id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A059367
[ 1, 2, 13, 146, 2343, 48984 ]
[ "nonn" ]
A349512
[ 1, 2, 6435, 4154246671960, 5.397234129638871e+27, 8.024064865140037e+49, 5.419867062727069e+79 ]
[ "nonn" ]
A080051
[ 89, 680081, 260809, 3146161, 1170641, 123209, 423769, 153689, 156329, 179849, 779489, 403889, 208889, 235289, 246809, 279689, 864169, 2376809, 346649, 728369, 1108489, 372809, 380729, 403289, 458009, 1392649, 488009, 503369, 505049 ]
[ "nonn" ]
A086313
[ 3, 7, 2, 0, 4, 8, 6, 8, 1, 2, 0, 7, 7, 7, 1, 8, 3, 3, 2, 4, 2, 0, 5, 4, 2, 5, 4, 0, 3, 0, 1, 2, 8, 8, 9, 2, 2, 7, 6, 1, 5, 2, 9, 5, 8, 9, 4, 0, 7, 6, 2, 9, 7, 8, 7, 9, 4, 3, 3, 1, 2, 2, 8, 5...
[ "nonn", "cons" ]
A268420
[ 2, 15, 187, 2530, 34195, 448667, 5720450, 71224847, 869969995, 10461568690, 124193817155, 1458609678443, 16976365857602, 196066210076847, 2249518678962747, 25662410911209090, 291308117338854600 ]
[ "nonn" ]
A271342
[ 0, 2, 2, 8, 8, 16, 16, 30, 30, 42, 42, 66, 66, 82, 82, 112, 112, 138, 138, 174, 174, 198, 198, 254, 254, 282, 282, 330, 330, 378, 378, 440, 440, 476, 476, 554, 554, 594, 594, 678, 678, 742, 742, 814, 814, 862, 862, 982, ...
[ "nonn", "easy" ]
A261655
[ 1, 144, 1296, 3600, 176400, 156816, 2985984, 921600, 2702736, 11696400, 18974736, 21566736, 17740944, 5992704, 125888400, 7290000, 8363664, 12027024, 63680400, 210830400, 13838400, 72590400, 15116544, 15397776, 67568400, 128595600, 80784144, 93315600, 33039504...
[ "nonn" ]
A243372
[ 4, 9, 0, 6, 9, 4, 0, 5, 0, 4, 1, 1, 5, 3, 9, 5, 7, 3, 6, 0, 0, 3, 4, 9, 3, 0, 3, 5, 4, 2, 5, 8, 9, 1, 9, 9, 5, 4, 2, 5, 7, 1, 3, 1, 1, 4, 4, 1, 9, 5, 5, 2, 3, 0, 3, 7, 5, 1, 7, 1, 6, 6, 7, 3...
[ "nonn", "cons" ]
A034952
[ 1, -2, -1, 2, -3, 10, 2, -8, -4, -14, 7, 4, 18, -2, -13, 14, 1, 14, -21, -4, -35, -14, 28, -6, 7, 38, 39, -30, 20, -36, -14, 0, 17, 4, -49, 14, -15, -22, -16, 66, -39, -10, 21, 42, 69, 82, -18, -80, -28, -50, 28, -...
[ "sign", "easy" ]
A374115
[ 2, 5, 6, 7, 8, 10, 11, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 26, 28, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 66, 67, 68, 69,...
[ "nonn" ]
A067151
[ 0, 0, 6, 7, 24, 36, 90, 132, 168, 234, 378, 600, 672, 901, 954, 1444, 1580, 2520, 2860, 2990, 3696, 4800, 5070, 6750, 7644, 9309, 7920, 12927, 12896, 15576, 16898, 20475, 18684, 25382, 27246, 30966, 32760, 37064, 37170, 45838, 47300, ...
[ "nonn" ]
A248884
[ 1, 1, 32, 275, 1763, 12421, 85808, 561074, 3535678, 21815897, 131733641, 778099521, 4505634324, 25635135074, 143507764032, 791243636305, 4300983535471, 23070300486656, 122213931799869, 639848848696540, 3312824859756453, 16972058378914996, 86082216143323410 ]
[ "nonn" ]
A305767
[ 32, 1576, 15874, 240701, 3343997, 47791549, 686168124, 9812796379, 140721354959, 2015731961192, 28883610743616, 413862103479629, 5929890697010320, 84967009587871760, 1217440538231235300, 17444057654131554000 ]
[ "nonn" ]
A226083
[ 2, 2, 4, 2, 4, 3, 3, 2, 4, 4, 3, 4, 7, 8, 5, 2, 4, 3, 3, 4, 3, 3, 13, 4, 8, 8, 16, 5, 3, 7, 7, 2, 3, 3, 7, 4, 7, 3, 11, 4, 5, 5, 7, 7, 5, 5, 5, 4, 8, 8, 11, 8, 5, 3, 3, 8, 3, 3, 5, 7, 7, 7, 3,...
[ "nonn", "look" ]
A224345
[ 1, 3, 11, 53, 323, 2359, 19877, 188591, 1981963, 22795849, 284285351, 3815293199, 54762206985, 836280215979, 13527449608779, 230894574439485, 4144741143359355, 78017419806432560, 1535903379571940000, 31550210953904250000 ]
[ "nonn" ]
A158315
[ 1, 3, 3, 3, 6, 3, 3, 9, 3, 3, 9, 3, 6, 10, 3, 3, 9, 9, 3, 9, 3, 3, 18, 3, 6, 9, 3, 9, 9, 3, 3, 18, 9, 3, 9, 3, 3, 18, 9, 3, 15, 3, 9, 9, 3, 9, 9, 9, 3, 18, 3, 3, 27, 3, 3, 9, 3, 9, 18, 9, 6, 9, ...
[ "nonn" ]
A243479
[ 2, 570, 34643, 1139465, 26298831, 479669603, 7386945631, 100099764774, 1227140160022, 13879804132399, 146957303797639, 1472647088474040, 14087369324642004, 129522280702233380, 1150891407181302400, 9927963973481920000, 83454334937159450000 ]
[ "nonn" ]
A008326
[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 5, 4, 1, 1, 1, 13, 14, 4, 1, 1, 1, 38, 129, 41, 7, 1, 1, 1, 149, 1980, 1981, 157, 8, 1, 1, 1, 703, 62611, 304495, 62616, 725, 12, 1, 1, 1, 4132, 2806490, 78322915, 78322916, 2806508, ...
[ "nonn", "hard", "tabl" ]
A211593
[ 17, 61, 189, 537, 1405, 3605, 8909, 22093, 53669, 131917, 319837, 786941, 1915309, 4734125, 11587605, 28797317, 70895933, 177097381, 438296237, 1099734997, 2734106629, 6885392301, 17183667245, 43402287421, 108663538381, 275107471725 ]
[ "nonn" ]
A356142
[ 2, 9, 47, 145, 1037, 469, 4283, 10841, 120529, 145981, 1913231, 2248181, 33938753, 39009533, 44438957, 100454479, 1916734943, 712651981, 15018824599, 662986195, 1213859861, 1327904701, 33283587163, 108432400555, 2934259832467, 3166619637067, 30671014001603, 3292...
[ "nonn", "frac" ]
A022514
[ 3, 31, 1131, 113112, 21123112, 211231211221, 112212211131211220, 1.1221221113113222e+21, 2.111221222311231e+25, 2.111221222311231e+31 ]
[ "nonn", "base", "easy", "nice" ]
A323201
[ 6, 8, 30, 62, 96, 118, 222, 332, 472, 528, 1086, 1388, 1720, 2110, 2726, 4120, 9112, 20120, 24750, 27512, 39332, 50832, 64140, 65668, 86092, 89190, 109500, 226710, 353160, 575902, 728692, 1122510, 3671262 ]
[ "nonn", "more", "hard" ]
A076978
[ 1, 2, 6, 30, 6, 210, 6, 2310, 2730, 30, 39270, 7410, 42, 7590, 46410, 1272810, 30, 930930, 82110, 6, 21111090, 1230, 48969690, 1738215570, 2310, 102, 144690, 6, 85470, 29594505363092670, 16770, 49990710, 138, 7849357706190, 30, 300690390, 20223...
[ "nonn" ]
A083653
[ 0, 1, 2, 1, 4, 2, 1, 3, 8, 4, 10, 2, 3, 1, 3, 7, 16, 8, 4, 9, 18, 10, 21, 2, 7, 3, 9, 1, 3, 5, 7, 15, 32, 16, 8, 17, 36, 4, 9, 19, 34, 18, 10, 10, 37, 21, 2, 6, 15, 7, 3, 12, 19, 9, 21, 1, 7, 3, 19, ...
[ "nonn", "base" ]
A334544
[ 5, 29, 113, 197, 359, 521, 1109, 1733, 4289, 6389, 7349, 8297, 9059, 12821, 35603, 37691, 58787, 59771, 97673, 105767, 130649, 148517, 153749, 180797, 220019, 328127, 402593, 406907, 416693, 542261, 780401, 1138127, 1294367, 1444271, 1463621, 160...
[ "nonn" ]
A209945
[ 258, 4975, 95794, 1845126, 35537484, 684469520, 13183187396, 253914272972, 4890505660356, 94193393412380, 1814208180084540, 34942486067121236, 673008393916430500, 12962452003109036000, 249662802833380930000, 4.808620707521495e+21, 9.261625218829671e+22 ]
[ "nonn" ]
A343932
[ 0, 1, 2, 0, 3, 5, 5, 4, 1, 7, 3, 4, 11, 13, 3, 4, 0, 15, 0, 4, 14, 13, 10, 20, 22, 11, 25, 20, 21, 1, 18, 4, 6, 17, 27, 12, 31, 27, 20, 28, 6, 41, 34, 32, 31, 45, 45, 4, 11, 25, 39, 48, 21, 45, 46, 12, 53...
[ "nonn", "easy" ]
A021252
[ 0, 0, 4, 0, 3, 2, 2, 5, 8, 0, 6, 4, 5, 1, 6, 1, 2, 9, 0, 3, 2, 2, 5, 8, 0, 6, 4, 5, 1, 6, 1, 2, 9, 0, 3, 2, 2, 5, 8, 0, 6, 4, 5, 1, 6, 1, 2, 9, 0, 3, 2, 2, 5, 8, 0, 6, 4, 5, 1, 6, 1, 2, 9, 0...
[ "nonn", "cons", "easy" ]
A172178
[ 1, 100, 199, 298, 397, 496, 595, 694, 793, 892, 991, 1090, 1189, 1288, 1387, 1486, 1585, 1684, 1783, 1882, 1981, 2080, 2179, 2278, 2377, 2476, 2575, 2674, 2773, 2872, 2971, 3070, 3169, 3268, 3367, 3466, 3565, 3664, 3763, 3862, 3961, 4...
[ "nonn", "easy" ]
A143159
[ 1, 0, -1, -1, -3, 1, 1, 3, 2, -2, 5, -1, 1, -2, -4, -2, -3, 2, -7, -2, 4, 7, 0, -1, -1, 0, 4, 10, 5, -7, 7, -3, -6, -3, 0, -1, -5, -6, 3, -7, 1, 5, -5, 1, -4, 1, -9, 7, 2, 16, 2, -2, 8, 2, 5, 2, 5, -11,...
[ "sign" ]
A108047
[ 1, 1, 11, 111, 11111, 11111111, 1111111111111, 111111111111111110000, 1.1111111111111111e+33, 1.1111111111111112e+54, 1.1111111111111112e+88 ]
[ "nonn", "easy", "base" ]
A063847
[ 15841, 29341, 52633, 252601, 314821, 1909001, 3581761, 4335241, 5049001, 5310721, 5444489, 15247621, 29111881, 35703361, 36765901, 38624041, 53711113, 68154001, 99036001, 101649241, 104852881, 115039081, 133800661, 161035057, 172290241, 214852609, 238244041, 299...
[ "nonn" ]
A026677
[ 1, 2, 5, 10, 23, 46, 103, 206, 455, 910, 1993, 3986, 8679, 17358, 37633, 75266, 162643, 325286, 701075, 1402150, 3015563, 6031126, 12948083, 25896166, 55513327, 111026654, 237705547, 475411094, 1016736115, 2033472230 ]
[ "nonn" ]
A101589
[ 0, 3, 7, 12, 15, 43, 438, 607, 1200, 2724, 5209, 59388, 118215, 198528 ]
[ "nonn", "more" ]
A276867
[ 3, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 3, 4, 4, 3, 4, 4, 3, 4, 3, 4...
[ "nonn", "easy", "changed" ]
A379370
[ 1, 2, 6, 3, 15, 30, 210, 105, 35, 70, 770, 1155, 15015, 30030, 2002, 1001, 17017, 102102, 1939938, 4849845, 4849845, 9699690, 223092870, 37182145, 37182145, 74364290, 223092870, 111546435, 3234846615, 2156564410, 66853496710, 33426748355, 100280245065,...
[ "nonn", "easy", "frac" ]
A332998
[ 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 2, 1, 2, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 2, 3, 1, 1, 2, 2, 0, 1, 0, 0, 1, 2, 1, 2, 0, 0, 1, 1, 0, 1, 0, 0, 1, 2, 1, 2, 2, 2, 3, 4, 1, 2, 1, 1, 2, 3, 2, 3...
[ "nonn" ]
A013848
[ 512, 16777216, 549755813888, 18014398509481984, 590295810358705700000, 1.9342813113834067e+25, 6.338253001141147e+29, 2.076918743413931e+34, 6.80564733841877e+38 ]
[ "nonn", "easy" ]
A352938
[ 0, 0, 0, 1, 0, 0, 1, 2, 3, 0, 2, 0, 1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 0, 2, 4, 6, 0, 1, 4, 5, 0, 4, 0, 1, 2, 3, 0, 2, 0, 1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0, 2, 4, 6, 8, ...
[ "nonn", "tabf", "look", "base" ]
A005289
[ 0, 0, 1, 4, 12, 31, 67, 132, 239, 407, 657, 1019, 1523, 2211, 3126, 4323, 5859, 7806, 10236, 13239, 16906, 21346, 26670, 33010, 40498, 49290, 59543, 71438, 85158, 100913, 118913, 139398, 162609, 188817, 218295, 251349, 288285 ]
[ "nonn", "nice", "easy" ]
A375113
[ 1, 3, 2, 6, 4, 10, 5, 14, 8, 7, 15, 11, 21, 9, 20, 12, 27, 13, 34, 18, 16, 28, 17, 35, 23, 22, 36, 29, 45, 19, 43, 24, 44, 30, 54, 25, 53, 31, 64, 26, 63, 32, 75, 33, 87, 41, 37, 55, 38, 65, 39, 76, 40, 88, 4...
[ "nonn" ]
A209683
[ 1, 15, 1551, 14164693, 847881355388, 5219870359015850000, 7.057076253264702e+25, 6.225694410822164e+34, 1.0325607288722909e+44 ]
[ "nonn" ]
A294944
[ 1, 2, 4, 5, 8, 13, 14, 26, 44, 58, 61, 83, 256, 878, 1513, 3122, 6398, 6476, 8683, 18482, 33917, 45937, 64534 ]
[ "nonn", "more", "hard" ]
A192673
[ 1, 1, 2, 4, 9, 19, 42, 92, 203, 453, 1018, 2300, 5224, 11919, 27301, 62750, 144662, 334392, 774802, 1799089, 4185524, 9754468, 22769099, 53225213, 124585182, 291975928, 685044632, 1608962053, 3782645385, 8901012965, 20962890607, 49409138924, 1165430633...
[ "nonn" ]
A074963
[ 1, 7, 13, 31, 42, 91, 96, 127, 195, 234, 234, 403, 403, 480, 576, 744, 744, 847, 847, 1170, 1344, 1344, 1344, 1651, 1860, 1860, 1860, 2240, 2240, 2880, 2880, 3048, 3048, 3048, 3048, 4368, 4368, 4368, 4368, 5040, 5040, 5952, 5952, ...
[ "easy", "nonn" ]
A127940
[ 1, 1, 1, 2, 3, 8, 22, 71, 93, 638, 9144, 26821, 2373690, 11013191, 950468551, 23819080360, 4860600739719, 18887557655957, 23748158395676, 102452785866447, 1153981434332852700, 722919835385951400000 ]
[ "frac", "nonn" ]
A355111
[ 1, 2, 11, 93, 1041, 14541, 243747, 4767183, 106556373, 2679469065, 74864397015, 2300883358995, 77144051804409, 2802027511061325, 109604157405491700, 4593512301562216000, 205348466229473670000, 9.753645833118762e+21, 4.905305767274301e+23, 2.604031790099131e+25 ]
[ "nonn" ]
A006546
[ 1, 2, 2, 3, 3, 4, 2, 8, 3, 4, 6, 8, 6, 8, 4, 10, 6, 14, 2, 18, 6, 4, 14, 18, 7, 12, 12, 22, 6, 8, 6, 31, 12, 12, 14, 28, 8, 28, 12, 18, 22, 8, 10, 26, 17, 28, 6, 50, 11, 36, 12, 18, 22, 28, 12, 44, 16, ...
[ "nonn" ]
A148815
[ 1, 1, 3, 8, 26, 89, 301, 1113, 4103, 15713, 61009, 239022, 957052, 3842957, 15682418, 64327986, 266060448, 1109178457, 4642255214, 19584021301, 82870650100, 352746311724, 1507055476582, 6462776373617, 27830950502522, 120152552294094, 520749391990068, 22620726756...
[ "nonn", "walk" ]
A084360
[ 0, 0, 0, 1, 1, 1, 2, 1, 3, 1, 3, 1, 4, 1, 5, 1, 5, 1, 6, 1, 7, 1, 7, 1, 8, 1, 8, 1, 8, 1, 9, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 12, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 1, 15, 1, 16...
[ "nonn", "easy" ]
A304944
[ 0, 1, 6, 34, 164, 790, 3572, 16212, 71048, 312678, 1345220, 5809980, 24692600, 105305980, 443684360, 1875046120, 7848968208, 32944100998, 137210821092, 572842556332, 2376270786840, 9878362137364, 40842721771544, 169192718317336, 697620779210096 ]
[ "nonn" ]
A117807
[ 1015, 5105, 5019, 9109, 9023, 3213, 3127, 7217, 7131, 1321, 1235, 5325, 5239, 9329, 9243, 3433, 3347, 7437, 7351, 1541, 1455, 5545, 5459, 9549, 9463, 3653, 3567, 7657, 7571, 1761, 1675, 5765, 5679, 9769, 9683, 3873, 3787, 7877, 7791, 1981...
[ "nonn", "base" ]
A371833
[ 12343, 12347, 22343, 22349, 32341, 42349, 62347, 72341, 82349, 92347, 123401, 123407, 123419, 123427, 123433, 123439, 123449, 123457, 123479, 123491, 123493, 123499, 223403, 223423, 223429, 223439, 223441, 223463, 223469, 223481, 223493, 323413, 323419...
[ "nonn", "base" ]
A178449
[ 1, 744, -196884, 167975456, -180592706130, 217940004309743, -19517553165954890, 74085136650518740, -131326907606533200 ]
[ "sign", "more" ]
A049352
[ 1, 4, 1, 20, 12, 1, 120, 128, 24, 1, 840, 1400, 440, 40, 1, 6720, 16240, 7560, 1120, 60, 1, 60480, 201600, 129640, 27720, 2380, 84, 1, 604800, 2681280, 2275840, 656320, 80080, 4480, 112, 1, 6652800, 38142720, 41370560, 15402240, 2498160...
[ "easy", "nonn", "tabl" ]
A201942
[ 1, 3, 0, 9, 7, 9, 9, 5, 8, 5, 8, 0, 4, 1, 5, 0, 4, 7, 7, 6, 6, 9, 2, 3, 3, 7, 0, 1, 9, 6, 8, 1, 7, 2, 5, 0, 6, 0, 1, 0, 8, 6, 8, 8, 9, 6, 4, 3, 0, 4, 8, 0, 4, 3, 5, 5, 5, 8, 4, 7, 5, 3, 6, 7...
[ "nonn", "cons" ]
A201439
[ 1, 1, 1, 1, 3, 3, 1, 3, 5, 1, 1, 5, 15, 15, 5, 1, 5, 21, 29, 21, 9, 1, 7, 27, 75, 55, 37, 5, 1, 7, 47, 115, 111, 167, 39, 3, 1, 9, 57, 217, 479, 527, 295, 65, 5, 1, 9, 67, 297, 837, 1341, 1275, 647, 107, 3, ...
[ "nonn", "tabl" ]
A042655
[ 1, 3, 4, 7, 11, 40, 51, 346, 397, 743, 4855, 5598, 21649, 27247, 48896, 76143, 277325, 16160993, 48760304, 64921297, 113681601, 178602898, 649490295, 828093193, 5618049453, 6446142646, 12064192099, 78831295240, 90895487339, 351517757257, 442413244596 ]
[ "nonn", "frac", "easy" ]
A386378
[ 30, 62, 90, 174, 238, 357, 390, 440, 495, 552, 762, 870, 894, 924, 1056, 1146, 1248, 1386, 1560, 1740, 1770, 1782, 1824, 1880, 1938, 1992, 2046, 2208, 2262, 2472, 2568, 2625, 2670, 2686, 2730, 2840, 2856, 3000, 3190, 3382, 3630, 3666,...
[ "nonn" ]
A367397
[ 4, 12, 18, 30, 36, 40, 42, 54, 60, 66, 78, 81, 90, 100, 102, 112, 114, 120, 126, 135, 138, 140, 150, 168, 174, 180, 186, 189, 198, 210, 220, 222, 225, 234, 246, 250, 252, 258, 260, 270, 280, 282, 297, 300, 306, 315, 318, 3...
[ "nonn" ]
A163955
[ 1, 11, 110, 1100, 11000, 110000, 1099945, 10998900, 109983555, 1099781100, 10997266500, 109967220000, 1099617752970, 10995633086625, 109950886704780, 1099454428128375, 10993999919042250, 109934555837535000 ]
[ "nonn" ]
A237453
[ 0, 0, 1, 0, 2, 1, 1, 2, 3, 1, 1, 1, 1, 2, 3, 2, 2, 2, 2, 3, 2, 1, 2, 1, 2, 3, 3, 2, 3, 1, 1, 1, 3, 2, 4, 3, 3, 3, 2, 1, 2, 1, 1, 3, 3, 1, 2, 3, 3, 3, 4, 3, 3, 2, 2, 6, 4, 3, 5, 3, 2, 3, 2, 4...
[ "nonn" ]
A246514
[ 0, 1, 3, 4, 7, 9, 12, 14, 17, 22, 23, 27, 31, 33, 37, 41, 45, 48, 53, 56, 59, 63, 67, 72, 77, 80, 83, 87, 90, 94, 103, 107, 111, 113, 121, 124, 128, 134, 138, 144, 148, 150, 158, 160, 164, 166, 175, 184, 188, 190, 19...
[ "nonn", "easy" ]
A246471
[ 2, 2, 2, 4058471, 462807341 ]
[ "nonn", "hard", "more" ]
A189982
[ 420, 630, 660, 780, 924, 990, 1020, 1050, 1092, 1140, 1170, 1380, 1386, 1428, 1470, 1530, 1540, 1596, 1638, 1650, 1710, 1716, 1740, 1820, 1860, 1932, 1950, 2070, 2142, 2220, 2244, 2380, 2394, 2436, 2460, 2508, 2550, 2574, 2580, 2604, 26...
[ "nonn" ]
A072986
[ 1, 2, 6, 11, 24, 52, 113, 248, 553, 1245, 2828, 6481, 14963, 34770, 81253, 190836, 450202, 1066269, 2534269, 6042375, 14447465, 34632759, 83212840, 200360193, 483361096, 1168159015, 2827750519 ]
[ "nonn", "more" ]
A286756
[ 1, 1, 1, 2, 2, 2, 1, 1, 3, 4, 6, 6, 3, 1, 1, 3, 5, 8, 11, 13, 13, 8, 2, 0, 1, 3, 6, 10, 16, 24, 31, 32, 23, 11, 3, 0, 1, 3, 6, 11, 18, 29, 43, 58, 72, 71, 47, 19, 5, 1, 0, 1, 3, 6, 12, 20, 34, 55, 83,...
[ "nonn", "tabf" ]
A259203
[ 1, 4, 12, 46, 178, 964, 4690, 42508, 285442, 2015524, 34230250, 201756988, 2251838962, 46808034004, 448004334970, 4600225964908, 96261481920322, 1498439279348164, 31186483536041290, 347205448551061440, 3507621455861824500, 206046694871148630000, 4.533026667477586e+21 ]
[ "nonn" ]
A016059
[ 2, 6, 18, 42, 69, 126, 207, 378, 621, 906, 1311, 1863, 2718, 3825, 4509, 5589, 8154, 11475, 13527, 16767, 20130, 24909, 30894, 36078, 40581, 50301, 60390, 72675, 85671, 92682, 107910, 118503, 121743, 150903 ]
[ "nonn" ]
A277010
[ 0, 1, 2, 4, 5, 8, 9, 16, 32, 17, 10, 64, 128, 18, 33, 256, 65, 512, 21, 1024, 34, 129, 20, 2048, 257, 66, 4096, 37, 8192, 513, 16384, 130, 32768, 36, 258, 1025, 65536, 131072, 2049, 68, 69, 262144, 514, 41, 524288, 1048576, ...
[ "nonn" ]
A265378
[ 4, 8, 10, 11, 14, 17, 20, 22, 29, 32, 44, 56, 61, 173, 202, 211, 215, 241, 388, 410, 416, 569, 583, 680, 823, 964, 1271, 1732, 2309, 2335, 2404, 2765, 3019, 3047, 4670, 5209, 6320, 6817, 7531, 9923, 11243, 14912, 17969, 21193, 2...
[ "nonn", "more" ]
A268627
[ 768, 29646, 982086, 30553014, 915847266, 26758514760, 767057092212, 21665715966234, 604770363515718, 16719464029955466, 458539471622171260, 12491032205839395000, 338309651358216550000, 9.117289065936178e+21 ]
[ "nonn" ]
A237067
[ 81, 255, 255, 826, 1101, 826, 2823, 5034, 5034, 2823, 9815, 25451, 32336, 25451, 9815, 34996, 132095, 243256, 243256, 132095, 34996, 125469, 723774, 1812742, 2913981, 1812742, 723774, 125469, 457125, 3983941, 15086720, 33501807, 33501807 ]
[ "nonn", "tabl" ]
A117451
[ 1, 0, 1, 1, 1, 3, 2, 3, 3, 3, 5, 4, 5, 5, 5, 7, 6, 7, 7, 7, 9, 8, 9, 9, 9, 11, 10, 11, 11, 11, 13, 12, 13, 13, 13, 15, 14, 15, 15, 15, 17, 16, 17, 17, 17, 19, 18, 19, 19, 19, 21, 20, 21, 21, 21, 23, 22, ...
[ "easy", "nonn" ]
A380279
[ 1, 7, 21, 43, 73, 111, 160, 211, 273, 343, 421, 507, 577, 600, 758, 842, 872, 960, 1060, 1086, 1191, 1370, 1521, 1641, 1807, 1937, 1980, 2210, 2353, 2400, 2551, 2760, 2973, 3193, 3423, 3661, 3907, 4161, 4423, 4693, 4971, 5257, 5551,...
[ "nonn" ]
A150340
[ 1, 2, 7, 23, 88, 338, 1366, 5593, 23464, 99715, 429069, 1863567, 8165501, 36041316, 160061446, 714566337, 3205536363, 14441835139, 65311558665, 296338140683, 1348690796753, 6155350757000, 28164237220570, 129160967770829, 593577114799665, 2733219311301580, 12608404...
[ "nonn", "walk" ]
A101062
[ 0, 1, 3, 4, 7, 9, 21, 222, 253, 349, 378, 400, 435, 1153, 1245, 2052, 2686, 3724, 4270, 13095, 21426, 30265, 36790, 41758 ]
[ "nonn", "hard", "more" ]
A284233
[ 0, 0, 3, 0, 5, 3, 7, 0, 12, 5, 11, 3, 13, 7, 8, 0, 17, 12, 19, 5, 10, 11, 23, 3, 30, 13, 39, 7, 29, 8, 31, 0, 14, 17, 12, 12, 37, 19, 16, 5, 41, 10, 43, 11, 17, 23, 47, 3, 56, 30, 20, 13, 53, 39, 16, 7, 2...
[ "nonn", "easy" ]
A103115
[ -1, -1, 11, 35, 71, 119, 179, 251, 335, 431, 539, 659, 791, 935, 1091, 1259, 1439, 1631, 1835, 2051, 2279, 2519, 2771, 3035, 3311, 3599, 3899, 4211, 4535, 4871, 5219, 5579, 5951, 6335, 6731, 7139, 7559, 7991, 8435, 8891, 9359, 9839, ...
[ "easy", "sign" ]
A268557
[ 2, 32, 1344, 99840, 11034624, 1646100480, 311739678720, 71904311377920, 19608902534430720, 6183679018118676000, 2.2165375356946612e+21, 8.908481693438498e+23, 3.970154741168448e+26, 1.9439734775974237e+29, 1.0377485519039066e+32 ]
[ "nonn" ]
A183099
[ 0, 0, 0, 4, 0, 0, 0, 12, 9, 0, 0, 4, 0, 0, 0, 28, 0, 9, 0, 4, 0, 0, 0, 12, 25, 0, 36, 4, 0, 0, 0, 60, 0, 0, 0, 49, 0, 0, 0, 12, 0, 0, 0, 4, 9, 0, 0, 28, 49, 25, 0, 4, 0, 36, 0, 12, 0, 0, 0, 4, 0, ...
[ "nonn", "easy" ]
A120009
[ 1, 1, 1, 0, -6, -33, -143, -572, -2210, -8398, -31654, -118864, -445740, -1671525, -6273135, -23571780, -88704330, -334347090, -1262330850, -4773905760, -18083762580, -68611922730, -260725306374, -992233959480, -3781513867796, -14431491699548, -55147299002348 ]
[ "sign", "easy" ]
A248382
[ 1, 4, 83, 556, 11124, 266944 ]
[ "nonn", "more" ]
A040924
[ 30, 1, 9, 3, 6, 1, 1, 5, 12, 5, 1, 1, 6, 3, 9, 1, 60, 1, 9, 3, 6, 1, 1, 5, 12, 5, 1, 1, 6, 3, 9, 1, 60, 1, 9, 3, 6, 1, 1, 5, 12, 5, 1, 1, 6, 3, 9, 1, 60, 1, 9, 3, 6, 1, 1, 5, 12, 5, 1, 1, 6, 3, ...
[ "nonn", "cofr", "easy" ]
A302461
[ 4, 2, 18, 8, 44, 56, 140, 364, 764, 2352, 5612, 16144, 42324, 116260, 314408, 853216, 2319700, 6290064, 17095288, 46394920, 126019004, 342168972, 929215108, 2523394628, 6852508984, 18609263140, 50535852808, 137239321084, 372695225548 ]
[ "nonn" ]
A306774
[ 6, 3, 8, 9, 0, 6, 1, 6, 2, 6, 1, 6, 2, 7, 4, 0, 9, 1, 2, 0, 6, 3, 9, 8, 2, 7, 8, 1, 4, 1, 1, 1, 7, 4, 9, 8, 8, 2, 8, 4, 3, 8, 9, 1, 3, 1, 3, 5, 1, 1, 5, 9, 8, 3, 5, 1, 8, 5, 5, 4, 5, 4, 5, 0...
[ "nonn", "cons" ]
A280303
[ 1, 2, 3, 5, 7, 12, 17, 31, 51, 91, 155, 287, 505, 930, 1695, 3129, 5759, 10724, 19913, 37239, 69643, 130745, 245715, 463099, 873705, 1651838, 3126707, 5927817, 11251031, 21382558, 40679233, 77475673, 147694719, 281822847, 538213671, 1028714071, ...
[ "nonn", "changed" ]
A225414
[ 3, 22, 49, 69, 156, 187, 190, 295, 465, 498, 594, 777, 880, 931, 1144, 1269, 1330, 1501, 1611, 1633, 2190, 2272, 2494, 2619, 2655, 2893, 3475, 3732, 3937, 4182, 4524, 4719, 4900, 5502, 5635, 5866, 6490, 7021, 7185, 7719, 7761, 7828, ...
[ "nonn" ]
A313730
[ 1, 5, 10, 15, 20, 25, 29, 34, 39, 44, 49, 54, 59, 64, 69, 74, 79, 83, 88, 93, 98, 103, 108, 113, 118, 123, 128, 133, 137, 142, 147, 152, 157, 162, 167, 172, 177, 182, 187, 191, 196, 201, 206, 211, 216, 221, 226, 231, 236...
[ "nonn" ]
A113763
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 5...
[ "nonn", "easy" ]
A152415
[ 2, 4, 6, 10, 15, 21, 26, 33, 40, 50, 57, 69, 79, 93, 106, 116, 129, 145, 158, 172, 193, 212, 232, 254, 277, 298, 320, 340, 367, 397, 420, 443, 474, 501, 534, 562, 593, 629, 666, 692, 727, 760, 795, 833, 869, 901, 937, 980,...
[ "nonn" ]
A018149
[ 1, 2, 3, 5, 8, 12, 20, 33, 54, 88, 144, 237, 390, 640, 1052, 1728, 2841, 4669, 7675, 12616, 20736, 34085, 56028, 92095, 151381, 248832, 409019, 672325, 1105135, 1816567, 2985984, 4908217, 8067891 ]
[ "nonn" ]
A043074
[ 1, 4, 28, 29, 30, 31, 32, 33, 34, 35, 36, 244, 254, 264, 274, 284, 294, 304, 314, 324, 2188, 2197, 2206, 2215, 2224, 2233, 2242, 2251, 2260, 2270, 2279, 2288, 2297, 2306, 2315, 2324, 2333, 2342, 2352, 2361, 2370, 2379, 2388, 2397 ...
[ "nonn", "base" ]
A090875
[ 1, 1, 1, 1, 1, 2321204055, 37185086099807 ]
[ "nonn" ]
A190194
[ 0, 1, 4, 20, 116, 776, 5912, 50648, 482552, 5065016, 58099832, 723315128, 9715154552, 140051879096, 2157103991672, 35355232693688, 614453167841912, 11287370521073336, 218535622980161920, 4447889360078674000, 94944254697268020000, 2.1209840327940613e+21, 4.948916084895481e...
[ "nonn" ]
A339574
[ 1, 2, 4, 6, 10, 16, 18, 22, 38, 44, 46, 56, 94, 112, 138, 140, 168, 184, 296, 342, 364, 366, 370, 476, 520, 862, 908, 954, 1042, 1052, 1102, 1146, 1522, 2008, 2182, 2200, 2270, 2592, 2630, 2952, 4960, 5100, 5328, 6054, 6992, 6...
[ "nonn", "tabl" ]
A345709
[ 1, 2, 3, 5, 6, 25, 9, 10, 21, 55, 12, 11, 15, 22, 27, 77, 18, 7, 33, 14, 39, 35, 24, 49, 45, 28, 51, 91, 30, 13, 57, 26, 19, 65, 38, 75, 133, 20, 63, 85, 36, 17, 69, 34, 23, 119, 46, 105, 253, 40, 99, 95, 42, 1...
[ "nonn" ]
A044853
[ 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 144, 156, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 170, 183, 196, 209, 222, 235, 248, 261, 274, 287, 288, 301, 312, 313, 315, 316, 317, 318, 319, 320, 321, 322, 323, 3...
[ "nonn", "base" ]
A115947
[ 1, 1, 2, 4, 6, 6, 9, 12, 18, 24, 25, 25, 48, 50, 64, 75, 91, 100, 120, 168, 169, 240, 273, 306, 320, 360, 441, 550, 588, 728, 910, 979, 1156, 1224, 1365, 1365, 1728, 2184, 2352, 2475, 3025, 3029, 4410, 4704, 4895, 5278, 5712...
[ "nonn" ]
A244855
[ 0, 0, 15, 80, 624, 4095, 28560, 194480, 1336335, 9150624, 62742240, 429981695, 2947295520, 20200652640, 138458409999, 949005240560, 6504586067280, 44583076827135, 305577005139120, 2094455819300624, 14355614096087056, 98394841894789440, 674408281676875300 ]
[ "nonn", "easy" ]