id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A140647
[ 1, 10, 107, 1346, 19917, 341986, 6713975, 148717762, 3674435393, 100284451730, 2998366140915, 97510068994690, 3428106725444117, 129590070259759040, 5242767731544271000, 226057515078414500000, 1.0350122253780836e+22, 5.0154398479343106e+23 ]
[ "nonn" ]
A246340
[ 1, 3, 1, 4, 4, 1, 6, 6, 4, 1, 8, 8, 6, 42, 1, 14, 14, 42, 66, 66, 1, 17, 20, 66, 72, 78, 136, 1, 18, 24, 72, 78, 89, 195, 195, 1, 19, 28, 78, 89, 136, 370, 437, 775, 1, 20, 37, 89, 96, 144, 437, 504, 782, 775, ...
[ "nonn", "easy", "tabl" ]
A113125
[ 1, 1, 2, 1, 2, 3, 0, 2, 3, 4, 0, 0, 3, 4, 5, 0, 0, 0, 4, 5, 6, 0, 0, 0, 0, 5, 6, 7, 0, 0, 0, 0, 0, 6, 7, 8, 0, 0, 0, 0, 0, 0, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 8, 9, 10, 0, 0, 0, 0, 0, 0, 0, 0, ...
[ "easy", "nonn", "tabl" ]
A305784
[ 1, 10, 75, 495, 3135, 19657, 120678, 743321, 4480240, 27176489, 161160411, 964119615, 5635200174, 33302382467, 192186538999, 1123752073702, 6413666231367, 37159362571856, 210072026510678, 1207564204033112, 6771732706003311, 38664907592673960, 215359228721632000 ]
[ "nonn" ]
A049971
[ 1, 3, 2, 9, 24, 42, 90, 213, 597, 984, 1974, 3981, 8133, 17037, 37071, 87198, 244557, 401919, 803844, 1607721, 3215613, 6431997, 12866991, 25747038, 51564237, 103443195, 208092192, 421008660, 861332361, 1800360879, 3918287223, 9215926665, 25847419116, ...
[ "nonn", "easy" ]
A304315
[ 1, 961, 6737401, 172342090401, 11657788116175752, 1.722786509653595e+21, 4.895060339770611e+26, 2.4396897943794266e+32, 1.9902559365412322e+38, 2.5177443971690564e+44, 4.72942802381336e+50, 1.273071332950626e+57 ]
[ "nonn" ]
A228734
[ 3, 9, 27, 77, 185, 447, 1071, 2593, 6333, 15513, 38039, 93213, 228279, 558849, 1367945, 3348489, 8196847, 20065943, 49122291, 120253773, 294386457, 720668887, 1764221329, 4318870217, 10572732933, 25882394413, 63360952825, 155109705901 ]
[ "nonn" ]
A083891
[ 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 2, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 2, 1, 2, 1, 2, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 1...
[ "nonn", "base" ]
A276673
[ 1, 2, 3, 4, 8, 19, 23, 25, 28, 65, 171, 183, 187, 295, 351, 471, 561, 634, 710, 1726, 3947, 4247, 6009, 11065, 13567, 94493, 147871, 182291 ]
[ "nonn", "more" ]
A047025
[ 1, 3, 7, 19, 37, 99, 586, 1144, 5452, 22610, 112227, 482885, 1978069, 8394471, 34646088, 140372604, 572795825, 2320299903, 9330259482, 37549205868, 150740987631, 603268047310, 2413279250137, 9643525728588, 38481447864172 ]
[ "nonn" ]
A119415
[ 45, 45, 11, 11, 45, 45, 45, 45, 30, 30, 45, 45, 45, 45, 59, 59, 59, 59, 59, 59, 63, 63, 63, 63, 63, 63, 105, 105, 91, 91, 91, 91, 91, 91, 102, 102, 102, 102, 117, 117, 127, 127, 127, 127, 136, 136, 136, 136, 136, 136, ...
[ "nonn" ]
A065786
[ 7, 43, 1293, 154957, 20214998707, 118659019449999850000, 5.566692951015284e+39, 2.1637689578064053e+79 ]
[ "base", "nonn" ]
A198992
[ 7, 7, 8, 4, 5, 8, 8, 9, 9, 8, 1, 9, 6, 9, 4, 6, 8, 0, 4, 5, 3, 2, 2, 4, 8, 6, 5, 8, 4, 0, 5, 8, 9, 2, 7, 5, 2, 6, 5, 8, 4, 1, 2, 6, 2, 9, 3, 0, 8, 3, 3, 6, 3, 2, 4, 3, 8, 4, 7, 7, 2, 4, 6, 9...
[ "nonn", "cons" ]
A252141
[ 1921, 3026, 5090, 8132, 14578, 24855, 44707, 79081, 140896, 248042, 450225, 808657, 1449166, 2601931, 4715098, 8501478, 15355964, 27807534, 50383383, 91201345, 165535742, 300252624, 544823562, 989531463, 1797603881, 3264756294 ]
[ "nonn" ]
A019476
[ 2, 10, 51, 261, 1336, 6839, 35009, 179212, 917391, 4696149, 24039712, 123059927, 629947049, 3224715748, 16507405935, 84501851325, 432567231064, 2214323194775, 11335179502289, 58025086244092 ]
[ "nonn" ]
A084384
[ 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 43, 46, 47, 48, 49, 51, 53, 55, 57, 58, 59, 61, 62, 65, 67, 69, 71, 72, 73, 74, 77, 79, 80, ...
[ "nonn" ]
A250562
[ 14, 83, 302, 761, 1648, 3125, 5446, 8843, 13662, 20173, 28836, 39973, 54102, 71647, 93210, 119221, 150416, 187305, 230650, 281051, 339378, 406245, 482652, 569257, 667098, 776983, 900018, 1036969, 1189124, 1357341, 1542894, 1746747, 1970290 ]
[ "nonn" ]
A222177
[ 0, 1, 2, 2, 2, 4, 6, 4, 2, 4, 8, 8, 6, 10, 14, 8, 2, 4, 8, 12, 16 ]
[ "nonn", "tabf", "more" ]
A017933
[ 1, 18, 225, 2430, 24381, 234738, 2205225, 20404710, 186995061, 1703091258, 15448694625, 139763668590, 1262226050541, 11386154248578, 102632111782425, 924629361662070, 8327306431726821, 74979611075290700 ]
[ "nonn", "easy" ]
A093872
[ 0, 4, 9, 0, 6, 0, 10, 15, 14, 21, 121, 35, 22, 33, 26, 39, 210, 65, 34, 51, 38, 57, 273, 95, 46, 69, 285, 115, 399, 161, 58, 87, 62, 93, 741, 155, 435, 217, 74, 111, 651, 185, 82, 123, 86, 129, 777, 215, 94, 141, 645...
[ "nonn" ]
A087439
[ 1, 5, 22, 98, 451, 2135, 10312, 50468, 249061, 1235465, 6147802, 30650438, 152986471, 764135195, 3818284492, 19084248008, 95399716681, 476934013325, 2384476356382, 11921800651178, 59607259863691, 298031069141855 ]
[ "easy", "nonn" ]
A018003
[ 1, 2, 4, 10, 21, 46, 100, 215, 464, 1000, 2154, 4641, 10000, 21544, 46415, 100000, 215443, 464158, 1000000, 2154434, 4641588, 10000000, 21544346, 46415888, 100000000, 215443469, 464158883, 1000000000, 2154434690, 4641588833, 10000000000, 21544346900 ]
[ "nonn" ]
A375800
[ 3, 24, 348, 7812, 255756, 11747504, 714121392 ]
[ "nonn", "more" ]
A299119
[ 1, 2, 6, 14, 40, 84, 224, 484, 1134, 2480, 5632, 12036, 26624, 56896, 122640, 261078, 557056, 1176876, 2490368, 5237360, 11008704, 23057408, 48234496, 100635144, 209714400, 436154368, 905962860, 1878931264, 3892314112, 8052800160, 16642998272, 3435920943...
[ "nonn" ]
A026737
[ 1, 2, 6, 21, 79, 309, 1237, 5026, 20626, 85242, 354080, 1476368, 6173634, 25873744, 108628550, 456710589, 1922354351, 8098984433, 34147706833, 144068881455, 608151037123, 2568318694867, 10850577045131, 45856273670841 ]
[ "nonn" ]
A342466
[ 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 3, 1, 11, 1, 1, 1, 11, 5, 1, 1, 5, 1, 1, 1, 1, 7, 23, 1, 1, 3, 1, 1, 1, 1, 11, 1, 5, 1, 1, 3,...
[ "nonn" ]
A120967
[ 1, 2, 2, 1, 3, 1, 1, 2, 2, 1, 1, 1, 3, 1, 1, 2, 2, 3, 3, 1, 1, 2, 2, 1, 3, 1, 1, 1, 2, 1, 1, 3, 2, 2, 3, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 1, 2, 1, 1, 1, 3, 1, 1, 3, 2, 1, 1, 1, 3, 1, 1, 2, 2, 2...
[ "nonn" ]
A019283
[ 42, 84, 160, 336, 1344, 86016, 550095, 1376256, 5505024, 22548578304 ]
[ "nonn", "more" ]
A345455
[ 1, 7, 474, 12393, 427351, 13333932, 430470899, 13733091643, 439924466026, 14072420067757, 450374698997499, 14411355379952868, 461170414282959170, 14757375158697585000, 472236871202375340000, 1.5111570273013076e+22, 4.835703552626348e+23 ]
[ "nonn" ]
A257698
[ 0, 1, 3, 2, 6, 3, 5, 7, 13, 4, 6, 8, 12, 14, 16, 5, 13, 9, 11, 13, 17, 15, 17, 6, 12, 14, 16, 10, 14, 14, 16, 18, 28, 16, 18, 7, 11, 13, 15, 15, 21, 11, 13, 15, 19, 15, 17, 19, 27, 29, 31, 17, 21, 8, 10, 12...
[ "nonn", "easy" ]
A028921
[ 1, 4, 12, 32, 64, 128, 192, 256, 256, 512, 768, 1024, 1024, 1024, 768, 512, 256, 256, 192, 128, 64, 32, 12, 4, 1, 2, 3, 4, 4, 4, 3, 2, 1, 1 ]
[ "nonn" ]
A360943
[ 0, 0, 0, 0, 0, 0, 360, 0, 360, 360, 8547192, 0 ]
[ "nonn", "more" ]
A146691
[ 1, 1, 1, 1, 1, 1, 19, 31, 599, 1163, 13781, 34743, 686711, 2032193, 168115995, 630196685, 103169062863, 486468362253, 96427000262963, 558209750316079, 186248241738031500 ]
[ "nonn" ]
A300644
[ 0, 19, 104, 1789, 28089, 456649, 7455411, 121708555, 1990954802, 32547397369, 532327808168, 8705226732028, 142365129531729, 2328217142648763, 38075317550124090, 622678903591246500, 10183203860875000000 ]
[ "nonn" ]
A233621
[ 10864544, 1955165211, 345855899520, 61016076689221, 10751985514076080, 1894224161834632700, 333687213953551040000, 5.878140984377592e+22, 1.0354713897441855e+25, 1.8240454676381977e+27 ]
[ "nonn" ]
A360177
[ 1, 0, 1, 0, 3, 1, 0, 16, 9, 1, 0, 125, 91, 18, 1, 0, 1296, 1105, 295, 30, 1, 0, 16807, 15961, 5160, 725, 45, 1, 0, 262144, 269297, 99631, 17290, 1505, 63, 1, 0, 4782969, 5217031, 2135070, 431221, 46970, 2786, 84, 1, 0, 10000...
[ "nonn", "tabl" ]
A291121
[ 1, 1, 14, 596, 51570, 7499467, 1643722873, 505862470010, 207976214329922, 110082566480231860, 72903763226014970000, 5.905285911247431e+22, 5.7431375668375875e+25, 6.603776162935856e+28, 8.861937612654347e+31 ]
[ "nonn" ]
A320906
[ 0, 0, 1, 0, 1, 6, 0, 1, 8, 24, 0, 1, 10, 39, 80, 0, 1, 12, 58, 150, 240, 0, 1, 14, 81, 256, 501, 672, 0, 1, 16, 108, 406, 955, 1524, 1792, 0, 1, 18, 139, 608, 1686, 3178, 4339, 4608, 0, 1, 20, 174, 870, 2794, 6144,...
[ "nonn", "tabl" ]
A384194
[ 1, 259, 1545, 6939, 27729, 5619, 13529, 30603, 29089, 30179, 17577, 30459, 24561, 4307, 1401, 2411, 1857, 22211, 18249, 7899, 14225, 14259, 23065, 10059, 16609, 9123, 3561, 4795, 29489, 2707, 12985, 20779, 7809, 23683, 6281, 21147, 4817, 2419...
[ "nonn", "easy" ]
A366570
[ 1, 1, 1, 2, 1, 6, 1, 6, 1, 10, 1, 6, 1, 210, 5, 2, 1, 30, 5, 210, 7, 110, 5, 30, 1, 546, 7, 14, 1, 30, 1, 462, 77, 1190, 35, 6, 1, 51870, 455, 70, 7, 2310, 55, 2310, 7, 322, 35, 210, 1, 6630, 221, 286, 11, 330,...
[ "nonn", "frac" ]
A036441
[ 2, 4, 6, 9, 12, 15, 20, 25, 30, 35, 42, 49, 56, 63, 70, 77, 88, 99, 110, 121, 132, 143, 156, 169, 182, 195, 208, 221, 238, 255, 272, 289, 306, 323, 342, 361, 380, 399, 418, 437, 460, 483, 506, 529, 552, 575, 598, 621, 64...
[ "eigen", "nice", "nonn" ]
A024405
[ 1, 1, 2, 2, 2, 4, 5, 7, 13, 19, 36, 56, 102, 193, 350, 642, 1131, 2191, 3975, 7480, 14540, 27004, 51067, 95327, 174777, 335535, 658017, 1266162, 2485494, 4793475, 8521778, 16519017, 31580551, 62245705, 116080359, 229064578, 440510030, 8483884...
[ "nonn" ]
A310955
[ 1, 4, 7, 9, 12, 16, 21, 27, 28, 28, 33, 39, 48, 50, 46, 46, 54, 63, 74, 69, 69, 68, 77, 90, 95, 89, 85, 91, 102, 115, 115, 112, 104, 112, 128, 137, 135, 126, 131, 137, 153, 155, 154, 146, 151, 165, 176, 176, 172, 174 ]
[ "nonn" ]
A059074
[ 1, 0, 1, 346, 748521, 3993445276, 45131501617225, 964363228180815400, 3.57803559732709e+22, 2.158610844939712e+27, 2.01028342764878e+32, 2.770889375323876e+37, 5.4598442858031535e+42 ]
[ "nonn", "nice" ]
A004183
[ 0, 1, 2, 3, 4, 5, 6, 7, 0, 9, 10, 11, 12, 13, 14, 15, 16, 17, 1, 19, 20, 21, 22, 23, 24, 25, 26, 27, 2, 29, 30, 31, 32, 33, 34, 35, 36, 37, 3, 39, 40, 41, 42, 43, 44, 45, 46, 47, 4, 49, 50, 51, 52, 53, 54, ...
[ "nonn", "base" ]
A274220
[ 3, -4, 10, -25, 66, -179, 493, -1369, 3818, -10672, 29865, -83626, 234237, -656205, 1838483, -5151080, 14432666, -40438941, 113306686, -317477255, 889550021, -2492461633, 6983719214, -19567941936, 54828148469, -153625048854, 430447808073, -1206087937261, 33793...
[ "sign", "easy" ]
A036859
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 4, 0, 1, 0, 0, 10, 0, 4, 0, 2, 21, 0, 12, 0, 8, 40, 2, 29, 0, 26, 75, 8, 63, 3, 68, 140, 26, 127, 12, 161, 268, 70, 246, 40, 346, 513, 171, 467, 111, ...
[ "nonn", "changed" ]
A009872
[ 1, 4, 10, 19, 32, 51, 74, 101, 130, 164, 203, 242, 292, 345, 394, 455, 519, 578, 648, 727, 808, 893, 978, 1059, 1151, 1267, 1371, 1463, 1570, 1684, 1810, 1943, 2071, 2188, 2312, 2463, 2614, 2760, 2904, 3048, 3218, 3388, 3552, 3717...
[ "nonn" ]
A205307
[ 40, 31168, 19490790, 13049279920, 8615950028840, 5705396521337690, 3775750320744044000, 2.4990575714501006e+21, 1.654008038632602e+24, 1.0947158565851242e+27, 7.245438772521683e+29, 4.795435785782382e+32, 3.1738868977767983e+35 ]
[ "nonn" ]
A121304
[ 1, 1, 2, 5, 5, 14, 17, 32, 53, 76, 139, 198, 334, 515, 798, 1280, 1938, 3075, 4710, 7299, 11298, 17296, 26738, 40874, 62763, 96036, 146674, 224210, 341562, 520767, 792375, 1204951, 1831124, 2779234, 4217008, 6391663, 9683056, 14659038, 2217...
[ "nonn" ]
A054008
[ 0, 0, 1, 1, 1, 2, 1, 0, 0, 2, 1, 0, 1, 2, 3, 1, 1, 0, 1, 2, 1, 2, 1, 0, 1, 2, 3, 4, 1, 6, 1, 2, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 1, 2, 3, 2, 1, 8, 1, 2, 3, 4, 1, 6, 3, 0, 1, 2, 1, 0, 1, 2, 3, 1...
[ "nonn" ]
A129662
[ 0, 1, 7, 23, 1471, 94145, 327200947, 6435419387591, 3576528877557150700, 5.2838543219192816e+26, 9.887448303004155e+31, 1.0562012362311243e+42 ]
[ "nonn", "frac", "easy" ]
A200461
[ 34, 18692, 548204, 5876818, 36725772, 163058296, 572857272, 1697721154, 4418429664, 10383073842, 22471124198, 45437973772, 86792210440, 157952348940, 275717978586, 464147942094, 756885155284, 1199972729134, 1855294240358 ]
[ "nonn" ]
A173368
[ 19, 95, 184, 238, 1938094, 635896450 ]
[ "nonn", "more", "hard" ]
A365334
[ 1, 1, 1, 3, 1, 1, 1, 3, 4, 1, 1, 3, 1, 1, 1, 11, 1, 4, 1, 3, 1, 1, 1, 3, 6, 1, 4, 3, 1, 1, 1, 11, 1, 1, 1, 12, 1, 1, 1, 3, 1, 1, 1, 3, 4, 1, 1, 11, 8, 6, 1, 3, 1, 4, 1, 3, 1, 1, 1, 3, 1, 1, 4,...
[ "nonn", "easy", "mult" ]
A161047
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4, 5, 4, 5, 6, 6, 6, 7, 6, 7, 9, 7, 8, 9, 8...
[ "nonn" ]
A065974
[ 0, 0, 0, 1, 3, 5, 3, 43, 23, 605, 311, 2591, 437, 115, 289, 2375101, 1190281, 50489, 14039, 132227, 727577, 1267159, 3168533, 682014587, 113679229, 62065051, 155168773, 1270865805301, 635444087461, 1434247999, 1769737, 43127143823 ]
[ "nonn", "frac" ]
A190322
[ 1, 9, 17, 3, 11, 19, 5, 13, 21, 7, 15, 23, 9, 17, 25, 11, 19, 27, 13, 21, 29, 15, 23, 31, 17, 25, 33, 19, 27, 35, 21, 29, 37, 23, 31, 39, 25, 33, 41, 27, 35, 43, 29, 37, 45, 31, 39, 47, 33, 41, 49, 35, 43, 51, ...
[ "nonn", "easy" ]
A348873
[ 1, 4, 2, 7, 22, 11, 34, 17, 52, 13, 40, 5, 16, 8, 25, 76, 19, 58, 29, 88, 44, 133, 400, 10, 31, 94, 47, 142, 71, 214, 107, 322, 14, 43, 130, 26, 79, 238, 119, 358, 179, 538, 269, 808, 101, 304, 38, 115, 23, 70, 35, ...
[ "base", "nonn" ]
A160911
[ 1, 1, 2, 5, 11, 29, 84, 267, 921, 3481, 14322, 62306, 285845, 1362662, 6681508, 33483830 ]
[ "nonn", "more" ]
A311008
[ 1, 4, 8, 10, 18, 18, 24, 28, 30, 36, 40, 46, 44, 52, 58, 56, 68, 66, 64, 84, 76, 86, 88, 86, 98, 98, 110, 100, 110, 122, 110, 136, 122, 122, 146, 134, 146, 148, 144, 160, 158, 172, 156, 168, 186, 166, 200, 180, 176, 21...
[ "nonn" ]
A293434
[ 0, 1, 1, 1, 1, 4, 1, 1, 4, 6, 1, 4, 1, 1, 9, 1, 1, 4, 1, 6, 4, 12, 1, 4, 6, 1, 4, 1, 1, 9, 1, 1, 15, 1, 6, 4, 1, 1, 4, 6, 1, 25, 1, 12, 9, 1, 1, 4, 1, 6, 4, 1, 1, 4, 17, 1, 4, 1, 1, 9, 1, 1, 2...
[ "nonn" ]
A050472
[ 2, 4, 16, 154, 256, 286, 364, 804, 1066, 2146, 3382, 4550, 6106, 7700, 8176, 9268, 11284, 12556, 12970, 16402, 19228, 19276, 20272, 25132, 26404, 27346, 29154, 29574, 35644, 36418, 38368, 39646, 40494, 47214, 52234, 54652, 65536, 84862 ]
[ "nonn" ]
A211138
[ 3, 5, 7, 9, 11, 19, 33, 45, 75, 385, 1425 ]
[ "nonn", "fini", "full" ]
A349109
[ 1, 64, 243, 441, 1764, 9800, 15552, 28224, 41616, 60516, 82369, 88200, 189728, 226576, 329476, 336200, 648675, 741321, 968256, 1317904, 1428025, 1707552, 1943236, 2039184, 2056356, 2381400, 2446227, 2798929, 2965284, 2986568, 4372281, 5189400, 5271616,...
[ "nonn" ]
A079335
[ 2, 6, 7, 9, 11, 12, 13, 16, 19, 20, 21, 22, 24, 25, 31, 33, 38, 39, 40, 42, 45, 47, 48, 50, 51, 52, 53, 54, 58, 66, 67, 71, 72, 73, 74, 75, 76, 78, 80, 83, 84, 87, 89, 91, 93, 94, 97, 98, 100, 101, 103, 107, 109,...
[ "nonn" ]
A183847
[ 107, 429, 1766, 7453, 31767, 136894, 591211, 2568541, 11149598, 48599949, 211414495, 922928662, 4019038203, 17560067093, 76517548422, 334524327261, 1458399643111, 6379140858958, 27822538200459, 121753363003213 ]
[ "nonn" ]
A305434
[ 1, 2, 2, 2, 3, 2, 4, 5, 2, 6, 3, 5, 2, 6, 2, 3, 3, 2, 6, 6, 2, 3, 3, 2, 6, 7, 2, 3, 8, 6, 2, 2, 3, 3, 9, 2, 2, 10, 3, 11, 6, 2, 12, 7, 3, 3, 9, 3, 3, 9, 2, 13, 3, 2, 6, 14, 3, 9, 2, 3, 6, 3, 6...
[ "nonn" ]
A199210
[ 4, 15, 59, 235, 939, 3755, 15019, 60075, 240299, 961195, 3844779, 15379115, 61516459, 246065835, 984263339, 3937053355, 15748213419, 62992853675, 251971414699, 1007885658795, 4031542635179, 16126170540715, 64504682162859 ]
[ "nonn", "easy" ]
A051882
[ 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 33, 34, 35, 36, 39, 40, 41, 42, 44, 46, 47, 48, 49, 51, 56, 58, 63, 68, 70, 72, 77 ]
[ "nonn", "fini", "full", "nice" ]
A076504
[ 12, 60, 1320, 1620, 4260, 5100, 6660, 6780, 11700, 12540, 21060, 66360, 83220, 88260, 107100, 110880, 114660, 127680, 130200, 140760, 141960, 144540, 148200, 149520, 157560, 161340, 163860, 175080, 186480, 204600, 230940, 249540 ]
[ "nonn" ]
A250230
[ 8, 27, 52, 89, 132, 187, 248, 321, 400, 491, 588, 697, 812, 939, 1072, 1217, 1368, 1531, 1700, 1881, 2068, 2267, 2472, 2689, 2912, 3147, 3388, 3641, 3900, 4171, 4448, 4737, 5032, 5339, 5652, 5977, 6308, 6651, 7000, 7361, 7728, 8107, ...
[ "nonn" ]
A161799
[ 1, 3, 12, 61, 345, 2085, 13182, 86106, 576543, 3936029, 27294390, 191722887, 1361291244, 9754412169, 70447946556, 512278417176, 3747570671685, 27561220671408, 203657352324178, 1511270129552163, 11257532921742528 ]
[ "nonn" ]
A179999
[ 1, 2, 2, 4, 6, 8, 10, 14, 18, 24, 30, 40, 50, 66, 82, 108, 134, 176, 218, 286, 354, 464, 574, 752, 930, 1218, 1506, 1972, 2438, 3192, 3946, 5166, 6386, 8360, 10334, 13528, 16722, 21890, 27058, 35420, 43782, 57312, 70842, 92734, ...
[ "nonn", "base", "easy" ]
A237719
[ 1, 2, 6, 12, 18, 20, 24, 28, 30, 40, 42, 54, 56, 66, 70, 78, 80, 88, 100, 102, 104, 112, 114, 120, 126, 138, 140, 150, 160, 162, 174, 176, 180, 186, 196, 198, 200, 204, 208, 220, 222, 224, 228, 234, 240, 246, 258, 260, 2...
[ "nonn" ]
A082201
[ 1, 9, 8, 77, 10, 91, 18, 95, 26, 51, 28, 75, 58, 175, 72, 365, 84, 515, 114, 385, 158, 255, 154, 339, 70, 1261, 198, 1105, 252, 1265, 288, 1435, 344, 567, 320, 729, 364, 1955, 378, 2165, 506, 987, 520, 3127, 462, 2825, 588, ...
[ "nonn" ]
A187896
[ 3, 6, 11, 15, 19, 22, 26, 29, 34, 36, 39, 44, 48, 51, 56, 58, 64, 67, 69, 75, 77, 83, 85, 88, 92, 96, 101, 104, 110, 112, 115, 119, 124, 127, 129, 134, 137, 142, 146, 149, 151, 157, 161, 165, 167, 170, 174, 179, 182, 1...
[ "nonn" ]
A234751
[ 2, 1, 3, 5, 4, 6, 8, 7, 12, 14, 13, 9, 11, 10, 17, 18, 15, 16, 20, 19, 21, 23, 22, 41, 39, 40, 38, 37, 34, 33, 35, 36, 30, 29, 31, 32, 28, 27, 25, 26, 24, 43, 42, 47, 46, 45, 44, 49, 48, 51, 50, 52, 54, 53, 5...
[ "nonn", "look" ]
A379102
[ 1, 1, 1, 1, 3, 6, 18, 52, 114, 367, 1777, 5249, 21107, 84746, 432769, 10399350 ]
[ "nonn", "more" ]
A096847
[ 3, 4, 8, 36, 100, 128, 324, 400, 1296, 1600, 1936, 2116, 3364, 4356, 10404, 11236, 20736, 22500, 26244, 27556, 28900, 30976, 38416, 40000, 52900, 53824, 57600, 60516, 88804, 93636, 107584, 108900, 115600, 123904, 125316, 129600, 211600, 21529...
[ "nonn" ]
A322500
[ 1, 1, 21, 257, 2989, 34468, 396500, 4577274, 52338705, 600923375, 6897569624, 79170705722, 908721438900, 10430285080567, 119719520002653, 1374133015203548, 15772280213569812, 181033948036338270, 2077904397828614100, 23850149155575312000, 273751580233289200000 ]
[ "nonn" ]
A049921
[ 1, 3, 2, 3, 8, 14, 29, 57, 116, 176, 380, 775, 1556, 3117, 6235, 12469, 24940, 37412, 81058, 165234, 332029, 664839, 1330073, 2660350, 5320760, 10641579, 21283186, 42566387, 85132780, 170265565, 340531131, 681062261, 1362124524 ]
[ "nonn" ]
A317795
[ 1, 0, 1, 6, 172, 611852, 200253853704512, 2.637357160288264e+32, 5.60903830088376e+69 ]
[ "nonn" ]
A341197
[ 1, 1, 8, 117, 2800, 97125, 4551876, 274975897, 20690260928, 1889451727497, 205192914235300, 26068434774065540, 3822244304373085700, 639508508456359000000, 1.2092235882957458e+23, 2.5626415609908104e+25 ]
[ "nonn" ]
A028557
[ 0, 6, 14, 24, 36, 50, 66, 84, 104, 126, 150, 176, 204, 234, 266, 300, 336, 374, 414, 456, 500, 546, 594, 644, 696, 750, 806, 864, 924, 986, 1050, 1116, 1184, 1254, 1326, 1400, 1476, 1554, 1634, 1716, 1800, 1886, 1974, 2064, 2156...
[ "nonn", "easy" ]
A194011
[ 1, 3, 2, 7, 4, 5, 13, 8, 9, 6, 21, 14, 15, 10, 11, 31, 22, 23, 16, 17, 12, 43, 32, 33, 24, 25, 18, 19, 57, 44, 45, 34, 35, 26, 27, 20, 73, 58, 59, 46, 47, 36, 37, 28, 29, 91, 74, 75, 60, 61, 48, 49, 38, 39, 3...
[ "nonn", "tabl" ]
A022194
[ 1, 4095, 11180715, 26167664835, 57162391576563, 120843139740969550, 251413193158549540000, 5.1894652515087914e+23, 1.066968301301094e+27, 2.189425218271614e+30, 4.4883238376574125e+33 ]
[ "nonn" ]
A262520
[ 1, 1, 1, 2, 0, 1, 2, 1, 1, 3, 2, 3, 0, 3, 4, 5, 4, 5, 3, 5, 6, 7, 5, 6, 1, 6, 7, 7, 8, 8, 10, 7, 2, 10, 9, 10, 13, 9, 11, 12, 1, 1, 4, 1, 3, 3, 2, 3, 7, 2, 2, 5, 7, 4, 9, 5, 6, 5, 5, 5, 6, 5, ...
[ "sign" ]
A308376
[ 0, 2, 0, 0, 0, 2, 3, 3, 17, 16, 7, 10, 12, 0, 4, 28, 6, 19, 2, 22, 5, 0, 4, 12, 11, 7, 18, 19, 8, 6, 4, 45, 3, 11, 8, 58, 2, 11, 43, 37, 4, 17, 28, 5, 27, 7, 3, 8, 10, 69, 3, 4, 14, 38, 6, 30, 12, 48, ...
[ "nonn" ]
A332147
[ 7, 474, 44744, 4447444, 444474444, 44444744444, 4444447444444, 444444474444444, 44444444744444450, 4444444447444444700, 444444444474444400000, 4.444444444474445e+22, 4.4444444444474444e+24, 4.4444444444447445e+26, 4.444444444444475e+28, 4.4444444444444476e+30 ]
[ "nonn", "base", "easy" ]
A295940
[ 6, 104, 465, 2976, 29081, 187960, 1311947, 10551008, 75078015, 542376658, 4102072137, 29938839387, 218987934561, 1625448060901, 11941735079412, 87729809567537, 647502964091097, 4765006142911640, 35058385899691710 ]
[ "nonn" ]
A316537
[ 1, 5, 13, 28, 49, 73, 116, 176, 202, 265, 378, 464, 550, 636, 842, 936, 1041, 1183, 1486, 1712, 2082, 2055, 2120, 3088, 2114, 3023, 2503, 4200, 4238, 4862, 4902, 4648, 6564, 5749, 7434, 7688, 6331, 8190, 9880, 11344, 10172, 12066, 9...
[ "nonn" ]
A267843
[ 1, 0, 20, 112, 492, 2024, 8164, 32704, 131004, 524216, 2097076, 8388528, 33554348, 134217640, 536870820, 2147483520, 8589934460, 34359738232, 137438953332, 549755813744, 2199023255404, 8796093022056, 35184372088676, 140737488355136, 562949953421116 ]
[ "nonn", "easy" ]
A152624
[ 3, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "cons" ]
A268530
[ 1, 2, 4, 5, 12, 13, 36, 41, 42, 91, 137, 168, 170, 219, 224, 226, 280, 388, 393, 424, 442, 452, 454, 464, 549, 836, 838, 936, 1073, 1652, 2797, 2913, 3528, 3807, 3809, 3811, 4550, 5209, 5413, 5849, 5851 ]
[ "nonn" ]
A151702
[ 1, 0, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 3, 4, 3, 1, 1, 2, 2, 2, 3, 4, 3, 2, 3, 4, 4, 5, 7, 7, 4, 1, 1, 2, 2, 2, 3, 4, 3, 2, 3, 4, 4, 5, 7, 7, 4, 2, 3, 4, 4, 5, 7, 7, 5, 5, 7, 8, 9, 12, 14, 11, ...
[ "nonn" ]
A329452
[ 0, 1, 2, 8, 4, 5, 6, 3, 7, 11, 10, 9, 12, 13, 28, 15, 17, 16, 20, 14, 21, 22, 19, 23, 25, 24, 29, 30, 26, 18, 35, 31, 32, 27, 34, 36, 33, 38, 37, 40, 63, 39, 41, 44, 42, 45, 47, 50, 51, 43, 52, 49, 46, 48, 53...
[ "nonn" ]
A049496
[ 37, 163, 15667, 53593, 142543, 305407, 607093, 671353, 904663, 1172803, 1233523, 1351837, 1378843, 1389217, 1457857, 1686133, 1842523, 1867783, 2451793, 2668213, 2694157, 2979043, 3095227, 4228723, 4890307, 5535853, 5772097, 5859613, 6404773, 6827503, 6933...
[ "nonn" ]
A320663
[ 1, 1, 4, 7, 21, 40, 106, 216, 534, 1139, 2715, 5962, 14012, 31420, 73484, 167617, 392714, 908600, 2140429, 5015655, 11905145, 28228533, 67590229, 162067916, 391695348, 949359190, 2316618809, 5673557284, 13979155798, 34583650498, 86034613145, 214948212879...
[ "nonn" ]
A085169
[ 0, 1, 2, 3, 4, 5, 6, 8, 7, 9, 10, 11, 13, 12, 14, 15, 19, 22, 21, 16, 18, 17, 20, 23, 24, 25, 27, 26, 28, 29, 33, 36, 35, 30, 32, 31, 34, 37, 38, 39, 41, 40, 51, 52, 60, 64, 63, 56, 59, 58, 62, 42, 43, 47, 50...
[ "nonn" ]