id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A138339
[ 0, 7, 4, 12 ]
[ "nonn", "less", "base", "bref" ]
A177618
[ 1, 20, 1680, 364758, 162161006, 128434364522, 165062027642714, 321840048409989440 ]
[ "nonn" ]
A388146
[ 1, 1, 2, 1, 1, 4, 1, 1, 2, 8, 1, 1, 1, 4, 16, 1, 1, 1, 2, 7, 32, 1, 1, 1, 1, 4, 12, 64, 1, 1, 1, 1, 2, 7, 21, 128, 1, 1, 1, 1, 1, 4, 11, 37, 256, 1, 1, 1, 1, 1, 2, 7, 17, 65, 512, 1, 1, 1, 1, 1, 1...
[ "nonn", "tabl" ]
A091758
[ 1, 41, 5993, 1911281, 1070544561, 931648129241, 1164230224629081, 1977455909783346200, 4.384042247054154e+21, 1.2298460017360157e+25, 4.259462149341838e+28, 1.7853487070844674e+32, 8.908134165492977e+35 ]
[ "sign", "easy" ]
A326883
[ 1, 1, 4, 22, 302, 28630, 216533404, 5592325966377736 ]
[ "nonn", "more" ]
A147475
[ 1, 1, 1, 9, 25, 93, 633, 7225, 110262, 1975143, 50880872, 1933660635, 104069532412, 7622213781825 ]
[ "nonn" ]
A065313
[ 0, 1, 3, 4, 6, 7, 9, 11, 11, 12, 16, 17, 21, 23, 24, 24, 30, 30, 36, 37, 39, 40, 46, 47, 48, 51, 53, 54, 61, 62, 68, 70, 72, 74, 76, 77, 86, 87, 91, 92, 99, 100, 110, 112, 114, 117, 126, 128, 130, 132, 135, 137, ...
[ "nonn" ]
A281566
[ 0, 6, 815, 3374, 12133, 31300, 67834, 136056, 264286, 498750, 924374, 1694678, 3076872, 5538752, 9905630, 17619912, 31184144, 54940940, 96415390, 168598070, 293855280, 510636866, 884919690, 1529682370, 2638054884, 4539684028 ]
[ "nonn" ]
A216501
[ 0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 2, 0, 0, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 1, 2, 1, 2, 0, 2, 3, 1, 1, 1, 2, 0, 3, 2, 1, 0, 0, 2, 1, 1, 1, 2, 2, 1, 0, 1, 2, 1, 1, 0, 2, 0, 1, 2...
[ "nonn" ]
A010253
[ 2, 1, 5, 2, 2, 7, 1, 16, 4, 1, 8, 10, 7, 1, 4, 5, 1, 2, 2, 3, 1, 1, 1, 1, 3, 7, 1, 12, 1, 1, 1, 4, 19, 18, 3, 1, 4, 3, 6, 1, 3, 17, 1, 2, 1, 1, 1, 1, 1, 8, 81, 5, 13, 1, 2, 2, 8, 1, 3, 6, 6, 2, ...
[ "nonn", "cofr" ]
A346469
[ 0, 1, 1, 5, 3, 3, 1, 7, 8, 31, 3, 3, 5, 5, 5, 5, 120, 15, 25, 25, 50, 25, 75, 75, 125, 125, 125, 125, 750, 375, 1, 9, 10, 41, 3, 3, 12, 59, 71, 247, 3, 3, 5, 5, 5, 5, 15, 15, 50, 25, 25, 25, 75, 75, 375, 12...
[ "nonn", "base", "look" ]
A105231
[ 1, 2, 12, 347, 1226525, 400507800465455 ]
[ "nonn", "hard", "more" ]
A025754
[ 1, 1, 36, 1836, 107406, 6766578, 446594148, 30432201228, 2122646035653, 150707868531363, 10850966534258136, 790147653994615200, 58075852568604210000, 4.30208046335122e+21, 3.208122859813338e+23, 2.4060921448600038e+25, 1.813591954188228e+27 ]
[ "nonn", "changed" ]
A066321
[ 0, 1, 12, 13, 464, 465, 476, 477, 448, 449, 460, 461, 272, 273, 284, 285, 256, 257, 268, 269, 3280, 3281, 3292, 3293, 3264, 3265, 3276, 3277, 3088, 3089, 3100, 3101, 3072, 3073, 3084, 3085, 3536, 3537, 3548, 3549, 3520, 3521, 3532, ...
[ "base", "easy", "nonn" ]
A078776
[ 106, 166, 316, 526, 586, 736, 1156, 1366, 1485, 1486, 1576, 1756, 1786, 1816, 1996, 2146, 2206, 2416, 2476, 2535, 2536, 2806, 2836, 3003, 3004, 3046, 3316, 3466, 3675, 3676, 3886, 3927, 3928, 4096, 4126, 4306, 4455, 4456, 4485, 4486, 45...
[ "nonn" ]
A189750
[ 1, 3, 4, 7, 8, 10, 13, 14, 16, 18, 20, 22, 24, 26, 27, 30, 31, 33, 36, 37, 39, 41, 43, 45, 47, 49, 50, 53, 55, 56, 58, 60, 62, 63, 66, 68, 69, 72, 73, 75, 78, 79, 81, 83, 85, 87, 89, 91, 92, 95, 96, 98, 101, 10...
[ "nonn" ]
A344510
[ 1, 5, 12, 24, 35, 63, 70, 112, 135, 185, 176, 312, 247, 371, 450, 512, 425, 729, 532, 920, 903, 935, 782, 1488, 1125, 1313, 1458, 1848, 1247, 2475, 1426, 2304, 2277, 2261, 2660, 3672, 2035, 2831, 3198, 4400, 2501, 4977, 2752, 4664...
[ "nonn" ]
A143276
[ 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 3, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 5, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 4, 0, 1, 0, 0, 0, 0, 0, 1, 0, 3, 0, 0, 0, 0, 0, 0, 0, 1, 9, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "tabl" ]
A351829
[ 1, 0, 9, 4, 2, 6, 9, 2, 2, 7, 1, 7, 9, 9, 2, 0, 6, 2, 7, 2, 2, 1, 6, 2, 5, 6, 8, 9, 7, 0, 8, 1, 2, 9, 9, 5, 9, 9, 6, 4, 2, 2, 7, 6, 7, 9, 7, 6, 4, 1, 8, 2, 7, 1, 1, 7, 7, 9, 4, 9, 6, 5, 0, 1...
[ "nonn", "cons" ]
A269181
[ 24, 384, 5888, 80112, 1031344, 12791896, 154606864, 1833130768, 21416076480, 247279304248, 2828051682752, 32088228414160, 361662427633424, 4053056289550296, 45198059875209900, 501865175240768960 ]
[ "nonn" ]
A033800
[ 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0...
[ "nonn" ]
A247181
[ 2, 2, 4, 4, 8, 14, 24, 32, 64, 124 ]
[ "nonn", "more", "hard" ]
A091007
[ 1, 4, 2, 4, 7, 4, 1, 7, 7, 8, 4, 2, 9, 9, 8, 0, 8, 8, 9, 7, 6, 1, 5, 4, 7, 8, 0, 6, 8, 8, 9, 2, 3, 4, 1, 5, 2, 8, 0, 2, 0, 6, 6, 3, 3, 4, 6, 0, 1, 8, 1, 8, 0, 4, 0, 6, 5, 7, 2, 4, 5, 7, 7, 3...
[ "nonn", "cons" ]
A270057
[ 30720, 414705720, 3230189811360, 21244602958557060, 128543872461556330000, 7.399630615401576e+23, 4.120579270516551e+27, 2.240873696135461e+31, 1.197181096791835e+35 ]
[ "nonn" ]
A265433
[ 0, 1, 1, 0, 1, 0, 2, 1, 0, 1, 2, 0, 5, 1, 0, 4, 3, 0, 8, 2, 0, 2, 2, 0, 10, 1, 0, 5, 4, 0, 8, 1, 0, 4, 2, 0, 17, 0, 0, 7, 4, 0, 13, 3, 0, 0, 3, 0, 17, 4, 0, 12, 1, 0, 13, 1, 0, 6, 2, 0, 18, 1, ...
[ "nonn", "base" ]
A112130
[ 25451790, 29445850, 76355370, 218715490, 236862990, 380011170, 514144750, 628241740, 777146230, 882792120, 930646080, 944173860, 1105472340, 1349221230, 1542434250, 1564227910, 1832212270, 1898927100, 1994085030 ]
[ "nonn" ]
A160202
[ 1, 2, 3, 0, 2, 9, 0, 6, 4, 1, 9, 9, 8, 0, 0, 6, 3, 2, 0, 9, 2, 6, 8, 3, 6, 9, 6, 2, 8, 5, 9, 2, 2, 3, 8, 4, 5, 0, 3, 4, 0, 7, 4, 7, 6, 6, 0, 0, 4, 8, 0, 8, 6, 1, 0, 6, 3, 4, 0, 4, 0, 6, 0, 7...
[ "cons", "nonn" ]
A161021
[ 703, 2110, 1055, 3166, 1583, 4750, 2375, 7126, 3563, 10690, 5345, 16036, 8018, 4009, 12028, 6014, 3007, 9022, 4511, 13534, 6767, 20302, 10151, 30454, 15227, 45682, 22841, 68524, 34262, 17131, 51394, 25697, 77092, 38546, 19273, 57820, 28910 ]
[ "nonn", "easy" ]
A073950
[ 1, 2, 3, 9, 30, 81, 225, 702, 2187, 6561, 19602, 59049, 177633, 532170, 1594323, 4782969, 14351094, 43046721, 129127041, 387400806, 1162261467, 3486784401, 10460294154, 31381059609, 94143533121, 282430067922, 847288609443, 2541865828329, 7625599079310 ]
[ "easy", "nonn" ]
A105208
[ 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 26, 30, 33, 41, 52, 67, 69, 78, 80, 105, 122, 123, 139, 145, 201, 208, 216, 242, 312, 313, 337, 348, 354, 414, 528, 569, 599, 779, 783, 878, 925, 992, 1024, 1103, 1106, 1270, 1283,...
[ "nonn" ]
A221799
[ 1, 338, 4073, 308070, 8348792, 399279970, 13922688699, 579257407874, 21834235656858, 870030406828016, 33601209785307296, 1320837497060408800, 51404875754751390000, 2.0119658712774704e+21, 7.84946079042004e+22 ]
[ "nonn" ]
A146675
[ 1, 1, 1, 1, 5, 1, 23, 13, 524, 295, 16870, 4271, 898998, 126315, 77111883, 11176639, 18132712367, 2597442391, 8818967242020, 846650197340, 7776283446966159, 491920350834891, 12490870356605608000, 626865570839050000 ]
[ "nonn" ]
A090908
[ 1, 3, 4, 6, 8, 9, 11, 12, 14, 16, 17, 19, 21, 22, 24, 25, 27, 29, 30, 32, 33, 35, 37, 38, 40, 42, 43, 45, 46, 48, 50, 51, 53, 55, 56, 58, 59, 61, 63, 64, 66, 67, 69, 71, 72, 74, 76, 77, 79, 80, 82, 84, 85, 87, ...
[ "nonn" ]
A288304
[ 11, 13, 233, 394249, 13404169, 24663654409, 311607296009, 1282510028809, 3.7455569511954514e+22, 1.7179271678424953e+27, 1.821002797913045e+29, 1.3128555848847703e+41, 4.535377489608147e+50 ]
[ "nonn" ]
A316458
[ 60, 540, 2160, 6000, 13500, 26460, 47040, 77760, 121500, 181500, 261360, 365040, 496860, 661500, 864000, 1109760, 1404540, 1754460, 2166000, 2646000, 3201660, 3840540, 4570560, 5400000, 6337500, 7392060, 8573040, 9890160, 11353500, 12973500, 14760960 ]
[ "nonn", "easy" ]
A157064
[ 2, 90, 2252, 39500, 535502, 5930022, 55599992, 452715672, 3262336002, 21114177018, 124188986196, 670283877588, 3346707628446, 15564971674518, 67830161708592, 278406848295312, 1081149205136382, 3988232552194662, 14025412751733092, 47171740235162340 ]
[ "nonn" ]
A318881
[ 1, 1, 2, 2, 3, 2, 4, 3, 4, 3, 4, 3, 5, 4, 6, 6, 7, 4, 5, 6, 5, 4, 4, 6, 5, 5, 5, 5, 5, 6, 8, 7, 5, 7, 9, 5, 10, 5, 9, 7, 9, 5, 8, 5, 9, 4, 4, 7, 8, 5, 11, 9, 5, 5, 9, 9, 10, 5, 4, 7, 12, 8, 10...
[ "nonn" ]
A206300
[ -1, 2, 6, 32, 210, 1536, 12012, 98304, 831402, 7208960, 63740820, 572522496, 5209363380, 47915728896, 444799488600, 4161823309824, 39209074920090, 371626340253696, 3541117629057540 ]
[ "sign", "easy" ]
A357294
[ 1, 1, 2, 9, 49, 364, 3335, 37026, 496241 ]
[ "nonn", "more" ]
A011898
[ 0, 0, 0, 0, 1, 3, 7, 13, 21, 31, 45, 61, 82, 107, 136, 170, 210, 255, 306, 363, 427, 498, 577, 664, 759, 862, 975, 1096, 1228, 1370, 1522, 1685, 1860, 2046, 2244, 2454, 2677, 2913, 3163, 3427, 3705, 3997, 4305 ]
[ "nonn", "easy" ]
A075788
[ 3, 3, 2, 2, 3, 0, 4, 4, 5, 13, 3, 4, 7, 0, 8, 5, 5, 3, 3, 6, 5, 7, 3, 2, 5, 35, 6, 2, 15, 83, 16, 6, 7, 0, 18, 10, 8, 37, 8, 7, 7, 0, 22, 5, 7, 17, 2, 8, 9, 0, 10, 14, 27, 9, 8, 8, 11, 0, 30, 8, 5...
[ "nonn" ]
A018001
[ 1, 2, 4, 9, 19, 39, 81, 168, 350, 729, 1516, 3154, 6561, 13647, 28388, 59049, 122827, 255490, 531441, 1105442, 2299412, 4782969, 9948976, 20694705, 43046721, 89540788, 186252345, 387420489, 805867092, 1676271101, 3486784401, 7252803827, 15086439912 ]
[ "nonn" ]
A226757
[ 1, 16, 16, 16, 81, 256, 256, 81, 256, 1296, 1296, 256, 2401, 4096, 1296, 256, 6561, 4096, 10000, 1296, 4096, 20736, 20736, 1296, 14641, 38416, 14641, 4096, 50625, 20736, 65536, 2401, 20736, 104976, 20736, 4096, 130321, 160000, 38416, 6561...
[ "nonn", "mult", "changed" ]
A358684
[ 0, 0, 0, 0, 0, 23, 46, 73, 206, 491, 999, 2030, 4080, 8151 ]
[ "nonn", "more" ]
A318710
[ 1, -1, 1447, -1559527, 366331136219, -637231027521743, 2.629597771763437e+21, -9.781318441276303e+24, 5.699253125605574e+33, -1.3391188869589008e+37, 3.321402167595683e+46 ]
[ "sign", "frac" ]
A276497
[ 1, 2, 8, 43, 339, 3243, 42325, 646022, 12283523, 300369787, 8028643000, 25948875073, 9414916809083, 362597750396727, 15397728527812844, 742238179058722800, 40068968501510690000 ]
[ "nonn", "more" ]
A321246
[ 0, 2, 76332, 2557101612, 6352711134515, 2747239197568620, 378972203462839700, 23698347614119890000, 832593421909253800000, 1.888586244280679e+22, 3.040643443796026e+23, 3.7163593333132245e+24, 3.622678480191851e+25, 2.923383198766518e+26, 2.0099926437460356e+27, 1.2045344786281525e+28,...
[ "nonn" ]
A287092
[ 69, 96, 609, 619, 689, 906, 916, 986, 1691, 1961, 6009, 6119, 6699, 6889, 6969, 8698, 8968, 9006, 9116, 9696, 9886, 9966, 16091, 16191, 16891, 19061, 19161, 19861, 60009, 60109, 60809, 61019, 61119, 61819, 66099, 66199, 66899, 68089, 68189,...
[ "nonn", "base" ]
A198400
[ 1, 0, 80, 970, 9960, 99950, 999940, 9999930, 99999920, 999999910, 9999999900, 99999999890, 999999999880, 9999999999870, 99999999999860, 999999999999850, 9999999999999840, 99999999999999820, 999999999999999900, 10000000000000000000, 100000000000000000000, 1e+21 ]
[ "nonn", "easy" ]
A234039
[ 1, 1, 19, 1657009, 9.950006745799418e+21, 1.9389268200585835e+70 ]
[ "nonn" ]
A170263
[ 1, 14, 182, 2366, 30758, 399854, 5198102, 67575326, 878479238, 11420230094, 148462991222, 1930018885886, 25090245516518, 326173191714734, 4240251492291542, 55123269399790050, 716602502197270700 ]
[ "nonn" ]
A205090
[ 256, 1328, 8176, 55848, 401164, 2965056, 22161076, 166572246, 1254940334, 9466169218, 71445543963, 539397114979, 4072935596742, 30756750419559, 232268549150385, 1754078998631223, 13246841683912512, 100040954964697330 ]
[ "nonn" ]
A244589
[ 1, 1, 5, 67, 1937, 98791, 7744549, 857382695, 126889656641, 24157912257775, 5749369223697701, 1672527291075462700, 584038879457972500000, 2.4115000256659086e+23, 1.1624538599629837e+26, 6.470725290290539e+28, 4.119898274743831e+31 ]
[ "nonn" ]
A175514
[ 0, 1, 30, 31, 3900, 3901, 93900, 93901, 97000, 97001, 1270000000, 1270000001, 496864267596900, 496864267596901, 596044970707000, 596044970707001, 300522773449238140, 300522773449238140, 1549835974179703800, 1549835974179703800, 39043445740978905000, 39043445740978905000, ...
[ "base", "nonn" ]
A070628
[ 0, 1, 32, 18, 34, 20, 36, 22, 8, 9, 10, 41, 27, 43, 29, 0, 31, 17, 18, 19, 5, 36, 7, 38, 9, 40, 26, 27, 28, 14, 0, 16, 2, 18, 4, 35, 36, 37, 23, 9, 25, 11, 27, 13, 44, 0, 1, 32, 18, 34, 20, 36, 22, 8, 9, 10...
[ "nonn", "easy" ]
A070454
[ 0, 1, 4, 9, 16, 25, 4, 17, 0, 17, 4, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 4, 17, 0, 17, 4, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 4, 17, 0, 17, 4, 25, 16, 9, 4, 1, 0, 1, 4, 9, 16, 25, 4, 17, 0, 17, 4, ...
[ "nonn", "easy" ]
A095111
[ 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1...
[ "nonn" ]
A380859
[ 1, 0, 0, 0, 0, 630, 36, 4, 12, 4232, 770 ]
[ "nonn", "more" ]
A198204
[ 1, 1, 2, 1, 9, 12, 1, 28, 120, 120, 1, 75, 750, 2100, 1680, 1, 186, 3780, 21840, 45360, 30240, 1, 441, 16856, 176400, 705600, 1164240, 665280, 1, 1016, 69552, 1224720, 8316000, 25280640, 34594560, 17297280, 1, 2295, 272250, 7692300, 825...
[ "nonn", "easy", "tabl" ]
A186412
[ 1, 3, 5, 2, 9, 3, 12, 2, 6, 3, 20, 3, 7, 4, 25, 2, 6, 3, 13, 5, 4, 38, 3, 7, 4, 14, 3, 9, 5, 49, 2, 6, 3, 13, 5, 4, 23, 4, 10, 6, 5, 69, 3, 7, 4, 14, 3, 9, 5, 27, 5, 4, 15, 7, 6, 87, 2, 6, 3, 13, ...
[ "nonn", "tabf" ]
A231867
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 7, 1, 1, 1, 1, 3, 1, 1, 1, 7, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 5, 1, 1, 3, 1, 1, 9, 4, 1, 1, 1, 1, 1, 1, 3, 1, 7, 1, 1, 1, 1, 5, 22, 1, 3, 1, ...
[ "nonn" ]
A330848
[ 50, 14, 0, 84, 20, 0, 132, 42, 2, 188, 116, 0, 290, 202, 0, 428, 350, 0, 634, 542, 0, 890, 840, 2, 1290, 1156, 0, 1776, 1640, 0, 2392, 2220, 2, 3108, 3064, 0, 4112, 3946, 2, 5260, 5076, 4, 6696, 6350, 6, 8308, 8072, 8, 1...
[ "nonn", "tabf" ]
A203611
[ 1, 1, 1, 3, 7, 16, 39, 95, 233, 577, 1436, 3590, 9011, 22691, 57299, 145043, 367931, 935078, 2380405, 6068745, 15492702, 39598631, 101323446, 259522398, 665332007, 1707137941, 4383662419, 11264675925, 28966161253, 74530441162, 191879611399, 494265165151 ...
[ "nonn", "changed" ]
A240976
[ 1, 8, 2, 6, 9, 0, 7, 4, 2, 3, 5, 0, 3, 5, 9, 6, 2, 4, 6, 8, 1, 5, 0, 9, 1, 8, 2, 8, 2, 6, 9, 2, 8, 6, 5, 9, 8, 8, 2, 0, 0, 2, 9, 0, 1, 2, 6, 9, 8, 4, 3, 6, 1, 7, 5, 1, 7, 8, 3, 1, 3, 3, 9, 1...
[ "nonn", "cons", "easy" ]
A222118
[ 1, 1, 6, 0, 0, 1, 10, 0, 3, 0, 0, 1, 0, 0, 9, 0, 0, 1, 5, 0, 3, 0, 0, 1, 3, 0, 95, 0, 0, 1, 0, 0, 3, 0, 0, 1, 3, 0, 12, 0, 0, 1, 8, 0, 3, 0, 0, 1, 0, 0, 5, 0, 0, 1, 7, 0, 3, 0, 0, 1, 0, 0, 13,...
[ "nonn" ]
A369040
[ 1, 2, 2, 3, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 12, 2, 13, 14, 15, 2, 16, 14, 17, 18, 19, 2, 20, 2, 21, 22, 23, 24, 25, 2, 26, 27, 28, 2, 29, 2, 30, 31, 32, 2, 33, 22, 34, 35, 36, 2, 37, 27, 38, 39, ...
[ "nonn" ]
A192117
[ 0, 2, 4, 5, 20, 28, 32, 34, 35, 88, 152, 184, 200, 208, 212, 214, 215, 272, 784, 1040, 1168, 1232, 1264, 1280, 1288, 1292, 1294, 1295, 3680, 5728, 6752, 7264, 7520, 7648, 7712, 7744, 7760, 7768, 7772, 7774, 7775, 13888, 17792, 302...
[ "nonn" ]
A159820
[ 13, 1, 4, 2, 13, 3, 1, 1, 7, 3, 30, 1, 7, 1, 1, 40, 2, 6, 2, 1, 35, 4, 1, 3, 3, 1, 3, 3, 8, 1, 1, 4, 3, 5, 7, 1, 1, 1, 1, 2, 1, 2, 2, 1, 188, 3, 2, 1, 7, 1, 1, 13, 1, 7, 28, 2, 2, 47, 31, 1, 1, ...
[ "nonn" ]
A300539
[ 1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 16, 12, 16, 1, 1, 40, 36, 36, 40, 1, 1, 113, 122, 300, 122, 113, 1, 1, 304, 429, 1436, 1436, 429, 304, 1, 1, 833, 1585, 8974, 12951, 8974, 1585, 833, 1, 1, 2270, 5755, 52012, 124543, ...
[ "nonn", "tabl" ]
A330680
[ 1, 9, 27, 49, 88, 125, 243, 289, 361, 484, 841, 968, 1164, 1331, 1369, 2401, 3125, 3488, 3721, 6889, 7085, 7761, 7921, 8342, 8502, 9156, 10648, 19683, 22208, 22801, 25886, 28561, 29929, 30877, 32041, 32761, 33178, 36481, 59049, 83521, 8...
[ "nonn" ]
A369754
[ 1, -1, 2, 21, -104, -8245, -124344, 7728581, 757142912, 21142327671, -3194024271200, -589138966169611, -38768504982354430, 4948651031184677000, 2.0224683867480394e+21, 3.037119066412506e+23, -7.986432746850744e+24, -1.9535207301291994e+28 ]
[ "sign" ]
A230398
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 82, 82, 2, 0, 0, 8, 842, 3200, 842, 8, 0, 0, 32, 9068, 88580, 88580, 9068, 32, 0, 0, 120, 92538, 2467778, 6605632, 2467778, 92538, 120, 0, 0, 430, 934880, 68210356, 50...
[ "nonn", "tabl" ]
A295257
[ 1, 1, 4, 32, 368, 5656, 109024, 2533712, 68995328, 2155513216, 76014982144, 2987332904192, 129473128921088, 6135478762187776, 315609465774936060, 17515027337549545000, 1.0431042190101475e+21, 6.635846225037868e+22, 4.491141928841064e+24, 3.2221944924253116e+26 ]
[ "nonn" ]
A055878
[ 1, 1, 2, 1, 6, 1, 43, 1, 7794, 1, 387355897233, 1, 5.8111569344245785e+34, 1 ]
[ "nonn" ]
A256207
[ 1, 1, 2, 6, 24, 119, 694, 4582, 33325, 261853, 2191902, 19344408, 178582940, 1713999264, 17019444969, 174149184184, 1830279810276, 19703572779755, 216769635980879, 2432308876304981, 27788506478197950, 322770995262901100, 3806657237502633000, 45532086120583545000 ]
[ "nonn" ]
A371490
[ 1, 1, 3, 15, 91, 601, 4155, 29553, 214303, 1575931, 11712599, 87776507, 662224819, 5023611579, 38284084575, 292892970967, 2248271735299, 17307950940833, 133580448494227, 1033263820897777, 8008342899292167, 62179343789159944, 483553052098053900 ]
[ "nonn" ]
A021322
[ 0, 0, 3, 1, 4, 4, 6, 5, 4, 0, 8, 8, 0, 5, 0, 3, 1, 4, 4, 6, 5, 4, 0, 8, 8, 0, 5, 0, 3, 1, 4, 4, 6, 5, 4, 0, 8, 8, 0, 5, 0, 3, 1, 4, 4, 6, 5, 4, 0, 8, 8, 0, 5, 0, 3, 1, 4, 4, 6, 5, 4, 0, 8, 8...
[ "nonn", "cons", "easy" ]
A321790
[ 3, 3, 3, 5, 3, 7, 3, 3, 5, 5, 7, 3, 3, 3, 3, 3, 3, 7, 3, 3, 3, 7, 3, 5, 3, 3, 3, 3, 3, 3, 3, 7, 3, 3, 5, 3, 3, 3, 3, 13, 3, 3, 3, 3, 5, 3, 3, 3, 3, 7, 3, 3, 13, 5, 3, 7, 3, 3, 3, 3, 3, 7, 3, ...
[ "nonn" ]
A341345
[ 1, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 2, 0, 2, 0, 2, 1, 2, 1, 2, 0, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 0, 2...
[ "nonn" ]
A185516
[ 2553, 115979, 2490449, 80761059, 2183297449, 65652458491, 1894624012417, 56140705014995, 1649002255383641, 48754926946880490, 1438991178016736000, 42542454880958050000, 1.257346657004361e+21, 3.7177308864717055e+22 ]
[ "nonn" ]
A326525
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 4, 5, 8, 9, 14, 18, 24, 28, 39, 46, 60, 69, 90, 105, 133, 149, 189, 216, 264, 297, 364, 412, 494, 553, 661, 743, 877, 972, 1149, 1280, 1493, 1650, 1922, 2126, 2454, 2702, 3107, ...
[ "nonn" ]
A359269
[ 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 0, 2, 0, 3, 0, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 4, 0, 1, 0, 2, 0, 2, 1, 2, 0, 1, 0, 3, 0, 3, 1, 2, 0, 1, 0, 2, 1, 1, 0, 4, 0, 1, 0, 4, 0, 1...
[ "nonn", "easy" ]
A015411
[ 1, -1730160900, 3492366196825305000, -6.885474806748086e+27, 1.3620506320919298e+37, -2.693058905794318e+46, 5.325102657527201e+55 ]
[ "sign", "easy" ]
A304621
[ 9, 8, 7, 6, 5, 4, 3, 2, 1, 9, 5, 7, 15, 8, 10, 12, 8, 7, 9, 14, 13, 24, 11, 13, 21, 17, 16, 9, 14, 16, 33, 17, 16, 30, 20, 28, 9, 20, 16, 42, 26, 25, 39, 20, 28, 9, 29, 25, 51, 29, 28, 48, 26, 31, 9, 32, ...
[ "nonn", "look" ]
A123341
[ 1, 1, 2, 3, 6, 11, 22, 42, 81, 156, 312, 613, 1226, 2430, 4818, 9555, 19110, 38064, 76128, 151944, 303275, 605324, 1210648, 2418866, 4832914, 9656273, 19293436, 38548808, 77097616, 154119104, 308238208, 616324472, 1232345669, 2464086014, 4926961380...
[ "nonn", "changed" ]
A315723
[ 1, 6, 12, 18, 21, 24, 30, 42, 45, 48, 54, 60, 66, 66, 78, 84, 87, 90, 96, 108, 105, 114, 120, 126, 132, 132, 144, 144, 153, 156, 162, 174, 171, 180, 180, 192, 198, 198, 210, 210, 219, 216, 228, 240, 237, 246, 246, 258, 2...
[ "nonn" ]
A230025
[ 1, 0, 2, 1, 0, 2, 1, 2, 0, 2, 1, 2, 2, 0, 2, 1, 2, 4, 2, 0, 2, 1, 4, 2, 4, 2, 0, 2, 2, 2, 6, 2, 6, 2, 0, 2, 2, 6, 2, 8, 2, 6, 2, 0, 2, 2, 4, 12, 2, 8, 2, 8, 2, 0, 2, 2, 8, 6, 14, 2, 10, 2, 8, ...
[ "nonn", "tabl", "easy" ]
A255657
[ 3340, 11752, 42653, 155144, 564600, 2036844, 7323894, 26452984, 95690028, 345980784, 1250385422, 4516046380, 16313317592, 58952879320, 213036643465, 769783313248, 2781411265212, 10049660711008, 36312457046956, 131210437887132, 474105380419912, 1713085295392596 ]
[ "nonn" ]
A227058
[ 35, 329, 2934, 24511, 183000, 1202223, 6979049, 36211854, 170079551, 731624081, 2911895167, 10815978236, 37768115156, 124748330535, 391810133572, 1175449312194, 3381493985505, 9359644588159, 25000202714038, 64609485660739 ]
[ "nonn" ]
A345826
[ 2932, 4147, 4212, 4387, 5427, 5602, 5667, 6627, 6692, 6817, 6822, 6837, 6852, 6867, 7012, 7122, 7251, 7316, 7491, 7747, 7857, 8052, 8097, 8162, 8402, 8467, 8532, 8707, 8787, 9027, 9092, 9157, 9172, 9202, 9237, 9252, 9332, 9412, 9442, 9492...
[ "nonn" ]
A263146
[ 1, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 2, 0, 3, 0, 0, 4, 0, 4, 1, 0, 10, 0, 5, 6, 0, 16, 0, 6, 14, 0, 28, 3, 7, 32, 0, 40, 10, 8, 63, 0, 60, 33, 9, 112, 3, 80, 74, 10, 187, 14, 110, 161, 11, 300, 46, 140, 308...
[ "nonn" ]
A134632
[ 0, 6, 176, 1278, 5280, 15950, 39456, 84966, 165248, 297270, 502800, 809006, 1249056, 1862718, 2696960, 3806550, 5254656, 7113446, 9464688, 12400350, 16023200, 20447406, 25799136, 32217158, 39853440, 48873750, 59458256, 71802126, 86116128, 102627230, 121579...
[ "nonn", "easy" ]
A235159
[ 1023467, 1023487, 1023697, 1023769, 1023857, 1023947, 1024357, 1024379, 1024579, 1024589, 1024693, 1024697, 1024783, 1024853, 1024957, 1024963, 1024987, 1025347, 1025483, 1025693, 1025749, 1025789, 1025839, 1025873, 1025897, 1026359, 1026439, 1026457 ]
[ "nonn", "base" ]
A134406
[ 10, 26, 50, 65, 82, 122, 145, 170, 226, 290, 325, 362, 442, 485, 530, 626, 730, 785, 842, 901, 962, 1025, 1090, 1157, 1226, 1370, 1445, 1522, 1682, 1765, 1850, 1937, 2026, 2117, 2210, 2305, 2402, 2501, 2602, 2705, 2810, 3026, 3250, ...
[ "nonn" ]
A358423
[ 16, 18, 68, 76, 80, 89, 90, 93, 105, 109, 123, 143, 168, 286, 322, 366, 405, 448, 493, 494, 540, 541, 543, 591, 593, 646, 702, 770, 826, 832, 891, 893, 897, 960, 962, 966, 1032, 1034, 1039, 1110, 1112, 1117, 1193, 1195, 1200, ...
[ "nonn" ]
A032637
[ 0, 1, 3, 11, 35, 112, 353, 1111, 3490, 10966, 34451, 108231, 340019, 1068203, 3355859, 10542742, 33121003, 104052699, 326891197, 1026958985, 3226286805, 10135678925, 31842174452, 100035141333, 314269665113, 987307271166 ]
[ "nonn", "easy" ]
A370260
[ 1, 3, 31, 617, 18529, 748859, 38149567, 2348482961, 169641143873, 14071599763379, 1318414335714015, 137720427724123520, 15871136311527377000, 2.000355821099358e+21, 2.73735526097743e+23, 4.041922737855196e+25, 6.405616571975691e+27 ]
[ "nonn", "easy" ]
A101769
[ 2894219, 60041519, 64523969, 242024369, 407874179, 1092040949, 1092075389, 1674689729, 2281060319, 5035134509, 5329406669, 5683382879, 5792424329, 6000216809, 6380217479, 10409580719, 11488703939, 13745865209, 14181824369, 14904963149, 15002412599, 15412603919 ]
[ "nonn", "easy" ]
A038078
[ 1, 2, 1, 2, 6, 20, 69, 270, 1026, 4120, 16794, 70230, 298306, 1288912, 5642559, 25007756, 111998920, 506348902, 2308338456, 10602357346, 49026021552, 228085486580, 1067020210339, 5016982766202, 23698640081356, 112422573858292, 535414026652828, 2559204304109868 ]
[ "nonn" ]
A347161
[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 1, 1, 10, 1, 1, 10, 1, 1, 10, 1, 1, 10, 1, 1, 10, 1, 1, 35, 1, 1, 10, 1, 26, 10, 1, 1, 10, 26, 1, 10, 1, 1, 35, 1, 1, 10, 1, 26, 10, 1, 1, 10, 26, 50, 10, 1, 1, ...
[ "nonn" ]