N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A140742	[ 73, 137, 283, 347, 557, 977, 1123, 1187, 1543, 1607, 1753, 2027, 2237, 2383, 2447, 2593, 2657, 2803, 3433, 3643, 3853, 3917, 4127, 4273, 4337, 4483, 4547, 4903, 4967, 5113, 5323, 5387, 5743, 5807, 5953, 6163, 6373, 6793, 6857, 7213, 748...	[ "nonn", "easy" ]
A117540	[ 13, 3, 2, 21, 1, 1, 8, 5 ]	[ "nonn", "dumb", "fini" ]
A073979	[ 0, 0, 9, 48, 180, 972, 7056, 48384, 297432, 1762560, 10349856, 60466176, 356638464, 2139830784, 12958657344, 78399995904, 472093588224, 2832129868032, 16960580969472, 101565116448768, 608764662139392, 3652526115938304, 21926115464435710, 131621703842267140 ]	[ "easy", "nonn" ]
A038411	[ 1, 4, 10, 21, 36, 56, 82, 113, 145, 180, 224, 278, 332, 381, 441, 509, 583, 656, 731, 821, 909, 995, 1095, 1203, 1309, 1415, 1527, 1649, 1776, 1909, 2041, 2172, 2319, 2472, 2618, 2773, 2930, 3103, 3281, 3446, 3619, 3800, 4000, 419...	[ "nonn" ]
A145389	[ 0, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9...	[ "nonn", "base", "easy" ]
A142656	[ 37, 149, 317, 373, 541, 653, 709, 821, 877, 1213, 1381, 1493, 1549, 1997, 2053, 2221, 2333, 2389, 2557, 2837, 3061, 3229, 3677, 3733, 4013, 4349, 4517, 4909, 5021, 5077, 5189, 5413, 5581, 5693, 5749, 5861, 6029, 6197, 6421, 6701, 6869, ...	[ "nonn", "easy" ]
A249538	[ 5, 3, 1, 7, 3, 6, 1, 5, 5, 2, 7, 1, 6, 5, 4, 8, 0, 8, 1, 8, 9, 4, 5, 0, 2, 4, 5, 0, 0, 2, 3, 4, 3, 5, 5, 4, 8, 3, 9, 2, 6, 4, 8, 3, 6, 8, 3, 6, 7, 1, 6, 1, 3, 8, 4, 6, 4, 1, 4, 2, 3, 3, 6, 9...	[ "nonn", "cons", "easy" ]
A283385	[ 0, 1734, 257416, 20788531, 1644385909, 120672330232, 8473366210380, 577497122717510, 38429377558548080, 2510034447031637000, 161474518006208920000, 1.0257528561081996e+22, 6.446769482219053e+23 ]	[ "nonn" ]
A232063	[ 16, 146, 1194, 9310, 75462, 612364, 4990482, 40661766, 331554282, 2703411654, 22045643128, 179775318402, 1466041167494, 11955330672874, 97494132143426, 795051433770004, 6483540298615466, 52872418589641130, 431167661161163000 ]	[ "nonn" ]
A033935	[ 1, 1, 6, 93, 2716, 127905, 8848236, 844691407, 106391894904, 17091486402849, 3410496772665940, 827540233598615700, 239946160014513200000, 8.19324062677218e+22, 3.254165601717309e+25, 1.487468671791686e+28, 7.753005946480818e+30 ]	[ "nonn", "easy" ]
A116232	[ 63, 7.41614226241961e+25, 7.614162064399809e+25, 8.470290910648176e+25, 8.668310712628374e+25, 4.050207542676714e+33 ]	[ "nonn", "base" ]
A385024	[ 1, 1, 2, 5, 14, 47, 172, 691, 2881, 12449, 54782, 244992, 1107240, 5050360, 23202236, 107269382, 498622480, 2328953312, 10924738869 ]	[ "nonn", "hard", "more" ]
A276565	[ 56, 552, 870, 1056, 1190, 1640, 1892, 2652, 4032, 5256, 5402, 6806, 8372, 9120, 9506, 9702, 10920, 11772, 12656, 12882, 15006, 15252, 15500, 16256, 16770, 17556, 18632, 23256, 24492, 27722, 29070, 30800, 33306, 33672, 34410, 36290, 40200, 406...	[ "nonn" ]
A041219	[ 1, 1, 21, 22, 461, 483, 10121, 10604, 222201, 232805, 4878301, 5111106, 107100421, 112211527, 2351330961, 2463542488, 51622180721, 54085723209, 1133336644901, 1187422368110, 24881784007101, 26069206375211, 546265911511321, 572335117886532, 11992968269241960 ]	[ "nonn", "frac", "easy", "less" ]
A280466	[ 1, 3, 9, 27, 65, 179, 473, 1163, 2465, 6371, 15785, 36539 ]	[ "nonn", "more" ]
A355024	[ 1, 3, 10, 24, 55, 109, 206, 360, 606, 970, 1508, 2264, 3322, 4750, 6668, 9176, 12439, 16597, 21870, 28448, 36617, 46627, 58842, 73584, 91308, 112420, 137480, 166992, 201636, 242028, 288984, 343248, 405789 ]	[ "nonn", "easy" ]
A130709	[ 1, 1, 2, 4, 7, 13, 22, 41, 75, 138, 255, 482, 911, 1735, 3316, 6370, 12306, 23907, 46666, 91500, 180119, 355820, 705061, 1400722, 2788718, 5561720, 11107305, 22205839, 44429088, 88942741, 178120533, 356787834, 714732794, 1431763102, 2867860060 ]	[ "easy", "nonn" ]
A022619	[ 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 7, 7, 7, 0, 1, 0, 0, 1, 0, 35, 105, 273, 448, 715, 750, 715, 448, 273, 105, 35, 0, 1, 0, 0, 1, 0, 155, 1085, 6293, 27776, 105183, 327050, 876525, 2011776, 4032015, 7048811, 10855425, 1472...	[ "nonn", "tabf" ]
A016385	[ 1, -1, 1, 0, 0, 1, -1, 1, 0, 0, 0, 1, -1, 1, 0, -1, 2, -2, 1, 0, -1, 1, -1, 0, 0, 0, -1, 1, -1, 0, 1, -2, 2, -2, 1, 0, -1, 1, -1, 1, -1, 1, -1, 1, -1, 0, 1, -2, 2, -2, 1, 0, -1, 1, -1, 0, 0, 0, -1, ...	[ "sign", "fini", "full" ]
A308657	[ 3, 10, 178 ]	[ "nonn", "bref", "hard", "base" ]
A236501	[ 256, 2632, 27458, 284408, 2954930, 30642966, 318132117, 3300684904, 34257479784, 355481488428, 3689189768448, 38283796526416, 397297768359304, 4122943466702820, 42786260152594110, 444015373043625500 ]	[ "nonn" ]
A075509	[ 1, 1, 11, 131, 1761, 27601, 506651, 10674211, 251686881, 6524202561, 183991725451, 5605930566051, 183428104316161, 6409252239788881, 237948848526923620, 9346097294356705000, 386966245108218200000, 1.6836505067572364e+22, 7.676453057702832e+23 ]	[ "nonn", "easy", "eigen" ]
A012412	[ 1, 0, -1, -6, -15, 20, 255, 70, -3423, 46728, 501375, -3625358, -60112239, 420430556, 9211149311, -79037179650, -2033765765567, 18361020368016, 572833991092479, -5418169914165654, -201869115241158600 ]	[ "sign" ]
A110230	[ 32, 72, 120, 162, 168, 180, 200, 243, 264, 270, 280, 312, 378, 392, 396, 408, 440, 450, 456, 520, 552, 588, 594, 612, 616, 630, 680, 696, 700, 702, 728, 744, 750, 760, 780, 828, 882, 888, 918, 920, 945, 952, 968, 984, 990, 102...	[ "easy", "nonn" ]
A009371	[ 0, 1, 1, 4, 0, 45, -155, 1748, -13496, 151169, -1682191, 22018412, -307464872, 4746159613, -78744546907, 1410956472396, -27026759291728, 552443153007777, -11988735452427904, 275451486233018100, -6677966707663119000 ]	[ "sign", "easy" ]
A082090	[ 2, 3, 4, 4, 5, 5, 5, 5, 5, 5, 6, 5, 6, 6, 6, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 7, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 6, 7, 6, 6, 6...	[ "nonn" ]
A074803	[ 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4...	[ "nonn" ]
A152607	[ 1, 3, 7, 9, 71, 73, 79, 711, 713, 717, 971, 973, 1111, 1113, 1117, 1119, 7111, 7113, 7117, 9711, 9713, 11111, 11113, 11117, 11119, 71111, 71113, 71117, 97111, 97113, 111111, 111113, 111117, 111119, 711111, 711113, 711117, 971111 ]	[ "nonn", "base" ]
A256504	[ 0, 1, 1, 3, 1, 5, 6, 5, 1, 6, 7, 12, 10, 12, 11, 12, 1, 8, 16, 14, 17, 18, 18, 23, 13, 21, 18, 22, 23, 24, 19, 14, 1, 22, 20, 23, 24, 31, 27, 25, 26, 36, 28, 37, 29, 30, 42, 37, 22, 32, 37, 38, 35, 41, 36, ...	[ "nonn", "easy" ]
A066418	[ 2, 3, 4, 5, 6, 7, 8, 12, 15, 27, 30, 40, 44, 57, 117, 128, 171, 236, 399, 408, 510, 1623, 3597, 3915, 4616, 4684, 7335, 10197, 10768, 14144, 32768, 39387, 76035, 77097, 106605, 162450, 196080, 219966, 391696 ]	[ "nonn", "more" ]
A250438	[ 1296, 14400, 160000, 1000000, 6250000, 27562500, 121550625, 423536400, 1475789056, 4337012736, 12745506816, 32920473600, 85030560000, 198470250000, 463250390625, 996503062500, 2143588810000, 4311270849600, 8670998958336 ]	[ "nonn" ]
A183704	[ 31800, 4760784, 710460576, 106093597920, 15840740585184, 2365244332190880, 353161421431958900, 52731638795200910000, 7.873523002759948e+21, 1.1756200257088064e+24, 1.7553545118897582e+26 ]	[ "nonn" ]
A066980	[ 5, 7, 13, 15, 18, 23, 25, 28, 32, 33, 35, 38, 43, 45, 47, 50, 53, 55, 60, 63, 67, 68, 73, 77, 78, 83, 85, 88, 95, 98, 105, 108, 110, 113, 115, 117, 123, 127, 128, 130, 133, 137, 138, 140, 143, 145, 150, 153, 155, 158, ...	[ "easy", "nonn" ]
A303537	[ 1, 2, 2, 12, 22, 124, 276, 1496, 3686, 19436, 51068, 263720, 724860, 3681880, 10466920, 52450992, 153093254, 758495564, 2261603564, 11096526344, 33676743956, 163842737928, 504738342808, 2437418983888, 7605947276508, 36487283224952, 115140704639576 ]	[ "nonn" ]
A166817	[ 0, 0, 90, 1552, 9902, 41151, 133175, 364772, 885824, 1962990, 4046548, 7865396, 14558830, 25855557, 44312489, 73628216, 119048688, 187885564, 290170926 ]	[ "nonn" ]
A115907	[ 1, 2, 9, 13, 21, 80, 112, 129, 147, 225, 308, 349, 1063, 1282, 1300, 1635, 1880, 2686, 2956, 3517, 3759, 3907, 4058, 5025, 5196, 6742, 7606, 7708, 9244, 10154, 10596, 11259, 11719, 12687, 13167, 13599, 14081, 14624, 15937, 16437, 16766,...	[ "nonn" ]
A063057	[ 7059, 16566, 83127, 155265, 717816, 1336533, 4692864, 9375828, 17661567, 94178238, 177465387, 961030158, 1812060327, 9042662508, 17095324917, 89037683988, 177976357086, 858730036857, 1617360074715, 6792060711876 ]	[ "base", "nonn" ]
A156755	[ 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1...	[ "nonn", "easy", "changed" ]
A042137	[ 1, 2, 3, 17, 37, 91, 128, 219, 566, 1351, 7321, 8672, 24665, 1192592, 2409849, 3602441, 20422054, 44446549, 109315152, 153761701, 263076853, 679915407, 1622907667, 8794453742, 10417361409, 29629176560, 1432617836289, 2894864849138, 4327482685427, 24532278276...	[ "nonn", "frac", "easy" ]
A014510	[ 1, 0, 1, 3, 11, 52, 287, 1871, 14034, 119292, 1133278, 11899423, 136843365, 1710542068, 23092317922, 334838609873, 5189998453040, 85634974475162, 1498612053315336, 27724322986333720, 540624298233507500 ]	[ "nonn" ]
A023378	[ 4, 10, 22, 112, 1300, 110110, 122320132, 13102213110010, 2.332222120300201e+21, 1.3321232011112314e+35, 1.2122133133313032e+58 ]	[ "nonn", "base" ]
A014730	[ 1, 9, 49, 121, 841, 2209, 15129, 39601, 271441, 710649, 4870849, 12752041, 87403801, 228826129, 1568397609, 4106118241, 28143753121, 73681302249, 505019158609, 1322157322201, 9062201101801, 23725150497409, 162614600673849, 425730551631121, 2918000611027441 ]	[ "nonn", "easy" ]
A127881	[ 241231, 7057861, 21166951, 52066891, 216295321, 654480151, 1619368381, 2411089396, 3486017011, 6776093041, 12182173471, 20592045301, 26260194241, 33113005531, 51096161161, 76160729191, 110218336621, 131302849486 ]	[ "nonn" ]
A246892	[ 30, 231, 58, 900, 673, 112, 2701, 3364, 1961, 216, 6210, 12481, 12544, 5711, 416, 12931, 33294, 57585, 46656, 16621, 802, 23400, 79345, 177648, 264981, 173056, 48393, 1546, 40281, 159688, 484297, 942216, 1216081, 643204, 140893, 2980, 63750 ]	[ "nonn", "tabl" ]
A101456	[ 5, 7, 7, 2, 5, 5, 3, 2, 5, 2, 2, 2, 3, 2, 5, 3, 3, 5, 3, 2, 3, 5, 5, 7, 7, 2, 3, 7, 7, 2, 7, 7, 7, 7, 3, 7, 3, 2, 7, 7, 5, 3, 7, 2, 7, 2, 5, 5, 2, 3, 2, 2, 7, 3, 7, 2, 3, 5, 3, 2, 5, 3, 5, 3...	[ "base", "easy", "nonn" ]
A271945	[ 0, 0, 4, 4, 40, 72, 428, 1036, 4816, 13712, 56020, 174612, 665080, 2180568, 7991676, 26951708, 96696224, 331269920, 1174584228, 4059317284, 14299305416, 49658576744, 174293008204, 606920893484, 2125899390576, 7413894423728, 25940068045428, 90539218468404 ]	[ "nonn", "easy" ]
A227331	[ 15, 104, 708, 4917, 33297, 204206, 1108382, 5361624, 23477312, 94474684, 353596604, 1242207201, 4125406694, 13026205724, 39292608858, 113681479364, 316556625809, 850933663116, 2213918991347, 5587988935294, 13711077238915 ]	[ "nonn" ]
A045971	[ 8, 27, 125, 81, 343, 3375, 1331, 243, 625, 9261, 2197, 10125, 4913, 35937, 42875, 729, 6859, 16875, 12167, 27783, 166375, 59319, 24389, 30375, 2401, 132651, 3125, 107811, 29791, 1157625, 50653, 2187, 274625, 185193, 456533, 50625, 68921, 3285...	[ "easy", "nonn" ]
A064533	[ 7, 6, 4, 2, 2, 3, 6, 5, 3, 5, 8, 9, 2, 2, 0, 6, 6, 2, 9, 9, 0, 6, 9, 8, 7, 3, 1, 2, 5, 0, 0, 9, 2, 3, 2, 8, 1, 1, 6, 7, 9, 0, 5, 4, 1, 3, 9, 3, 4, 0, 9, 5, 1, 4, 7, 2, 1, 6, 8, 6, 6, 7, 3, 7...	[ "cons", "nonn" ]
A276175	[ 1, 1, 1, 1, 8, 36, 666, 222111, 685187756, 2819713283228248, 6.443359130932233e+26, 5.604757351123069e+45, 1.4861563788248215e+79 ]	[ "nonn" ]
A167575	[ 1473, 8169, 26529, 66345, 140865, 266793, 464289, 756969, 1171905, 1739625, 2494113, 3472809, 4716609, 6269865, 8180385, 10499433, 13281729, 16585449, 20472225, 25007145, 30258753, 36299049, 43203489, 51050985, 59923905 ]	[ "easy", "nonn" ]
A365996	[ 3, 18, 182, 2211, 29787, 427249, 6388662, 98408718, 1550202417 ]	[ "nonn", "hard", "more" ]
A012440	[ 0, 2, -4, 398, -10344, 2050362, -188329260, 60987377670, -12776749381200, 6138167322301170, -2341662552659308500, 1.574696831249089e+21, -9.544428744642285e+23, 8.625982184254682e+26 ]	[ "sign" ]
A033248	[ 83, 521, 691, 787, 1163, 1193, 1291, 1409, 1627, 1913, 1931, 2099, 2273, 2347, 2579, 2689, 2713, 2833, 2897, 2939, 2953, 3067, 3209, 3323, 3371, 3691, 3851, 3889, 4451, 4513, 4817, 5099, 5147, 5153 ]	[ "nonn", "easy" ]
A003595	[ 1, 5, 7, 25, 35, 49, 125, 175, 245, 343, 625, 875, 1225, 1715, 2401, 3125, 4375, 6125, 8575, 12005, 15625, 16807, 21875, 30625, 42875, 60025, 78125, 84035, 109375, 117649, 153125, 214375, 300125, 390625, 420175, 546875, 588245, 765625, 8235...	[ "nonn" ]
A088986	[ 54, 91, 92, 115, 141, 142, 143, 144, 158, 205, 212, 213, 214, 215, 295, 301, 323, 324, 325, 391, 535, 685, 721, 799, 1135, 1345, 1465, 1535, 1711, 1941, 1981, 2101, 2215, 2302, 2303, 2304, 2425, 2641, 3865, 4411, 5461, 6505, 6625, ...	[ "nonn" ]
A299290	[ 1, 9, 37, 97, 203, 367, 603, 923, 1341, 1869, 2521, 3309, 4247, 5347, 6623, 8087, 9753, 11633, 13741, 16089, 18691, 21559, 24707, 28147, 31893, 35957, 40353, 45093, 50191, 55659, 61511, 67759, 74417, 81497, 89013, 96977, 105403, 114303, 123...	[ "nonn" ]
A164437	[ 1, 2, 4, 8, 13, 22, 37, 62, 104, 174, 292, 490, 821, 1376, 2308, 3870, 6487, 10876, 18237, 30576, 51261, 85946, 144102, 241600, 405064, 679140, 1138659, 1909078, 3200774, 5366466, 8997477, 15085240, 25292069, 42404978, 71096617, 119201278, 1998...	[ "nonn", "easy" ]
A141907	[ 1, 11, 141, 1111, 16661, 172271, 1016101, 17399371, 128404821, 1302442031, 16784848761, 131546645131, 1860584850681, 19465322356491, 129218121812921, 1955997557995591, 14000280008200040, 154002080080200450 ]	[ "nonn", "base" ]
A208982	[ 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 16, 17, 18, 19, 21, 22, 23, 27, 28, 29, 30, 36, 39, 40, 41, 42, 43, 45, 46, 52, 57, 58, 60, 63, 65, 66, 67, 69, 70, 71, 72, 75, 77, 78, 81, 82, 88, 95, 96, 99, 100, 101, 102, 10...	[ "nonn", "base" ]
A064654	[ 1, 3, 2, 3, 2, 2, 2, 4, 3, 1, 2, 2, 2, 3, 2, 2, 3, 3, 2, 5, 2, 1, 2, 2, 2, 2, 2, 4, 3, 4, 3, 1, 1, 2, 2, 1, 2, 3, 2, 2, 1, 2, 2, 2, 2, 5, 3, 1, 2, 2, 2, 1, 2, 4, 2, 2, 3, 3, 2, 2, 3, 1, 2, 4...	[ "nonn", "easy" ]
A140873	[ -60, -240, -280, 840, -1440, -1200, 3360, 5040, -6720, -4704, -15120, 26880, 26880, -26880, -17024, -60480, -110880, 161280, 129024, -96768, -57600, 332640, -604800, -705600, 806400, 564480, -322560, -184320, 1330560, 2882880, -4435200, -3991680, 35481...	[ "tabl", "sign" ]
A202377	[ 11362, 68965, 327679, 1285065, 4830102, 16261405, 51833855, 156557263, 450660848, 1250551900, 3351714309, 8722793052, 22118866900, 54801500414, 132976157412, 316751623141, 741810250017, 1710936850978, 3891524278627 ]	[ "nonn" ]
A240220	[ 0, 0, 0, 0, 1, 0, 2, 3, 4, 4, 11, 7, 19, 23, 22, 28, 53, 49, 88, 86, 92, 124, 203, 189, 250, 341, 386, 390, 594, 533, 815, 972, 1130, 1527, 1663, 1380, 2022, 2738, 3246, 3295, 4601, 4628, 6407, 6935, 6306, 8459, 11486, 114...	[ "nonn", "easy" ]
A222738	[ 1, 0, 1, 1, 2, 2, 4, 4, 7, 8, 14, 16, 23, 28, 40, 49, 67, 82, 110, 135, 180, 220, 286, 349, 448, 548, 694, 846, 1061, 1290, 1608, 1948, 2406, 2909, 3566, 4300, 5242, 6298, 7637, 9149, 11044, 13189, 15847, 18872, 22582, 26817, ...	[ "nonn" ]
A057411	[ 2, 54, 737, 7330, 60362, 438284, 2908069, 18032906, 106088843, 598428100, 3261717223, 17278076588, 89351738840, 452686823796, 2253216812878, 11043624323310, 53399946187312, 255135202590382, 1206067676613670 ]	[ "nonn" ]
A255539	[ 1, 1, 1, 3, 4, 10, 19, 51, 112, 300, 746, 2042, 5450, 15197, 42192, 119561, 339594 ]	[ "nonn", "more", "hard" ]
A144016	[ 1, 2, 1, 2, 2, 3, 1, 2, 2, 2, 3, 4, 3, 3, 1, 2, 2, 2, 4, 2, 2, 3, 3, 4, 4, 3, 3, 4, 3, 3, 1, 2, 2, 2, 4, 2, 2, 4, 4, 2, 2, 2, 3, 6, 3, 3, 3, 4, 4, 4, 4, 6, 3, 3, 3, 4, 4, 3, 3, 4, 3, 3, 1, 2...	[ "base", "nonn" ]
A188536	[ 797, 1077, 1651, 1691, 1895, 2059, 2817, 3263, 4193, 4615, 4803, 4987, 5453, 5501, 5745, 5993, 6427, 6761, 7149, 7547, 7797, 7943, 8489, 8705, 9439, 9747, 9899, 10201, 10347, 10661, 11059, 12367, 12591, 12815, 13095, 13861, 14359, 14693 ]	[ "nonn" ]
A129966	[ 0, 1, 3, 15, 21, 28, 36, 45, 55, 91, 105, 120, 136, 153, 171, 231, 253, 276, 300, 325, 351, 435, 465, 496, 528, 561, 595, 703, 741, 780, 820, 861, 903, 1035, 1081, 1128, 1176, 1225, 1275, 1431, 1485, 1540, 1596, 1653, 1711, 18...	[ "nonn", "easy" ]
A260524	[ 468950021, 493108481, 659846021, 5936122901, 8144063621, 11408333333, 12601267541, 14252656133, 18074903681, 27223783841, 30633711701, 31093792133, 31797754721, 61426533761, 65085388961, 86610942881, 91945013333, 92380393121, 102538073177 ]	[ "nonn" ]
A221757	[ 0, 4, 0, 43, 44, 736, 1680, 14548, 47314, 307629, 1201506, 6768794, 29159864, 152481584, 692301668, 3481342319, 16253985408, 80073291120, 379418253880, 1849109113064, 8830193356854, 42791854403241, 205182113819686 ]	[ "nonn" ]
A146517	[ 0, 64, 23924, 7262690, 3369041920, 1194672642926 ]	[ "nonn" ]
A041820	[ 20, 21, 83, 436, 519, 1474, 10837, 12311, 244746, 257057, 2044145, 4345347, 6389492, 36292807, 115267913, 151560720, 6177696713, 6329257433, 25165469012, 132156602493, 157322071505, 446800745503 ]	[ "nonn", "cofr", "frac", "easy", "less" ]
A175007	[ 1, 2, 3, 5, 6, 9, 11, 12, 14, 17, 18, 20, 22, 25, 26, 29, 30, 33, 34, 36, 38, 40, 42, 45, 47, 48, 50, 52, 54, 57, 58, 60, 62, 64, 66, 69, 70, 73, 74, 76, 78, 80, 82, 84, 86, 89, 91, 93, 95, 96, 98, 100, 102, 10...	[ "nonn" ]
A092829	[ 1, 3, 2, 4, 5, 6, 7, 10, 9, 11, 12, 8, 14, 15, 17, 16, 22, 13, 20, 19, 24, 23, 26, 18, 35, 29, 28, 25, 60, 21, 33, 32, 30, 37, 43, 27, 47, 38, 39, 31, 49, 34, 41, 46, 45, 44, 64, 40, 55, 36, 68, 50, 58, 48, 5...	[ "nonn" ]
A288413	[ 1039, 1129, 13749311599, 6332659870762851000, 1.4083168975803547e+135 ]	[ "nonn" ]
A132808	[ 1, 2, 1, 5, 3, 1, 14, 6, 6, 1, 42, 10, 20, 10, 1, 132, 15, 50, 50, 15, 1, 429, 21, 105, 175, 105, 21, 1, 1430, 28, 196, 490, 490, 196, 28, 1, 4862, 36, 336, 1176, 1764, 1176, 336, 36, 1, 16796, 45, 540, 2520, 5292, 5...	[ "nonn", "tabl" ]
A112021	[ 0, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 9, 10, 12, 14, 17, 19, 23, 26, 30, 35, 40, 46, 52, 60, 67, 77, 87, 98, 111, 124, 140, 157, 175, 197, 219, 244, 272, 302, 336, 372, 412, 456, 503, 556, 613, 675, 742, 816, 896, 98...	[ "nonn" ]
A070419	[ 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, ...	[ "nonn", "easy" ]
A269278	[ 0, 1620, 46872, 1104264, 23549400, 474819408, 9230973192, 174918307032, 3252108138552, 59583135523968, 1078987217468328, 19354648265646120, 344454190256524800, 6089633274402902000, 107049250394211730000 ]	[ "nonn" ]
A253269	[ 89391959, 89591959, 519512471, 519512473, 531324041, 561324041, 699023791, 699023891, 874481011, 874487011, 1862537503, 2232483271, 2232483871, 2608559351, 3127181789, 3157181789, 3928401949, 3928401989, 4070171669, 4070171969, 5225628323, 5309756339, 5525628323 ]	[ "nonn", "base" ]
A081971	[ 1, 5, 37, 1207, 7793, 532541, 35036093, 419218787, 98431469723, 14642854403167, 6408932966879, 4075936031956831, 504163702484694140, 78452289445098140000, 9.442422052170405e+21, 7.11841627568479e+23 ]	[ "nonn", "frac", "changed" ]
A288744	[ 1, 1, 9, 29, 112, 405, 1514, 5565, 20249, 73416, 265616, 957677, 3441282, 12329838, 44062706, 157105923, 559009643, 1985301783, 7038496811, 24913917722, 88058727525, 310832221932, 1095854282575, 3859201682187, 13576884290502, 47719628447310, 167579774234059 ]	[ "nonn" ]
A124263	[ 3, 29, 283, 2819, 28183, 281807, 2818043, 28180393, 281803927, 2818039241, 28180392407, 281803924067, 2818039240619, 28180392406171, 281803924061641, 2818039240616359, 28180392406163580, 281803924061635780, 2818039240616358000, 28180392406163580000, 281803924061635770000 ]	[ "nonn" ]
A179618	[ 5, 11, 11, 21, 35, 21, 43, 93, 93, 43, 85, 269, 314, 269, 85, 171, 747, 1213, 1213, 747, 171, 341, 2115, 4375, 6427, 4375, 2115, 341, 683, 5933, 16334, 31387, 31387, 16334, 5933, 683, 1365, 16717, 59925, 159651, 202841, 159651, 5992...	[ "nonn", "tabl" ]
A189704	[ 2, 3, 4, 6, 8, 11, 12, 13, 16, 17, 18, 21, 22, 24, 25, 26, 28, 30, 33, 34, 36, 37, 38, 40, 42, 45, 46, 48, 49, 50, 52, 55, 56, 57, 59, 61, 64, 65, 66, 69, 70, 71, 74, 75, 77, 78, 79, 81, 84, 85, 86, 88, 90, 93,...	[ "nonn" ]
A223618	[ 22, 484, 6504, 57238, 367216, 1856100, 7795951, 28248007, 90732638, 263650284, 703980614, 1748547620, 4079672416, 9012596316, 18975151965, 38281575869, 74344179766, 139521245076, 253869738212, 449160402594, 774624001120 ]	[ "nonn" ]
A305150	[ 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 1, 2, 1, 5, 1, 1, 2, 2, 2, 2, 1, 2, 2, 3, 1, 5, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 2, 3, 2, 2, 1, 6, 1, 2, 2, 1...	[ "nonn" ]
A379810	[ 15, 46, 104, 305, 261, 1691, 380, 406, 508, 1175, 3281, 7729, 2827, 10877, 6289, 13289, 1737, 4829, 2945, 3205, 9673, 1940, 21253, 1970, 31921, 21127, 34861, 5457, 22219, 120983, 99893, 110843, 148613, 105029, 164107, 12905, 89279, 15245, 1...	[ "nonn" ]
A087631	[ 1, 6, 35, 268, 2092, 17263, 146565, 1274244, 11272025, 101053126, 915743823, 8372470456, 77114448042 ]	[ "nonn", "base", "hard", "more" ]
A173784	[ 1, 2, 4, 6, 9, 12, 18, 23, 28, 34, 42, 49, 61, 68, 80, 91, 103, 111, 128, 138, 156 ]	[ "nonn" ]
A320064	[ 0, 1, 16, 312, 7552, 220800, 7597824, 301321216, 13545271296, 681015214080, 37879390720000, 2309968030334976, 153275504883695600, 10995166075754120000, 847974316241667800000, 6.997145995947792e+22, 6.151490510604351e+24, 5.740354305190087e+26, 5.666992138783981e+28 ]	[ "nonn" ]
A338681	[ 1, 1, 1, 4, 1, 61, 1, 1681, 5041, 15121, 1, 13638241, 1, 8648641, 1816214401, 181880899201, 1, 45951781075201, 1, 3379365788198401, 1689515283456001, 14079294028801, 1, 4.4548571035446684e+21, 538583682060103700000, 32382376266240000 ]	[ "nonn" ]
A030887	[ 2, 4, 12, 51, 257, 1546, 10827, 86621, 779597, 7795977, 85755752, 1029069031, 13377897415, 187290563819, 2809358457289, 44949735316634, 764145500382787, 13754619006890172, 261337761130913280, 5226755222618266000 ]	[ "nonn" ]
A051083	[ 2, 3, 11, 19, 59, 67, 73, 83, 89, 107, 131, 139, 163, 179, 227, 233, 251, 257, 283, 307, 331, 347, 353, 419, 443, 467, 499, 523, 563, 571, 577, 587, 593, 601, 619, 643, 683, 691, 739, 787, 811, 859, 881, 907, 937, 947, 971, ...	[ "nonn", "easy" ]
A318223	[ 1, 1, -3, 13, -71, 441, -2699, 9157, 206193, -8443151, 236126701, -6169406979, 161388751657, -4327824442967, 120012465557349, -3450029411174219, 102741264191105760, -3160671409312412700, 99982488984008590000, -3.2300949128662163e+21, 1.0548107353484248e+23, -3.4232605416959...	[ "sign" ]
A206972	[ 3353, 11242609, 20232472915, 36046917008352, 63628877431006150 ]	[ "nonn" ]
A216707	[ 5, 3, 5, 4, 9, 1, 6, 5, 5, 5, 2, 4, 7, 6, 4, 7, 3, 6, 5, 0, 3, 0, 4, 9, 3, 2, 9, 5, 8, 9, 0, 4, 7, 1, 8, 1, 4, 7, 7, 8, 0, 5, 7, 9, 7, 6, 0, 3, 2, 9, 4, 9, 1, 5, 5, 0, 7, 2, 0, 5, 2, 5, 5, 0...	[ "nonn", "cons" ]
A010093	[ 1, 0, 82677, 40346376, 10472045985, 1633772700952, 167982323077989, 12100259735369136, 638087062835640800, 25460924781434106000, 788752649609653500000, 1.9363706818511193e+22 ]	[ "nonn", "fini", "full" ]

A140742

[ 73, 137, 283, 347, 557, 977, 1123, 1187, 1543, 1607, 1753, 2027, 2237, 2383, 2447, 2593, 2657, 2803, 3433, 3643, 3853, 3917, 4127, 4273, 4337, 4483, 4547, 4903, 4967, 5113, 5323, 5387, 5743, 5807, 5953, 6163, 6373, 6793, 6857, 7213, 748...

[ "nonn", "easy" ]

A117540

[ 13, 3, 2, 21, 1, 1, 8, 5 ]

[ "nonn", "dumb", "fini" ]

A073979

[ 0, 0, 9, 48, 180, 972, 7056, 48384, 297432, 1762560, 10349856, 60466176, 356638464, 2139830784, 12958657344, 78399995904, 472093588224, 2832129868032, 16960580969472, 101565116448768, 608764662139392, 3652526115938304, 21926115464435710, 131621703842267140 ]

[ "easy", "nonn" ]

A038411

[ 1, 4, 10, 21, 36, 56, 82, 113, 145, 180, 224, 278, 332, 381, 441, 509, 583, 656, 731, 821, 909, 995, 1095, 1203, 1309, 1415, 1527, 1649, 1776, 1909, 2041, 2172, 2319, 2472, 2618, 2773, 2930, 3103, 3281, 3446, 3619, 3800, 4000, 419...

[ "nonn" ]

A145389

[ 0, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9, 1, 3, 6, 1, 6, 3, 1, 9, 9...

[ "nonn", "base", "easy" ]

A142656

[ 37, 149, 317, 373, 541, 653, 709, 821, 877, 1213, 1381, 1493, 1549, 1997, 2053, 2221, 2333, 2389, 2557, 2837, 3061, 3229, 3677, 3733, 4013, 4349, 4517, 4909, 5021, 5077, 5189, 5413, 5581, 5693, 5749, 5861, 6029, 6197, 6421, 6701, 6869, ...

[ "nonn", "easy" ]

A249538

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

[ "nonn", "cons", "easy" ]

A283385

[ 0, 1734, 257416, 20788531, 1644385909, 120672330232, 8473366210380, 577497122717510, 38429377558548080, 2510034447031637000, 161474518006208920000, 1.0257528561081996e+22, 6.446769482219053e+23 ]

[ "nonn" ]

A232063

[ 16, 146, 1194, 9310, 75462, 612364, 4990482, 40661766, 331554282, 2703411654, 22045643128, 179775318402, 1466041167494, 11955330672874, 97494132143426, 795051433770004, 6483540298615466, 52872418589641130, 431167661161163000 ]

[ "nonn" ]

A033935

[ 1, 1, 6, 93, 2716, 127905, 8848236, 844691407, 106391894904, 17091486402849, 3410496772665940, 827540233598615700, 239946160014513200000, 8.19324062677218e+22, 3.254165601717309e+25, 1.487468671791686e+28, 7.753005946480818e+30 ]

[ "nonn", "easy" ]

A116232

[ 63, 7.41614226241961e+25, 7.614162064399809e+25, 8.470290910648176e+25, 8.668310712628374e+25, 4.050207542676714e+33 ]

[ "nonn", "base" ]

A385024

[ 1, 1, 2, 5, 14, 47, 172, 691, 2881, 12449, 54782, 244992, 1107240, 5050360, 23202236, 107269382, 498622480, 2328953312, 10924738869 ]

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

A276565

[ 56, 552, 870, 1056, 1190, 1640, 1892, 2652, 4032, 5256, 5402, 6806, 8372, 9120, 9506, 9702, 10920, 11772, 12656, 12882, 15006, 15252, 15500, 16256, 16770, 17556, 18632, 23256, 24492, 27722, 29070, 30800, 33306, 33672, 34410, 36290, 40200, 406...

[ "nonn" ]

A041219

[ 1, 1, 21, 22, 461, 483, 10121, 10604, 222201, 232805, 4878301, 5111106, 107100421, 112211527, 2351330961, 2463542488, 51622180721, 54085723209, 1133336644901, 1187422368110, 24881784007101, 26069206375211, 546265911511321, 572335117886532, 11992968269241960 ]

[ "nonn", "frac", "easy", "less" ]

A280466

[ 1, 3, 9, 27, 65, 179, 473, 1163, 2465, 6371, 15785, 36539 ]

[ "nonn", "more" ]

A355024

[ 1, 3, 10, 24, 55, 109, 206, 360, 606, 970, 1508, 2264, 3322, 4750, 6668, 9176, 12439, 16597, 21870, 28448, 36617, 46627, 58842, 73584, 91308, 112420, 137480, 166992, 201636, 242028, 288984, 343248, 405789 ]

[ "nonn", "easy" ]

A130709

[ 1, 1, 2, 4, 7, 13, 22, 41, 75, 138, 255, 482, 911, 1735, 3316, 6370, 12306, 23907, 46666, 91500, 180119, 355820, 705061, 1400722, 2788718, 5561720, 11107305, 22205839, 44429088, 88942741, 178120533, 356787834, 714732794, 1431763102, 2867860060 ]

[ "easy", "nonn" ]

A022619

[ 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 7, 7, 7, 0, 1, 0, 0, 1, 0, 35, 105, 273, 448, 715, 750, 715, 448, 273, 105, 35, 0, 1, 0, 0, 1, 0, 155, 1085, 6293, 27776, 105183, 327050, 876525, 2011776, 4032015, 7048811, 10855425, 1472...

[ "nonn", "tabf" ]

A016385

[ 1, -1, 1, 0, 0, 1, -1, 1, 0, 0, 0, 1, -1, 1, 0, -1, 2, -2, 1, 0, -1, 1, -1, 0, 0, 0, -1, 1, -1, 0, 1, -2, 2, -2, 1, 0, -1, 1, -1, 1, -1, 1, -1, 1, -1, 0, 1, -2, 2, -2, 1, 0, -1, 1, -1, 0, 0, 0, -1, ...

[ "sign", "fini", "full" ]

A308657

[ 3, 10, 178 ]

[ "nonn", "bref", "hard", "base" ]

A236501

[ 256, 2632, 27458, 284408, 2954930, 30642966, 318132117, 3300684904, 34257479784, 355481488428, 3689189768448, 38283796526416, 397297768359304, 4122943466702820, 42786260152594110, 444015373043625500 ]

[ "nonn" ]

A075509

[ 1, 1, 11, 131, 1761, 27601, 506651, 10674211, 251686881, 6524202561, 183991725451, 5605930566051, 183428104316161, 6409252239788881, 237948848526923620, 9346097294356705000, 386966245108218200000, 1.6836505067572364e+22, 7.676453057702832e+23 ]

[ "nonn", "easy", "eigen" ]

A012412

[ 1, 0, -1, -6, -15, 20, 255, 70, -3423, 46728, 501375, -3625358, -60112239, 420430556, 9211149311, -79037179650, -2033765765567, 18361020368016, 572833991092479, -5418169914165654, -201869115241158600 ]

[ "sign" ]

A110230

[ 32, 72, 120, 162, 168, 180, 200, 243, 264, 270, 280, 312, 378, 392, 396, 408, 440, 450, 456, 520, 552, 588, 594, 612, 616, 630, 680, 696, 700, 702, 728, 744, 750, 760, 780, 828, 882, 888, 918, 920, 945, 952, 968, 984, 990, 102...

[ "easy", "nonn" ]

A009371

[ 0, 1, 1, 4, 0, 45, -155, 1748, -13496, 151169, -1682191, 22018412, -307464872, 4746159613, -78744546907, 1410956472396, -27026759291728, 552443153007777, -11988735452427904, 275451486233018100, -6677966707663119000 ]

[ "sign", "easy" ]

A082090

[ 2, 3, 4, 4, 5, 5, 5, 5, 5, 5, 6, 5, 6, 6, 6, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 7, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 6, 7, 6, 6, 6...

[ "nonn" ]

A074803

[ 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4...

[ "nonn" ]

A152607

[ 1, 3, 7, 9, 71, 73, 79, 711, 713, 717, 971, 973, 1111, 1113, 1117, 1119, 7111, 7113, 7117, 9711, 9713, 11111, 11113, 11117, 11119, 71111, 71113, 71117, 97111, 97113, 111111, 111113, 111117, 111119, 711111, 711113, 711117, 971111 ]

[ "nonn", "base" ]

A256504

[ 0, 1, 1, 3, 1, 5, 6, 5, 1, 6, 7, 12, 10, 12, 11, 12, 1, 8, 16, 14, 17, 18, 18, 23, 13, 21, 18, 22, 23, 24, 19, 14, 1, 22, 20, 23, 24, 31, 27, 25, 26, 36, 28, 37, 29, 30, 42, 37, 22, 32, 37, 38, 35, 41, 36, ...

[ "nonn", "easy" ]

A066418

[ 2, 3, 4, 5, 6, 7, 8, 12, 15, 27, 30, 40, 44, 57, 117, 128, 171, 236, 399, 408, 510, 1623, 3597, 3915, 4616, 4684, 7335, 10197, 10768, 14144, 32768, 39387, 76035, 77097, 106605, 162450, 196080, 219966, 391696 ]

[ "nonn", "more" ]

A250438

[ 1296, 14400, 160000, 1000000, 6250000, 27562500, 121550625, 423536400, 1475789056, 4337012736, 12745506816, 32920473600, 85030560000, 198470250000, 463250390625, 996503062500, 2143588810000, 4311270849600, 8670998958336 ]

[ "nonn" ]

A183704

[ 31800, 4760784, 710460576, 106093597920, 15840740585184, 2365244332190880, 353161421431958900, 52731638795200910000, 7.873523002759948e+21, 1.1756200257088064e+24, 1.7553545118897582e+26 ]

[ "nonn" ]

A066980

[ 5, 7, 13, 15, 18, 23, 25, 28, 32, 33, 35, 38, 43, 45, 47, 50, 53, 55, 60, 63, 67, 68, 73, 77, 78, 83, 85, 88, 95, 98, 105, 108, 110, 113, 115, 117, 123, 127, 128, 130, 133, 137, 138, 140, 143, 145, 150, 153, 155, 158, ...

[ "easy", "nonn" ]

A303537

[ 1, 2, 2, 12, 22, 124, 276, 1496, 3686, 19436, 51068, 263720, 724860, 3681880, 10466920, 52450992, 153093254, 758495564, 2261603564, 11096526344, 33676743956, 163842737928, 504738342808, 2437418983888, 7605947276508, 36487283224952, 115140704639576 ]

[ "nonn" ]

A166817

[ 0, 0, 90, 1552, 9902, 41151, 133175, 364772, 885824, 1962990, 4046548, 7865396, 14558830, 25855557, 44312489, 73628216, 119048688, 187885564, 290170926 ]

[ "nonn" ]

A115907

[ 1, 2, 9, 13, 21, 80, 112, 129, 147, 225, 308, 349, 1063, 1282, 1300, 1635, 1880, 2686, 2956, 3517, 3759, 3907, 4058, 5025, 5196, 6742, 7606, 7708, 9244, 10154, 10596, 11259, 11719, 12687, 13167, 13599, 14081, 14624, 15937, 16437, 16766,...

[ "nonn" ]

A063057

[ 7059, 16566, 83127, 155265, 717816, 1336533, 4692864, 9375828, 17661567, 94178238, 177465387, 961030158, 1812060327, 9042662508, 17095324917, 89037683988, 177976357086, 858730036857, 1617360074715, 6792060711876 ]

[ "base", "nonn" ]

A156755

[ 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1, 1, 2, 1, 1, 2, 2, 2, 3, 1...

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

A042137

[ 1, 2, 3, 17, 37, 91, 128, 219, 566, 1351, 7321, 8672, 24665, 1192592, 2409849, 3602441, 20422054, 44446549, 109315152, 153761701, 263076853, 679915407, 1622907667, 8794453742, 10417361409, 29629176560, 1432617836289, 2894864849138, 4327482685427, 24532278276...

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

A014510

[ 1, 0, 1, 3, 11, 52, 287, 1871, 14034, 119292, 1133278, 11899423, 136843365, 1710542068, 23092317922, 334838609873, 5189998453040, 85634974475162, 1498612053315336, 27724322986333720, 540624298233507500 ]

[ "nonn" ]

A023378

[ 4, 10, 22, 112, 1300, 110110, 122320132, 13102213110010, 2.332222120300201e+21, 1.3321232011112314e+35, 1.2122133133313032e+58 ]

[ "nonn", "base" ]

A014730

[ 1, 9, 49, 121, 841, 2209, 15129, 39601, 271441, 710649, 4870849, 12752041, 87403801, 228826129, 1568397609, 4106118241, 28143753121, 73681302249, 505019158609, 1322157322201, 9062201101801, 23725150497409, 162614600673849, 425730551631121, 2918000611027441 ]

[ "nonn", "easy" ]

A127881

[ 241231, 7057861, 21166951, 52066891, 216295321, 654480151, 1619368381, 2411089396, 3486017011, 6776093041, 12182173471, 20592045301, 26260194241, 33113005531, 51096161161, 76160729191, 110218336621, 131302849486 ]

[ "nonn" ]

A246892

[ 30, 231, 58, 900, 673, 112, 2701, 3364, 1961, 216, 6210, 12481, 12544, 5711, 416, 12931, 33294, 57585, 46656, 16621, 802, 23400, 79345, 177648, 264981, 173056, 48393, 1546, 40281, 159688, 484297, 942216, 1216081, 643204, 140893, 2980, 63750 ]

[ "nonn", "tabl" ]

A101456

[ 5, 7, 7, 2, 5, 5, 3, 2, 5, 2, 2, 2, 3, 2, 5, 3, 3, 5, 3, 2, 3, 5, 5, 7, 7, 2, 3, 7, 7, 2, 7, 7, 7, 7, 3, 7, 3, 2, 7, 7, 5, 3, 7, 2, 7, 2, 5, 5, 2, 3, 2, 2, 7, 3, 7, 2, 3, 5, 3, 2, 5, 3, 5, 3...

[ "base", "easy", "nonn" ]

A271945

[ 0, 0, 4, 4, 40, 72, 428, 1036, 4816, 13712, 56020, 174612, 665080, 2180568, 7991676, 26951708, 96696224, 331269920, 1174584228, 4059317284, 14299305416, 49658576744, 174293008204, 606920893484, 2125899390576, 7413894423728, 25940068045428, 90539218468404 ]

[ "nonn", "easy" ]

A227331

[ 15, 104, 708, 4917, 33297, 204206, 1108382, 5361624, 23477312, 94474684, 353596604, 1242207201, 4125406694, 13026205724, 39292608858, 113681479364, 316556625809, 850933663116, 2213918991347, 5587988935294, 13711077238915 ]

[ "nonn" ]

A045971

[ 8, 27, 125, 81, 343, 3375, 1331, 243, 625, 9261, 2197, 10125, 4913, 35937, 42875, 729, 6859, 16875, 12167, 27783, 166375, 59319, 24389, 30375, 2401, 132651, 3125, 107811, 29791, 1157625, 50653, 2187, 274625, 185193, 456533, 50625, 68921, 3285...

[ "easy", "nonn" ]

A064533

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

[ "cons", "nonn" ]

A276175

[ 1, 1, 1, 1, 8, 36, 666, 222111, 685187756, 2819713283228248, 6.443359130932233e+26, 5.604757351123069e+45, 1.4861563788248215e+79 ]

[ "nonn" ]

A167575

[ 1473, 8169, 26529, 66345, 140865, 266793, 464289, 756969, 1171905, 1739625, 2494113, 3472809, 4716609, 6269865, 8180385, 10499433, 13281729, 16585449, 20472225, 25007145, 30258753, 36299049, 43203489, 51050985, 59923905 ]

[ "easy", "nonn" ]

A365996

[ 3, 18, 182, 2211, 29787, 427249, 6388662, 98408718, 1550202417 ]

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

A012440

[ 0, 2, -4, 398, -10344, 2050362, -188329260, 60987377670, -12776749381200, 6138167322301170, -2341662552659308500, 1.574696831249089e+21, -9.544428744642285e+23, 8.625982184254682e+26 ]

[ "sign" ]

A033248

[ 83, 521, 691, 787, 1163, 1193, 1291, 1409, 1627, 1913, 1931, 2099, 2273, 2347, 2579, 2689, 2713, 2833, 2897, 2939, 2953, 3067, 3209, 3323, 3371, 3691, 3851, 3889, 4451, 4513, 4817, 5099, 5147, 5153 ]

[ "nonn", "easy" ]

A003595

[ 1, 5, 7, 25, 35, 49, 125, 175, 245, 343, 625, 875, 1225, 1715, 2401, 3125, 4375, 6125, 8575, 12005, 15625, 16807, 21875, 30625, 42875, 60025, 78125, 84035, 109375, 117649, 153125, 214375, 300125, 390625, 420175, 546875, 588245, 765625, 8235...

[ "nonn" ]

A088986

[ 54, 91, 92, 115, 141, 142, 143, 144, 158, 205, 212, 213, 214, 215, 295, 301, 323, 324, 325, 391, 535, 685, 721, 799, 1135, 1345, 1465, 1535, 1711, 1941, 1981, 2101, 2215, 2302, 2303, 2304, 2425, 2641, 3865, 4411, 5461, 6505, 6625, ...

[ "nonn" ]

A299290

[ 1, 9, 37, 97, 203, 367, 603, 923, 1341, 1869, 2521, 3309, 4247, 5347, 6623, 8087, 9753, 11633, 13741, 16089, 18691, 21559, 24707, 28147, 31893, 35957, 40353, 45093, 50191, 55659, 61511, 67759, 74417, 81497, 89013, 96977, 105403, 114303, 123...

[ "nonn" ]

A164437

[ 1, 2, 4, 8, 13, 22, 37, 62, 104, 174, 292, 490, 821, 1376, 2308, 3870, 6487, 10876, 18237, 30576, 51261, 85946, 144102, 241600, 405064, 679140, 1138659, 1909078, 3200774, 5366466, 8997477, 15085240, 25292069, 42404978, 71096617, 119201278, 1998...

[ "nonn", "easy" ]

A141907

[ 1, 11, 141, 1111, 16661, 172271, 1016101, 17399371, 128404821, 1302442031, 16784848761, 131546645131, 1860584850681, 19465322356491, 129218121812921, 1955997557995591, 14000280008200040, 154002080080200450 ]

[ "nonn", "base" ]

A208982

[ 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 16, 17, 18, 19, 21, 22, 23, 27, 28, 29, 30, 36, 39, 40, 41, 42, 43, 45, 46, 52, 57, 58, 60, 63, 65, 66, 67, 69, 70, 71, 72, 75, 77, 78, 81, 82, 88, 95, 96, 99, 100, 101, 102, 10...

[ "nonn", "base" ]

A064654

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

[ "nonn", "easy" ]

A140873

[ -60, -240, -280, 840, -1440, -1200, 3360, 5040, -6720, -4704, -15120, 26880, 26880, -26880, -17024, -60480, -110880, 161280, 129024, -96768, -57600, 332640, -604800, -705600, 806400, 564480, -322560, -184320, 1330560, 2882880, -4435200, -3991680, 35481...

[ "tabl", "sign" ]

A202377

[ 11362, 68965, 327679, 1285065, 4830102, 16261405, 51833855, 156557263, 450660848, 1250551900, 3351714309, 8722793052, 22118866900, 54801500414, 132976157412, 316751623141, 741810250017, 1710936850978, 3891524278627 ]

[ "nonn" ]

A240220

[ 0, 0, 0, 0, 1, 0, 2, 3, 4, 4, 11, 7, 19, 23, 22, 28, 53, 49, 88, 86, 92, 124, 203, 189, 250, 341, 386, 390, 594, 533, 815, 972, 1130, 1527, 1663, 1380, 2022, 2738, 3246, 3295, 4601, 4628, 6407, 6935, 6306, 8459, 11486, 114...

[ "nonn", "easy" ]

A222738

[ 1, 0, 1, 1, 2, 2, 4, 4, 7, 8, 14, 16, 23, 28, 40, 49, 67, 82, 110, 135, 180, 220, 286, 349, 448, 548, 694, 846, 1061, 1290, 1608, 1948, 2406, 2909, 3566, 4300, 5242, 6298, 7637, 9149, 11044, 13189, 15847, 18872, 22582, 26817, ...

[ "nonn" ]

A057411

[ 2, 54, 737, 7330, 60362, 438284, 2908069, 18032906, 106088843, 598428100, 3261717223, 17278076588, 89351738840, 452686823796, 2253216812878, 11043624323310, 53399946187312, 255135202590382, 1206067676613670 ]

[ "nonn" ]

A255539

[ 1, 1, 1, 3, 4, 10, 19, 51, 112, 300, 746, 2042, 5450, 15197, 42192, 119561, 339594 ]

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

A144016

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

[ "base", "nonn" ]

A188536

[ 797, 1077, 1651, 1691, 1895, 2059, 2817, 3263, 4193, 4615, 4803, 4987, 5453, 5501, 5745, 5993, 6427, 6761, 7149, 7547, 7797, 7943, 8489, 8705, 9439, 9747, 9899, 10201, 10347, 10661, 11059, 12367, 12591, 12815, 13095, 13861, 14359, 14693 ]

[ "nonn" ]

A129966

[ 0, 1, 3, 15, 21, 28, 36, 45, 55, 91, 105, 120, 136, 153, 171, 231, 253, 276, 300, 325, 351, 435, 465, 496, 528, 561, 595, 703, 741, 780, 820, 861, 903, 1035, 1081, 1128, 1176, 1225, 1275, 1431, 1485, 1540, 1596, 1653, 1711, 18...

[ "nonn", "easy" ]

A260524

[ 468950021, 493108481, 659846021, 5936122901, 8144063621, 11408333333, 12601267541, 14252656133, 18074903681, 27223783841, 30633711701, 31093792133, 31797754721, 61426533761, 65085388961, 86610942881, 91945013333, 92380393121, 102538073177 ]

[ "nonn" ]

A221757

[ 0, 4, 0, 43, 44, 736, 1680, 14548, 47314, 307629, 1201506, 6768794, 29159864, 152481584, 692301668, 3481342319, 16253985408, 80073291120, 379418253880, 1849109113064, 8830193356854, 42791854403241, 205182113819686 ]

[ "nonn" ]

A146517

[ 0, 64, 23924, 7262690, 3369041920, 1194672642926 ]

[ "nonn" ]

A041820

[ 20, 21, 83, 436, 519, 1474, 10837, 12311, 244746, 257057, 2044145, 4345347, 6389492, 36292807, 115267913, 151560720, 6177696713, 6329257433, 25165469012, 132156602493, 157322071505, 446800745503 ]

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

A175007

[ 1, 2, 3, 5, 6, 9, 11, 12, 14, 17, 18, 20, 22, 25, 26, 29, 30, 33, 34, 36, 38, 40, 42, 45, 47, 48, 50, 52, 54, 57, 58, 60, 62, 64, 66, 69, 70, 73, 74, 76, 78, 80, 82, 84, 86, 89, 91, 93, 95, 96, 98, 100, 102, 10...

[ "nonn" ]

A092829

[ 1, 3, 2, 4, 5, 6, 7, 10, 9, 11, 12, 8, 14, 15, 17, 16, 22, 13, 20, 19, 24, 23, 26, 18, 35, 29, 28, 25, 60, 21, 33, 32, 30, 37, 43, 27, 47, 38, 39, 31, 49, 34, 41, 46, 45, 44, 64, 40, 55, 36, 68, 50, 58, 48, 5...

[ "nonn" ]

A288413

[ 1039, 1129, 13749311599, 6332659870762851000, 1.4083168975803547e+135 ]

[ "nonn" ]

A132808

[ 1, 2, 1, 5, 3, 1, 14, 6, 6, 1, 42, 10, 20, 10, 1, 132, 15, 50, 50, 15, 1, 429, 21, 105, 175, 105, 21, 1, 1430, 28, 196, 490, 490, 196, 28, 1, 4862, 36, 336, 1176, 1764, 1176, 336, 36, 1, 16796, 45, 540, 2520, 5292, 5...

[ "nonn", "tabl" ]

A112021

[ 0, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 9, 10, 12, 14, 17, 19, 23, 26, 30, 35, 40, 46, 52, 60, 67, 77, 87, 98, 111, 124, 140, 157, 175, 197, 219, 244, 272, 302, 336, 372, 412, 456, 503, 556, 613, 675, 742, 816, 896, 98...

[ "nonn" ]

A070419

[ 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, 13, 19, 25, 31, 1, 7, ...

[ "nonn", "easy" ]

A269278

[ 0, 1620, 46872, 1104264, 23549400, 474819408, 9230973192, 174918307032, 3252108138552, 59583135523968, 1078987217468328, 19354648265646120, 344454190256524800, 6089633274402902000, 107049250394211730000 ]

[ "nonn" ]

A253269

[ 89391959, 89591959, 519512471, 519512473, 531324041, 561324041, 699023791, 699023891, 874481011, 874487011, 1862537503, 2232483271, 2232483871, 2608559351, 3127181789, 3157181789, 3928401949, 3928401989, 4070171669, 4070171969, 5225628323, 5309756339, 5525628323 ]

[ "nonn", "base" ]

A081971

[ 1, 5, 37, 1207, 7793, 532541, 35036093, 419218787, 98431469723, 14642854403167, 6408932966879, 4075936031956831, 504163702484694140, 78452289445098140000, 9.442422052170405e+21, 7.11841627568479e+23 ]

[ "nonn", "frac", "changed" ]

A288744

[ 1, 1, 9, 29, 112, 405, 1514, 5565, 20249, 73416, 265616, 957677, 3441282, 12329838, 44062706, 157105923, 559009643, 1985301783, 7038496811, 24913917722, 88058727525, 310832221932, 1095854282575, 3859201682187, 13576884290502, 47719628447310, 167579774234059 ]

[ "nonn" ]

A124263

[ 3, 29, 283, 2819, 28183, 281807, 2818043, 28180393, 281803927, 2818039241, 28180392407, 281803924067, 2818039240619, 28180392406171, 281803924061641, 2818039240616359, 28180392406163580, 281803924061635780, 2818039240616358000, 28180392406163580000, 281803924061635770000 ]

[ "nonn" ]

A179618

[ 5, 11, 11, 21, 35, 21, 43, 93, 93, 43, 85, 269, 314, 269, 85, 171, 747, 1213, 1213, 747, 171, 341, 2115, 4375, 6427, 4375, 2115, 341, 683, 5933, 16334, 31387, 31387, 16334, 5933, 683, 1365, 16717, 59925, 159651, 202841, 159651, 5992...

[ "nonn", "tabl" ]

A189704

[ 2, 3, 4, 6, 8, 11, 12, 13, 16, 17, 18, 21, 22, 24, 25, 26, 28, 30, 33, 34, 36, 37, 38, 40, 42, 45, 46, 48, 49, 50, 52, 55, 56, 57, 59, 61, 64, 65, 66, 69, 70, 71, 74, 75, 77, 78, 79, 81, 84, 85, 86, 88, 90, 93,...

[ "nonn" ]

A223618

[ 22, 484, 6504, 57238, 367216, 1856100, 7795951, 28248007, 90732638, 263650284, 703980614, 1748547620, 4079672416, 9012596316, 18975151965, 38281575869, 74344179766, 139521245076, 253869738212, 449160402594, 774624001120 ]

[ "nonn" ]

A305150

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

[ "nonn" ]

A379810

[ 15, 46, 104, 305, 261, 1691, 380, 406, 508, 1175, 3281, 7729, 2827, 10877, 6289, 13289, 1737, 4829, 2945, 3205, 9673, 1940, 21253, 1970, 31921, 21127, 34861, 5457, 22219, 120983, 99893, 110843, 148613, 105029, 164107, 12905, 89279, 15245, 1...

[ "nonn" ]

A087631

[ 1, 6, 35, 268, 2092, 17263, 146565, 1274244, 11272025, 101053126, 915743823, 8372470456, 77114448042 ]

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

A173784

[ 1, 2, 4, 6, 9, 12, 18, 23, 28, 34, 42, 49, 61, 68, 80, 91, 103, 111, 128, 138, 156 ]

[ "nonn" ]

A320064

[ 0, 1, 16, 312, 7552, 220800, 7597824, 301321216, 13545271296, 681015214080, 37879390720000, 2309968030334976, 153275504883695600, 10995166075754120000, 847974316241667800000, 6.997145995947792e+22, 6.151490510604351e+24, 5.740354305190087e+26, 5.666992138783981e+28 ]

[ "nonn" ]

A338681

[ 1, 1, 1, 4, 1, 61, 1, 1681, 5041, 15121, 1, 13638241, 1, 8648641, 1816214401, 181880899201, 1, 45951781075201, 1, 3379365788198401, 1689515283456001, 14079294028801, 1, 4.4548571035446684e+21, 538583682060103700000, 32382376266240000 ]

[ "nonn" ]

A030887

[ 2, 4, 12, 51, 257, 1546, 10827, 86621, 779597, 7795977, 85755752, 1029069031, 13377897415, 187290563819, 2809358457289, 44949735316634, 764145500382787, 13754619006890172, 261337761130913280, 5226755222618266000 ]

[ "nonn" ]

A051083

[ 2, 3, 11, 19, 59, 67, 73, 83, 89, 107, 131, 139, 163, 179, 227, 233, 251, 257, 283, 307, 331, 347, 353, 419, 443, 467, 499, 523, 563, 571, 577, 587, 593, 601, 619, 643, 683, 691, 739, 787, 811, 859, 881, 907, 937, 947, 971, ...

[ "nonn", "easy" ]

A318223

[ 1, 1, -3, 13, -71, 441, -2699, 9157, 206193, -8443151, 236126701, -6169406979, 161388751657, -4327824442967, 120012465557349, -3450029411174219, 102741264191105760, -3160671409312412700, 99982488984008590000, -3.2300949128662163e+21, 1.0548107353484248e+23, -3.4232605416959...

[ "sign" ]

A206972

[ 3353, 11242609, 20232472915, 36046917008352, 63628877431006150 ]

[ "nonn" ]

A216707

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

[ "nonn", "cons" ]

A010093

[ 1, 0, 82677, 40346376, 10472045985, 1633772700952, 167982323077989, 12100259735369136, 638087062835640800, 25460924781434106000, 788752649609653500000, 1.9363706818511193e+22 ]

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