 29, 97, 126, 223, 1241, 1464, 12953, 14417, 85038, 99455, 184493, 652934, 1490361, 2143295, 40069671, 42212966, 124495603, 415699775, 540195378, 955895153, 5319671143, 6275566296, 55524201511 ]

[ "nonn", "cofr", "frac", "easy" ]

A301451

[ 1, 7, 10, 16, 19, 25, 28, 34, 37, 43, 46, 52, 55, 61, 64, 70, 73, 79, 82, 88, 91, 97, 100, 106, 109, 115, 118, 124, 127, 133, 136, 142, 145, 151, 154, 160, 163, 169, 172, 178, 181, 187, 190, 196, 199, 205, 208, 214, 217,...

[ "nonn", "easy" ]

A231294

[ 1, 5, 69, 1934, 103456, 10359556, 1965819189, 700770072586, 465403714589817 ]

[ "nonn" ]

A131229

[ 1, 7, 11, 17, 21, 27, 31, 37, 41, 47, 51, 57, 61, 67, 71, 77, 81, 87, 91, 97, 101, 107, 111, 117, 121, 127, 131, 137, 141, 147, 151, 157, 161, 167, 171, 177, 181, 187, 191, 197, 201, 207, 211, 217, 221, 227, 231, 237, 24...

[ "nonn", "easy" ]

A104429

[ 1, 1, 2, 5, 15, 55, 232, 1161, 6643, 44566, 327064, 2709050, 24312028, 240833770, 2546215687, 29251369570, 355838858402, 4658866773664, 64127566159756, 940320691236206 ]

[ "nonn", "nice", "more" ]

A155857

[ 1, 2, 6, 23, 107, 590, 3786, 27821, 230869, 2137978, 21873854, 245151555, 2987967551, 39358156310, 557259550034, 8440866957273, 136211005966889, 2333068710452146, 42276699542130170, 808068680469402100, 16248405328930780000, 342877404288485750000, 7.576652528705019e+21 ]

[ "nonn", "easy" ]

A090192

[ 1, 1, 0, -1, 0, 2, 0, -5, 0, 14, 0, -42, 0, 132, 0, -429, 0, 1430, 0, -4862, 0, 16796, 0, -58786, 0, 208012, 0, -742900, 0, 2674440, 0, -9694845, 0, 35357670, 0, -129644790, 0, 477638700, 0, -1767263190, 0, 6564120420, 0, -2446626...

[ "sign" ]

A020630

[ 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 53, 59, 61, 71, 73, 79, 97, 101, 107, 113, 127, 131, 163, 179, 199, 211, 223, 239, 257, 269, 307, 347, 359, 409, 541, 557, 601, 647, 719, 881, 971, 1151, 1187, 1481, 1619, 1907...

[ "nonn", "fini", "full" ]

A163686

[ 1, 5, 17, 39, 83, 175, 375, 807, 1732, 3690, 7805, 16441, 34605, 72893, 153653, 323917, 682654, 1438292, 3030059, 6383675, 13449863, 28338555, 59708355, 125801331, 265051912, 558439806, 1176585241, 2478972461, 5223002977, 11004454185 ]

[ "nonn" ]

A351040

[ 1, 1, 2, 1, 3, 2, 4, 1, 5, 3, 6, 2, 7, 4, 8, 1, 9, 5, 10, 3, 11, 6, 12, 2, 13, 7, 14, 4, 15, 8, 16, 1, 17, 9, 17, 5, 18, 10, 19, 3, 20, 11, 21, 6, 22, 12, 23, 2, 24, 13, 25, 7, 26, 14, 25, 4, 27, 15, ...

[ "nonn", "easy" ]