id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A046659
[ 1, 4, 9, 25, 36, 100, 121, 225, 289, 484, 529, 841, 900, 1089, 1156, 1681, 2116, 2209, 2601, 2809, 3364, 3481, 4356, 4761, 5041, 6724, 6889, 7225, 7569, 7921, 8836, 10201, 10404, 11236, 11449, 12769, 13225, 13924, 15129, 17161, 18769, ...
[ "nonn" ]
A031178
[ 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1...
[ "nonn", "base" ]
A295152
[ 20, 25, 26, 27, 28, 32, 47, 48, 60 ]
[ "nonn", "fini", "full" ]
A039810
[ 1, 2, 1, 5, 6, 1, 15, 32, 12, 1, 52, 175, 110, 20, 1, 203, 1012, 945, 280, 30, 1, 877, 6230, 8092, 3465, 595, 42, 1, 4140, 40819, 70756, 40992, 10010, 1120, 56, 1, 21147, 283944, 638423, 479976, 156072, 24570, 1932, 72, 1, 115...
[ "nonn", "tabl", "changed" ]
A107025
[ 1, 1, 1, 1, 1, 2, 8, 29, 85, 211, 464, 938, 1808, 3459, 6826, 14198, 30960, 69143, 154433, 340006, 734561, 1561313, 3286129, 6900097, 14542101, 30855957, 65908862, 141395972, 303745077, 651763377, 1395140215, 2978858672 ]
[ "easy", "nonn" ]
A104602
[ 1, 1, 2, 10, 70, 642, 7246, 97052, 1503700, 26448872, 520556146, 11333475922, 270422904986, 7016943483450, 196717253145470, 5925211960335162, 190825629733950460, 6543503207678564000, 238019066600097600000, 9.153956822981329e+21, 3.711261084285651e+23 ]
[ "nonn" ]
A019285
[ 60, 240, 960, 4092, 16368, 58254, 61440, 65472, 116508, 466032, 710400, 983040, 1864128, 3932160, 4190208, 67043328, 119304192, 268173312, 1908867072, 7635468288, 16106127360, 711488165526, 1098437885952, 1422976331052 ]
[ "nonn", "more" ]
A097315
[ 1, 37, 1405, 53353, 2026009, 76934989, 2921503573, 110940200785, 4212806126257, 159975692596981, 6074863512559021, 230684837784645820, 8759948972303982000, 332647376109766640000, 1.263184034319883e+22, 4.7967728566544576e+23, 1.821510501494374e+25, 6.916943132821967e+26 ]
[ "nonn", "easy" ]
A376079
[ 1, 6, 2, 8, 6, 12, 4, 12, 6, 12, 4, 20, 12, 54, 8, 14, 12, 30, 6, 32, 12, 54, 8, 18, 14, 1944, 12, 36, 54, 1944, 16, 18, 12, 54, 12, 56, 30, 66, 20, 1944, 22, 48, 8, 68, 54, 1944, 24, 38, 18, 78, 14, 80, 1944, ...
[ "nonn" ]
A051100
[ 2, 3, 11, 17, 19, 41, 43, 59, 67, 73, 83, 89, 97, 107, 113, 131, 137, 139, 163, 179, 193, 211, 227, 233, 241, 251, 257, 281, 283, 307, 313, 331, 337, 347, 353, 379, 401, 409, 419, 433, 443, 449, 457, 467, 491, 499, 521, 52...
[ "nonn", "easy" ]
A084799
[ 1, 9, 12, 16, 19, 24, 28, 34, 39, 45, 51, 57, 64, 71, 78, 85, 93, 102, 110, 119, 127, 137, 146, 156, 166, 176, 187, 197, 208, 219, 231, 243, 254, 267, 279, 291, 304, 317, 330, 344, 358, 371, 386, 400, 414, 429, 444, 459, ...
[ "nonn" ]
A219055
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 1, 1, 1, 1, 3, 1, 1, 2, 2, 1, 3, 1, 1, 2, 2, 1, 3, 1, 0, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 1, 2, 2, 2, 2, 3, 1, 1, 3, 2, 1, 4, 1, 0, 3, 3...
[ "nonn", "nice" ]
A235643
[ 16, 68, 296, 1300, 5728, 25268, 111512, 492196, 2172592, 9590180, 42332936, 186866356, 824867584, 3641141012, 16072772984, 70948650820, 313182494032, 1382454408452, 6102448992488, 26937513095764, 118907935627168, 524885022092660, 2316954583165784 ]
[ "nonn" ]
A139085
[ 1, 1, -2, 15, -158, 2058, -31148, 529209, -9882430, 200035242, -4346788764, 100697241762, -2473869382964, 64191822293220, -1753530264442280, 50293662225989736, -1511101241900118000, 47467602491174750000 ]
[ "sign" ]
A145674
[ 2, 5, 7, 17, 13, 19, 23, 53, 31, 43, 41, 59, 79, 67, 71, 137, 151, 157, 127, 131, 149, 181, 167, 233, 197, 211, 199, 241, 229, 239, 479, 419, 457, 449, 283, 293, 313, 349, 337, 401, 359, 367, 373, 397, 389, 463, 421, 727, ...
[ "nonn", "base" ]
A039040
[ 0, 1, 4, 5, 6, 7, 8, 11, 12, 13, 17, 23, 28, 29, 32, 33, 34, 35, 36, 39, 40, 41, 42, 43, 46, 47, 48, 49, 50, 53, 54, 55, 56, 57, 60, 61, 62, 66, 72, 77, 78, 81, 82, 83, 84, 85, 88, 89, 90, 91, 92, 95, 96, 97, ...
[ "nonn", "base", "easy" ]
A236621
[ 2624, 50000, 914808, 16988098, 316897424, 5943956586, 111193237764, 2076868598026, 38825560596218, 726292336006660, 13580276910279300, 253878029634452100, 4747015954319569000, 88764643545430360000 ]
[ "nonn" ]
A017356
[ 2401, 83521, 531441, 1874161, 4879681, 10556001, 20151121, 35153041, 57289761, 88529281, 131079601, 187388721, 260144641, 352275361, 466948881, 607573201, 777796321, 981506241, 1222830961, 1506138481 ]
[ "nonn", "easy" ]
A103192
[ 1, 3, 5, 15, 17, 19, 21, 31, 33, 35, 37, 47, 49, 51, 53, 63, 65, 67, 69, 79, 81, 83, 85, 95, 97, 99, 101, 111, 113, 115, 117, 127, 129, 131, 133, 143, 145, 147, 149, 159, 161, 163, 165, 175, 177, 179, 181, 191, 193, 19...
[ "nonn", "base" ]
A350870
[ 81, 2025, 3025, 494209, 24502500, 25502500, 52881984, 60481729, 6049417284, 6832014336, 101558217124, 108878221089, 123448227904, 127194229449, 152344237969, 213018248521, 217930248900, 249500250000, 250500250000, 284270248900, 289940248521, 371718237969, 413908229449, ...
[ "nonn", "base" ]
A387369
[ 1, 15, 174, 1850, 18915, 189525, 1877596, 18476820, 181083285, 1770245675, 17278828842, 168496597230, 1642259489143, 16002398658225, 155919866646840, 1519307275471400, 14806582620440552, 144329229195062530, 1407215890063072000, 13724133021646678000, 133885448856624270000 ]
[ "nonn" ]
A091547
[ 1, 3, 11, 93, 1837, 64543, 3754807, 364026729, 57155586089, 13507554452859, 4491954229297987, 2028035990665237500, 1.2271681866378138e+21, 9.875859651015266e+23, 1.0415004278333557e+27 ]
[ "nonn", "easy" ]
A154788
[ 1, 2, 4, 8, 10, 12, 24, 40, 48, 56, 128, 144, 192, 256, 384, 480, 576, 768, 1536, 4608, 6144, 6912, 15360, 36864, 294912 ]
[ "nonn", "more" ]
A301636
[ 0, 0, 1, 1, 1, 0, 1, 2, 1, 1, 0, 2, 4, 2, 4, 1, 1, 4, 2, 4, 9, 4, 2, 4, 1, 1, 5, 4, 4, 5, 5, 2, 0, 2, 5, 1, 1, 5, 8, 5, 1, 1, 5, 2, 0, 0, 2, 8, 10, 4, 2, 4, 5, 1, 1, 1, 1, 5, 10, 8, 5, 5, 9, ...
[ "nonn", "tabl" ]
A136760
[ 1, 1, 2, 6, 2, 1, 8, 6, 6, 6, 6, 8, 1, 1, 2, 4, 8, 1, 3, 7, 1, 4, 1, 2, 7, 2, 6, 2, 7, 2, 8, 3, 1, 4, 1, 7, 3, 1, 6, 3, 1, 7, 3, 1, 1, 5, 3, 1, 1, 5, 3, 2, 1, 8, 5, 3, 2, 1, 1, 8, 6, 4, 3, 2...
[ "base", "easy", "nonn" ]
A191152
[ 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1...
[ "nonn" ]
A142645
[ 11, 67, 179, 347, 571, 683, 739, 907, 1019, 1187, 1523, 1579, 1747, 2027, 2083, 2251, 2531, 2699, 3203, 3259, 3371, 3539, 3931, 4099, 4211, 4547, 4603, 5051, 5107, 5387, 5443, 5779, 6451, 6563, 6619, 6899, 7459, 7907, 7963, 8243, 8467, ...
[ "nonn", "easy" ]
A078276
[ 2, 222, 24042, 2587862, 19460805582, 194783456187402, 1949652919092569300, 1.951471282746473e+22, 1.9532896464010203e+26, 2.0369261918737493e+30, 2.0387527373464783e+34, 2.0405711018192072e+38, 2.0423894654738365e+42 ]
[ "nonn", "base" ]
A212794
[ 10, 15, 45, 55, 78, 91, 105, 120, 136, 153, 190, 210, 300, 325, 351, 406, 435, 465, 561, 595, 630, 666, 703, 741, 780, 820, 861, 990, 1035, 1225, 1275, 1326, 1378, 1431, 1485, 1540, 1653, 1711, 1770, 1830, 1891, 2080, 2145, 2278, ...
[ "nonn" ]
A128724
[ 1, 1, 3, 9, 1, 30, 5, 1, 107, 23, 6, 1, 399, 105, 31, 7, 1, 1537, 477, 156, 40, 8, 1, 6069, 2166, 771, 219, 50, 9, 1, 24434, 9849, 3772, 1165, 295, 61, 10, 1, 99924, 44869, 18347, 6083, 1676, 385, 73, 11, 1, 413943, 2048...
[ "nonn", "tabf" ]
A352153
[ 1, 5, 3, 2, 2, 1, 1, 1, 1, 1, 0, 3, 0, 1, 6, 2, 0, 5, 0, 5, 0, 4, 0, 1, 4, 1, 0, 1, 0, 3, 0, 1, 0, 0, 1, 2, 0, 0, 0, 2, 0, 0, 0, 2, 2, 0, 0, 0, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1...
[ "nonn", "base" ]
A151924
[ 2, 2, 8, 8, 9, 2, 9, 7, 2, 8, 1, 0, 3, 4, 0, 4, 3, 6, 4, 8, 2, 1, 4, 1, 4, 1, 7, 2, 1, 7, 3, 7, 2, 9, 6, 4, 3, 6, 2, 1, 3, 9, 3, 5, 3, 8, 0, 1, 8, 5, 6, 6, 6, 1, 4, 8, 2, 9, 0, 2, 3, 6, 3, 8...
[ "nonn", "cons" ]
A211260
[ 84, 546, 3552, 23154, 151218, 989484, 6486618, 42598386, 280208436, 1845953430, 12177085710, 80422381488, 531677196078, 3517904882982, 23292441203544, 154303014921810, 1022587652767170, 6778549963517052, 44939890595804200 ]
[ "nonn" ]
A157335
[ 1, 6, 42, 287, 1968, 13488, 92449, 633654, 4343130, 29768255, 204034656, 1398474336, 9585285697, 65698525542, 450304393098, 3086432226143, 21154721189904, 144996616103184, 993821591532385, 6811754524623510, 46688460080832184, 320007466041201800 ]
[ "easy", "nonn" ]
A085205
[ 2, 6, 5, 16, 15, 12, 19, 43, 40, 13, 44, 52, 124, 41, 31, 47, 127, 152, 125, 115, 32, 53, 136, 388, 153, 379, 116, 34, 56, 155, 416, 389, 469, 380, 118, 35, 60, 164, 478, 417, 1237, 470, 382, 119, 36, 128, 178, 506, 479,...
[ "nonn", "tabl" ]
A019319
[ 1, 20, 400, 5362, 71852, 815677, 9260610, 94305342, 958605819, 8866424380, 81766238574, 692390232505 ]
[ "nonn", "hard", "nice", "fini" ]
A186893
[ 1, 3, 7, 11, 31, 59, 127, 251, 377, 433, 1019, 1969, 2047, 3449, 4091, 8191, 11327, 15737, 16379, 32689, 36737, 64889, 65531 ]
[ "nonn" ]
A161790
[ 1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 19, 20, 22, 23, 25, 26, 29, 32, 34, 37, 38, 40, 41, 43, 44, 46, 47, 50, 52, 53, 55, 58, 59, 61, 64, 65, 67, 68, 71, 73, 74, 76, 79, 80, 82, 83, 85, 86, 88, 89, 92, 94, 95, 97,...
[ "nonn" ]
A260592
[ 1100, 10, 1110100, 10, 11010, 10, 1111000, 10, 1100, 10, 11100, 10, 1.1011111010110112e+58, 10, 1.1111010110111011e+55, 10, 1100, 10, 11101100, 10, 11010, 10 ]
[ "nonn" ]
A215399
[ 1, 1, 1, 3, 6, 27, 99, 462, 2205, 11414, 61028, 337089, 1894854, 10794718, 61989059, 357903580, 2073376576, 12037807836 ]
[ "nonn" ]
A144821
[ 1, 1, 9, 81, 765, 6885, 62613, 563517, 5077569, 45701037, 411364413, 3702279717, 33321067929, 299889611361, 2699011010385, 24291099589185, 218619937132623, 1967579434193607, 17708215277809324, 159373937500283900 ]
[ "eigen", "nonn" ]
A347678
[ 1, 1, 2, 1, 6, 6, 1, 12, 32, 22, 1, 20, 100, 172, 92, 1, 30, 240, 744, 956, 422, 1, 42, 490, 2364, 5328, 5492, 2074, 1, 56, 896, 6174, 21236, 37618, 32490, 10754, 1, 72, 1512, 14056, 68030, 181140, 264612, 197144, 58202, 1, ...
[ "nonn", "tabl" ]
A048516
[ 0, 0, 1, 0, 4, 1, 0, 11, 3, 1, 0, 26, 7, 3, 1, 0, 57, 14, 6, 3, 1, 0, 120, 26, 11, 6, 3, 1, 0, 247, 46, 19, 10, 6, 3, 1, 0, 502, 79, 31, 16, 10, 6, 3, 1, 0, 1013, 133, 49, 25, 15, 10, 6, 3, 1, 0, 2036, ...
[ "nonn", "tabl" ]
A133825
[ 1, 1, 3, 1, 1, 3, 6, 3, 1, 1, 3, 6, 10, 6, 3, 1, 1, 3, 6, 10, 15, 10, 6, 3, 1, 1, 3, 6, 10, 15, 21, 15, 10, 6, 3, 1, 1, 3, 6, 10, 15, 21, 28, 21, 15, 10, 6, 3, 1, 1, 3, 6, 10, 15, 21, 28, 36, 28, 21, ...
[ "easy", "nonn", "tabf" ]
A130832
[ 20, 420, 160420, 25600160420, 655360000025600200000, 4.294967296e+41 ]
[ "nonn" ]
A001328
[ 6, 438, 3962646, 10417184196975, 9.954761196199928e+21, 5.057490251219818e+33, 1.9305878765411007e+48, 7.465987936826206e+65 ]
[ "nonn" ]
A326990
[ 0, 0, 3, 0, 5, 3, 7, 0, 12, 5, 11, 3, 13, 7, 23, 0, 17, 12, 19, 5, 31, 11, 23, 3, 30, 13, 39, 7, 29, 23, 31, 0, 47, 17, 47, 12, 37, 19, 55, 5, 41, 31, 43, 11, 77, 23, 47, 3, 56, 30, 71, 13, 53, 39, 71, 7, ...
[ "nonn" ]
A161980
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 55, 12, 91, 14, 15, 16, 17, 18, 57, 20, 21, 110, 253, 24, 275, 182, 27, 28, 87, 30, 31, 32, 33, 34, 455, 36, 333, 114, 741, 40, 1189, 42, 215, 220, 45, 506, 893, 48, 931, 550, 51, 364...
[ "base", "nonn" ]
A200040
[ 2, 28, 84, 218, 444, 808, 1330, 2068, 2996, 4230, 5740, 7552, 9746, 12348, 15304, 18782, 22732, 27144, 32162, 37784, 43912, 50790, 58332, 66496, 75494, 85280, 95736, 107166, 119452, 132524, 146646, 161752, 177688, 194822, 213008, 232132, 252534...
[ "nonn" ]
A206058
[ 19832, 167960, 1278672, 11155584, 101369476, 910785080, 8150091296, 73102971728, 659630705472, 5908995673000, 53009382259744, 478167664129504, 4283688188281176, 38437914754884700, 346627362250708030 ]
[ "nonn" ]
A349260
[ 1, 2, 6, 8, 24, 120, 216, 128, 384, 1920, 3456, 17280, 120960, 432000, 279936, 32768, 98304, 491520, 884736, 4423680, 30965760, 110592000, 71663616, 358318080, 2508226560, 8957952000, 62705664000, 689762304000, 3072577536000, 5598720000000, 470184984576, ...
[ "nonn" ]
A352020
[ 1, 1, 4, 99, 4308, 283575, 25673506, 3037201300, 454292561764, 83892724766919, 18770366957242024, 5009355553568692000, 1.573355916010922e+21, 5.748383339587203e+23, 2.4182579720448316e+26, 1.1608847025228825e+29 ]
[ "nonn" ]
A275953
[ 6, 30, 204, 1446, 11550, 108204, 1091526, 11998830, 146864484, 1920044166, 26872081230, 407766664284, 6548790510726, 111305007240510, 2018907373622004, 38462931870864490, 769155464685741800, 16240360254478668000, 358012008058965600000, 8.233510983226618e+21, 1.984054530506682...
[ "nonn", "base" ]
A029786
[ 8, 27, 343, 512, 10648, 19683, 79507, 103823, 110592, 140608, 148877, 250047, 314432, 456533, 778688, 3869893, 5088448, 5545233, 6539203, 6644672, 7077888, 10941048, 11089567, 16003008, 18191447, 27818127, 54010152, 67917312, 75686967, 86350888, 96071912 ]
[ "nonn", "base" ]
A056557
[ 0, 0, 1, 1, 0, 1, 1, 2, 2, 2, 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 0, 1, 1, 2, 2, 2, 3, 3...
[ "nonn", "changed" ]
A335746
[ 1, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 8, 9, 11, 14, 16, 19, 23, 27, 32, 38, 45, 52, 61, 71, 83, 96, 111, 128, 148, 170, 195, 224, 256, 293, 334, 380, 432, 491, 557, 630, 713, 805, 908, 1024, 1152, 1295, 1455, 1632, 182...
[ "nonn" ]
A123436
[ 1, 2, 4, 11, 33, 148, 902, 6349, 38037, 210384 ]
[ "nonn", "more" ]
A096649
[ 3, 23, 199, 2297, 30013, 510481, 9699667, 223092827, 6469693189, 200560490057, 7420738134751, 304250263527163, 13082761331669940, 614889782588491400, 32589158477190046000, 1.1728838135940697e+23 ]
[ "nonn" ]
A253942
[ 3, 18, 63, 168, 378, 756, 1386, 2376, 3861, 6006, 9009, 13104, 18564, 25704, 34884, 46512, 61047, 79002, 100947, 127512, 159390, 197340, 242190, 294840, 356265, 427518, 509733, 604128, 712008, 834768, 973896, 1130976, 1307691, 1505826, 1727271, 1...
[ "nonn", "easy" ]
A054511
[ 3, 3, 10, 3, 6, 3, 12, 3, 38, 39, 8, 3, 3, 3, 3, 18, 24, 12, 3, 48, 6, 3, 30, 3, 63, 36, 90, 3, 30, 3, 3, 60, 111, 3, 120, 3, 3, 3, 132, 102, 3, 120, 3, 96, 3, 63, 216, 198, 90, 205, 144, 46, 3, 192, 165, 5...
[ "nonn", "easy" ]
A216881
[ 2, 3, 5, 7, 11, 13, 17, 19, 23, 31, 37, 41, 47, 53, 59, 61, 67, 73, 79, 83, 89, 97, 101, 103, 107, 109, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 199, 223, 227, 229, 233, 241, 251, 257, 263, 269, ...
[ "nonn", "easy" ]
A079980
[ 1, 0, 1, 2, 3, 8, 12, 27, 52, 95, 196, 369, 720, 1408, 2709, 5292, 10249, 19894, 38675, 74992, 145692, 282823, 549000, 1066095, 2069496, 4018065, 7801024, 15144960, 29404281, 57086680, 110832225, 215178138, 417759539, 811069560, 1574664364 ]
[ "nonn", "easy" ]
A342394
[ 1, 3, 11, 68, 629, 7793, 117655, 2097228, 43046772, 1000000649, 25937424611, 743008379146, 23298085122493, 793714773371841, 29192926025401530, 1152921504608946000, 48661191875666870000, 2.18591155973874e+21, 1.0412735029791125e+23 ]
[ "nonn", "easy" ]
A185581
[ 2, 5, 3, 3, 5, 5, 7, 4, 0, 4, 4, 3, 3, 1, 2, 1, 0, 2, 5, 2, 9, 4, 8, 6, 2, 7, 9, 5, 7, 1, 8, 9, 2, 9, 1, 1, 1, 1, 2, 9, 7, 9, 6, 9, 6, 3, 9, 8, 2, 7, 4, 9, 9, 5, 8, 9, 7, 0, 3, 6, 9, 7, 0, 6...
[ "cons", "nonn" ]
A339797
[ 756, 4128, 18240, 73368, 277536, 1001760, 3512160, 12009480, 40390944, 133893936, 439304736, 1428450072, 4613176800, 14809528896, 47315578848, 150534443304, 477237381024, 1508232832080, 4753573999776, 14945425070136, 46886868887136, 146802927436128, 458818252975200 ]
[ "nonn" ]
A309906
[ 4, 32, 8, 160, 8, 384, 8, 384, 16, 256, 8, 7680, 8, 128, 32, 1792, 8, 4096, 8, 3840, 32, 256, 8, 36864, 16, 128, 32, 2560, 8, 24576, 8, 4096, 32, 128, 32, 327680, 8, 128, 32, 36864, 8, 18432, 8, 2560, 128, 256, 8, 344064, ...
[ "nonn" ]
A193608
[ 15, 52, 125, 246, 427, 680, 1017, 1450, 1991, 2652, 3445, 4382, 5475, 6736, 8177, 9810, 11647, 13700, 15981, 18502, 21275, 24312, 27625, 31226, 35127, 39340, 43877, 48750, 53971, 59552, 65505, 71842, 78575, 85716, 93277, 101270, 109707, 11860...
[ "nonn", "easy" ]
A056060
[ 1, 2, 3, 6, 10, 5, 35, 70, 14, 7, 462, 231, 429, 429, 715, 1430, 24310, 12155, 92378, 46189, 88179, 88179, 1352078, 676039, 52003, 52003, 7429, 7429, 1077205, 1077205, 33393355, 66786710, 43214930, 21607465, 181502706, 90751353, 176726319, 17...
[ "nonn" ]
A283263
[ 1, -1, -4, -5, -1, 21, 49, 81, 45, -121, -484, -997, -1344, -840, 1624, 6931, 15149, 23155, 23469, 2240, -57596, -168929, -322587, -461165, -450668, -64135, 985621, 2935044, 5718865, 8597971, 9683008, 5596899, -8414092, -37295629, -83336988, -141...
[ "sign" ]
A279494
[ 0, 1, 1, 0, 0, 0, 3, 5, 5, 3, 3, 18, 38, 18, 3, 9, 68, 254, 254, 68, 9, 15, 235, 1433, 2684, 1433, 235, 15, 31, 801, 8330, 26157, 26157, 8330, 801, 31, 57, 2678, 46095, 246237, 425588, 246237, 46095, 2678, 57, 108, 8777, 2...
[ "nonn", "tabl" ]
A028758
[ 2, 3, 5, 6, 7, 8, 11, 12, 13, 14, 15, 17, 18, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 32, 33, 35, 37, 38, 39, 41, 42, 43, 44 ]
[ "nonn", "fini", "full" ]
A253744
[ 1998, 10182, 77414, 382973, 1636717, 5648005, 17980643, 52078415, 140931619, 357840627, 868453186, 2023764359, 4558420081, 9965846712, 21261754665, 44410393873, 91091870910, 183925891758, 366444204565, 721742419593 ]
[ "nonn" ]
A036663
[ 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 2, 0, 2, 0, 3, 0, 4, 0, 4, 0, 4, 0, 5, 0, 6, 0, 6, 0, 6, 0, 7, 0, 8, 0, 8, 0, 8, 0, 9, 1, 0, 1, 0, 1, 0, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 4, 1, 4, 1, 4, 1, 5...
[ "nonn", "cons" ]
A322796
[ 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, -...
[ "sign", "easy", "mult" ]
A241462
[ 0, 0, 0, 0, 0, 0, 2, 6, 29, 199 ]
[ "nonn", "more" ]
A176428
[ 1, 1, 1, 1, 4, 1, 1, 15, 15, 1, 1, 54, 194, 54, 1, 1, 185, 2118, 2118, 185, 1, 1, 608, 20831, 65344, 20831, 608, 1, 1, 1939, 194633, 1835923, 1835923, 194633, 1939, 1, 1, 6058, 1777912, 50102326, 151670254, 50102326, 1777912, 6058...
[ "nonn", "tabl", "uned" ]
A158036
[ 3, 8287, 32547981403, 3.3740749148393976e+45, 1.0754787262630593e+74, 4.5683668608756345e+102 ]
[ "nonn" ]
A293193
[ 1, 1, 4, 33, 384, 5745, 105120, 2273985, 56770560, 1606455585, 50810457600, 1776342038625, 68018227200000, 2831056111508625, 127263741276672000, 6144722994699914000, 317153340121153540000, 1.742581317991185e+22, 1.0154875744908366e+24, 6.255944610707784e+25 ]
[ "nonn" ]
A322505
[ 0, 1, 1, 0, 4, 5, 0, 6, 4, 9, 0, 11, 7, 3, 11, 10, 2, 2, 5, 16, 11, 3, 7, 18, 16, 19, 11, 12, 21, 19, 22, 5, 31, 21, 25, 30, 20, 6, 5, 21, 17, 41, 36, 14, 28, 13, 45, 16, 0, 33, 1, 2, 41, 1, 28, 43, 9, ...
[ "nonn" ]
A292694
[ 1, 2, 24, 764, 47650, 4953222, 776036520, 171140340632, 50569280587134, 19291547098210250, 9231053150452095000, 5.414004448824368e+21, 3.819333773584571e+24, 3.190486349393577e+27, 3.1144807871390443e+30, 3.512892958123524e+33 ]
[ "nonn" ]
A119106
[ 1, 6, 18, 58, 66, 381, 493, 666, 1193, 6666, 12018, 66666, 156058, 379941, 585281, 666666, 6666666, 15603058, 66666666, 210319381, 666666666, 4933998806, 6666666666, 66666666666, 185864319933, 666666666666, 6666666666666 ]
[ "nonn", "base" ]
A167253
[ 1, 9, 132, 1787, 22889, 264500 ]
[ "nonn" ]
A169411
[ 1, 14, 182, 2366, 30758, 399854, 5198102, 67575326, 878479238, 11420230094, 148462991222, 1930018885886, 25090245516518, 326173191714734, 4240251492291542, 55123269399790050, 716602502197270700 ]
[ "nonn" ]
A019889
[ 9, 8, 4, 8, 0, 7, 7, 5, 3, 0, 1, 2, 2, 0, 8, 0, 5, 9, 3, 6, 6, 7, 4, 3, 0, 2, 4, 5, 8, 9, 5, 2, 3, 0, 1, 3, 6, 7, 0, 6, 4, 3, 2, 5, 1, 7, 1, 9, 8, 4, 2, 4, 1, 8, 7, 9, 0, 0, 2, 5, 7, 5, 2, 3...
[ "nonn", "cons" ]
A069661
[ 7, 89, 997, 8999, 98999, 989999, 9899999, 89999999, 998999999, 9899989999, 98999999999, 999998999999, 8998999999999, 99899999999999, 999999899999999, 9999000000000000, 99999999999900000, 999999000000000000, 9999000000000000000, 90000000000000000000 ]
[ "nonn", "base" ]
A051787
[ 0, 2, 8, 18, 32, 51, 73, 101, 132, 169, 209, 254, 304, 358, 416, 479, 546, 618 ]
[ "nonn", "more" ]
A109184
[ 929, 16661, 17471, 36263, 70607, 72227, 73037, 91019, 1074701, 1082801, 1180811, 1262621, 1328231, 1360631, 1508051, 1532351, 1630361, 1712171, 1802081, 3160613, 3218123, 7014107, 7300037, 9002009, 102383201, 102707201, 103282301 ]
[ "base", "nonn" ]
A342533
[ 1, 2, 4, 11, 24, 81, 193, 772, 1920, 8735, 23040 ]
[ "nonn", "more" ]
A203026
[ 12, 28, 120, 356, 1472, 4780, 20228, 68724, 296256, 1034008, 4501388, 15995228, 69888012, 251506724, 1098929960, 3991711796, 17408141792, 63681484600, 276945484748, 1018750420536, 4416760710356, 16320495059248, 70538020856288 ]
[ "nonn" ]
A224825
[ 1, 1, 0, 3, 2, 0, 4, 1, 0, 5, 3, 0, 5, 4, 0, 5, 1, 0, 7, 5, 0, 7, 4, 0, 9, 0, 0, 7, 6, 0, 6, 6, 0, 11, 3, 0, 8, 5, 0, 10, 6, 0, 8, 2, 0, 9, 6, 0, 14, 8, 0, 10, 0, 0, 15, 7, 0, 7, 8, 0, 7, 4, 0...
[ "nonn" ]
A310680
[ 1, 4, 7, 10, 13, 16, 19, 22, 29, 33, 33, 36, 39, 42, 45, 48, 58, 62, 59, 62, 65, 68, 71, 74, 87, 91, 85, 88, 91, 94, 97, 100, 116, 120, 111, 114, 117, 120, 123, 126, 145, 149, 137, 140, 143, 146, 149, 152, 174, 178 ]
[ "nonn" ]
A208517
[ 1, 1, 3, 1, 3, 7, 1, 3, 8, 17, 1, 3, 9, 22, 41, 1, 3, 10, 27, 59, 99, 1, 3, 11, 32, 78, 157, 239, 1, 3, 12, 37, 98, 222, 414, 577, 1, 3, 13, 42, 119, 294, 622, 1084, 1393, 1, 3, 14, 47, 141, 373, 864, 1722, 282...
[ "nonn", "tabl" ]
A367234
[ 1, 1, 6, 35, 226, 1561, 11276, 84150, 643730, 5021038, 39781858, 319282210, 2590312872, 21208628405, 175024439504, 1454329099044, 12157356271998, 102170610282040, 862721635191860, 7315768816166027, 62274763166575410, 531950072655682900, 4558282056420236000 ]
[ "nonn" ]
A121347
[ 2, 4, 5, 7, 9, 10, 12, 14, 15, 17, 19, 20, 22, 24, 26, 27, 29, 31, 32, 34, 36, 38, 39, 41, 43, 44, 46, 48, 50, 51, 53, 55, 57, 58, 60, 62, 64, 65, 67, 69, 71, 72, 74, 76, 78, 79, 81, 83, 85, 87, 88, 90, 92, 94,...
[ "nonn" ]
A365022
[ 2465, 62745, 512461, 656601, 658801, 838201, 1033669, 2100901, 4903921, 5968873, 6049681, 8341201, 8719309, 9439201, 9582145, 9585541, 11119105, 11921001, 12261061, 15829633, 17236801, 26921089, 35571601, 36121345, 38624041, 41341321, 43286881, 43584481, 45877...
[ "nonn" ]
A260954
[ 28, 43, 127, 262, 549 ]
[ "nonn", "more", "hard", "fini" ]
A153033
[ 3, 6, 7, 11, 13, 14, 15, 22, 23, 26, 27, 29, 30, 31, 43, 45, 46, 47, 53, 54, 55, 58, 59, 61, 62, 63, 86, 87, 90, 91, 93, 94, 95, 106, 107, 109, 110, 111, 117, 118, 119, 122, 123, 125, 126, 127, 171, 173, 174, 175, 18...
[ "base", "easy", "nonn" ]
A249476
[ 1, 1, 6, 35, 242, 1773, 15056, 136652, 1393722, 15257919, 183206388, 2347929936, 32602306542, 479885400177, 7563888117504, 125952344438838, 2225653414414386, 41351620513521624, 810520833521436700, 16633643598838880000, 358221783030360400000, 8.05192748326703e+21 ]
[ "nonn" ]
A208155
[ 15, 49, 91, 133, 217, 259, 301, 427, 469, 511, 553, 679, 721, 763, 889, 973, 1015, 1057, 1099, 1141, 1267, 1351, 1393, 1477, 1561, 1603, 1687, 1897, 1939, 1981, 2107, 2149, 2191, 2317, 2359, 2443, 2569, 2611, 2653, 2779, 2863, 2947, ...
[ "nonn" ]
A048635
[ 0, 14, 24, 14, 0, 38, 168, 350, 528, 854, 1848, 4238, 8736, 16646, 31944, 64190, 131376, 265142, 526680, 1044974, 2088768, 4193126, 8404200, 16795166, 33541200, 67059734, 134195064, 268511054, 536991840, 1073711558, 2147211528 ]
[ "nonn" ]