id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A037980
[ 0, 1, 4, 109, 800, 19501, 168952, 3979830, 37566720, 862687045, 8615396504, 193710517650, 2015475061184, 44516469004294, 478043160040240, 10399216983867484, 114539008771344380, 2459029841101222400, 27657033766735100000, 586949749681986700000, 6.719200545824895e+21, 1.4114709781286018e+23 ]
[ "nonn", "easy" ]
A151680
[ 0, 1, 2, 2, 2, 4, 5, 3, 2, 4, 5, 5, 7, 10, 9, 4, 2, 4, 5, 5, 7, 10, 9, 6, 7, 10, 11, 13, 18, 20, 14, 5, 2, 4, 5, 5, 7, 10, 9, 6, 7, 10, 11, 13, 18, 20, 14, 7, 7, 10, 11, 13, 18, 20, 16, 14, 18, 22, 25, 32, 39, 35, 20, 6, 2, 4, 5, 5, 7, 10, 9, 6, 7, 10, 11, 13, 18, 20, 14, 7, 7, 10, 11, 13, 18 ]
[ "nonn" ]
A372626
[ 1, -1, 1, 0, 1, -2, 1, 0, 2, -2, 1, -1, 1, -2, 2, 0, 1, -3, 1, 0, 2, -2, 1, -1, 2, -2, 2, 0, 1, -4, 1, 0, 2, -2, 2, 1, 1, -2, 2, -1, 1, -5, 1, 0, 3, -2, 1, 1, 2, -3, 2, 0, 1, -5, 2, -1, 2, -2, 1, 0, 1, -2, 3, 0, 2, -5, 1, 0, 2, -4, 1, 1, 1, -2, 3, 0, 2, -5, 1, -1 ]
[ "sign" ]
A341120
[ 0, 0, 1, 2, 2, 3, 3, 3, 2, 3, 3, 3, 2, 2, 1, 0, 0, 1, 1, 1, 0, 0, 1, 2, 2, 2, 3, 4, 4, 3, 3, 3, 4, 5, 5, 5, 4, 4, 5, 6, 6, 6, 7, 8, 8, 7, 7, 7, 8, 8, 7, 6, 6, 5, 5, 5, 6, 5, 5, 5, 6, 6, 7, 8, 8, 9, 9, 9, 8, 8, 9, 10, 10, 10, 11, 12, 12, 11, 11, 11, 12, 12, 13 ]
[ "nonn" ]
A144529
[ 0, 0, 1, 0, 1, 2, 0, 2, 5, 6, 0, 2, 9, 13, 14, 0, 3, 18, 32, 36, 37, 0, 3, 28, 67, 82, 87, 88 ]
[ "nonn", "tabl", "more" ]
A124492
[ 2, 2, 2, 3, 3, 77385, 1447110, 1447110, 203937090, 107290072890, 4724240531010, 123618251967210, 1272603355923900, 9089306184994125000 ]
[ "nonn", "more" ]
A021941
[ 0, 0, 1, 0, 6, 7, 2, 3, 5, 8, 5, 9, 1, 2, 4, 8, 6, 6, 5, 9, 5, 5, 1, 7, 6, 0, 9, 3, 9, 1, 6, 7, 5, 5, 6, 0, 2, 9, 8, 8, 2, 6, 0, 4, 0, 5, 5, 4, 9, 6, 2, 6, 4, 6, 7, 4, 4, 9, 3, 0, 6, 2, 9, 6, 6, 9, 1, 5, 6, 8, 8, 3, 6, 7, 1, 2, 9, 1, 3, 5, 5, 3, 8, 9, 5, 4, 1, 0, 8, 8, 5, 8, 0, 5, 7, 6, 3, 0, 7 ]
[ "nonn", "cons", "easy" ]
A139753
[ 1, 8, 9, 27, 36, 64, 81, 125, 144, 216, 225, 343, 361, 512, 529, 729, 784, 1000, 1024, 1331, 1369, 1728, 1764, 2197, 2209, 2744, 2809, 3375, 3481, 4096, 4225, 4913, 5041, 5832, 5929, 6859, 6889, 8000, 8100, 9261, 9409, 10648, 10816, 12167, 12321, 13824 ]
[ "nonn" ]
A104739
[ 1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 19, 20, 23, 24, 27, 31, 32, 35, 38, 43, 44, 47, 48, 51, 56, 60, 62, 64, 70, 71, 75, 80, 83, 87, 88, 91, 96, 103, 107, 110, 111, 115, 123, 124, 127, 135, 139, 140, 147, 148, 152, 163, 164, 166, 174, 179, 180, 184, 188, 192 ]
[ "nonn" ]
A261160
[ 2, 1, 0, 100, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61, 10, 62, 20, 63, 110, 64, 65, 30, 66, 67, 120, 68, 69, 71, 40, 72, 73, 74, 130, 75, 76, 77, 78, 50 ]
[ "nonn", "base" ]
A306484
[ 1, 1, 4, 8, 24, 47, 129, 255, 641, 1308, 3064, 6225, 14286, 28792, 63571, 129240, 278329, 561044, 1190501, 2387695, 4987250, 9976529, 20536591, 40879937, 83416195, 165182927, 333581057, 658385847, 1318764282, 2590568669, 5154370637, 10082762399, 19929958391, 38848175389, 76331335061, 148233818041 ]
[ "nonn" ]
A173984
[ 1, 1, 16, 784, 19600, 3312400, 52998400, 19132422400, 2315023110400, 57875577760000, 57875577760000, 55618430227360000, 16073726335707040000, 2.2004931353582936e+22, 2.2004931353582936e+22 ]
[ "frac", "nonn" ]
A007608
[ 0, 1, 2, 3, 130, 131, 132, 133, 120, 121, 122, 123, 110, 111, 112, 113, 100, 101, 102, 103, 230, 231, 232, 233, 220, 221, 222, 223, 210, 211, 212, 213, 200, 201, 202, 203, 330, 331, 332, 333, 320, 321, 322, 323, 310, 311, 312, 313, 300, 301, 302, 303, 13030 ]
[ "base", "nice", "easy", "nonn" ]
A375040
[ 1, 2, 1, 3, 1, 2, 1, 4, 2, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 3, 1, 2, 1, 4, 2, 2, 3, 3, 1, 2, 1, 6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 2, 2, 1, 5, 2, 2, 1, 3, 1, 3, 1, 4, 1, 2, 1, 3, 1, 2, 2, 7, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 2, 3, 1, 2, 1, 5, 4, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 6, 1, 2, 2, 3, 1, 2, 1, 4, 1 ]
[ "nonn", "easy" ]
A336342
[ 1, 1, 2, 7, 11, 29, 81, 155, 312, 708, 1950, 3384, 7729, 14929, 32407, 81708, 151429, 305899, 623713, 1234736, 2463743, 6208978, 10732222, 22487671, 43000345, 86573952, 160595426, 324990308, 744946690, 1336552491, 2629260284, 5050032692, 9681365777 ]
[ "nonn" ]
A368177
[ 0, 1, 7, 47, 402, 4569, 65298, 1119789, 22397112, 511972065, 13166163630, 376208954109, 11824734538620, 405454640476833, 15061050695642994, 602494304797738900, 25823425094211473000, 1.1806018697749442e+21, 5.734849533007531e+22 ]
[ "nonn", "easy" ]
A023621
[ 1, 6, 17, 37, 74, 136, 239, 409, 686, 1139, 1874, 3066, 4999, 8129, 13196, 21398, 34671, 56152, 90911, 147155, 238163, 385419, 623689, 1009220, 1633025, 2642367, 4275519, 6918017 ]
[ "nonn" ]
A260342
[ 1, 2, 3, 2, 1, 2, 2, 2, 2, 1, 2, 3, 2, 2, 2, 2, 2, 3, 2, 6, 2, 2, 1, 2, 2, 2, 2, 2, 2, 4 ]
[ "nonn" ]
A284477
[ 7, 3, 18, 8, 117, 43, 239, 5, 378, 132, 843, 377, 2207, 987, 2943, 73, 4443, 53, 4662, 1568, 6072, 5118, 8307, 743, 8708, 2112, 9872, 2738, 31561, 4929, 103682, 46368, 271443, 121393, 853932, 76378, 1021693, 91383, 3539232, 41218, 3699356, 473654 ]
[ "nonn" ]
A243764
[ -1, 1, 3, 4, 13, 36, 122, 408, 1453, 5236, 19374, 72616, 276194, 1061416, 4119060, 16112944, 63485565, 251700308, 1003515878, 4020985608, 16184539030, 65409684984, 265338949740, 1080038134352, 4409974794962, 18058663921992, 74146961705356, 305193422510224 ]
[ "sign" ]
A343879
[ 0, 0, 0, 1, 0, 2, 0, 3, 1, 2, 0, 7, 0, 2, 2, 6, 0, 7, 0, 7, 2, 2, 0, 15, 1, 2, 3, 7, 0, 12, 0, 10, 2, 2, 2, 19, 0, 2, 2, 15, 0, 12, 0, 7, 7, 2, 0, 26, 1, 7, 2, 7, 0, 15, 2, 15, 2, 2, 0, 31, 0, 2, 7, 15, 2, 12, 0, 7, 2, 12, 0, 37, 0, 2, 7, 7, 2, 12, 0, 26, 6, 2, 0, 31, 2, 2, 2, 15 ]
[ "nonn" ]
A152076
[ 2, 3, 5, 5, 11, 11, 17, 17, 23, 29, 31, 31, 41, 41, 47, 53, 59, 61, 61, 71, 73, 73, 83, 83, 79, 101, 101, 107, 107, 113, 109, 131, 137, 139, 149, 151, 157, 157, 167, 173, 179, 181, 191, 191, 197, 197, 197, 197, 227, 227, 233, 239, 241, 251, 257, 263, 269, 271, 271 ]
[ "nonn" ]
A361299
[ 1, 2, 3, 4, 5, 7, 9, 8, 11, 10, 13, 6, 15, 12, 17, 14, 19, 16, 23, 18, 25, 20, 29, 22, 21, 24, 31, 26, 37, 28, 35, 32, 41, 34, 43, 27, 33, 36, 47, 44, 39, 38, 49, 40, 53, 46, 59, 30, 51, 50, 61, 55, 67, 58, 71, 52, 45, 56, 73, 62, 65, 64, 79, 42, 77, 48, 83 ]
[ "nonn" ]
A282900
[ 2, 3, 2, 2, 3, 2, 5, 2, 4, 2, 2, 3, 2, 7, 5, 2, 2, 3, 2, 2, 3, 5, 2, 2, 3, 2, 3, 2, 4, 7, 3, 2, 2, 2, 2, 3, 11, 2, 3, 2, 2, 2, 7, 2, 5, 3, 2, 4, 3, 2, 13, 3, 2, 5, 2, 2, 2, 2, 2, 3 ]
[ "nonn" ]
A081730
[ 1, 2, 3, 4, 5, 7, 8, 11, 13, 15, 16, 17, 19, 23, 29, 31, 32, 37, 41, 43, 47, 53, 59, 61, 64, 67, 71, 73, 79, 83, 89, 91, 97, 101, 103, 107, 109, 113, 127, 128, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241 ]
[ "nonn" ]
A035503
[ 32, 130, 193, 263, 302, 320, 368, 392, 566, 623, 638, 656, 913, 932, 1030, 1093, 1115, 1122, 1152, 1185, 1212, 1222, 1258, 1275, 1300, 1333, 1448, 1475, 1512, 1528, 1575, 1582, 1725, 1745, 1755, 1772, 1785, 1815, 1852, 1875, 1881, 1882, 1903, 1930, 2063 ]
[ "nonn", "easy", "base" ]
A260028
[ 8, 1000, 1111101000, 1.0000100011101e+30 ]
[ "nonn", "base" ]
A116766
[ 1, 2, 6, 21, 71, 200, 465, 929, 1667, 2766, 4325, 6455, 9279, 12932, 17561, 23325, 30395, 38954, 49197, 61331, 75575, 92160, 111329, 133337, 158451, 186950, 219125, 255279, 295727, 340796, 390825, 446165, 507179, 574242, 647741, 728075, 815655, 910904, 1014257, 1126161 ]
[ "nonn", "easy", "changed" ]
A250059
[ 21, 735, 21, 7224, 1299, 21, 40320, 18966, 2292, 21, 160545, 142170, 50028, 4030, 21, 509691, 715155, 505154, 132054, 7054, 21, 1375080, 2753061, 3213429, 1800040, 348066, 12284, 21, 3281544, 8746524, 15002490, 14492075, 6415638, 915064, 21276 ]
[ "nonn", "tabl" ]
A248548
[ 2491, 3616, 4385, 4450, 4783, 4982, 7232, 7473, 7974, 8770, 8900, 9566, 9964, 10848, 11784, 12455, 12503, 13155, 13350, 13565, 14086, 14141, 14349, 14464, 14778, 14946, 15948, 16389, 17394, 17437, 17540, 17800, 18080, 19132, 19453, 19928, 21696, 21925, 22250, 22419, 22821, 23568, 23915, 23922, 24079 ]
[ "nonn" ]
A368192
[ 11, 303, 4688, 63915, 834498, 10702179, 136354380, 1736343975, 22177076066, 284685012897, 3676879664312, 47798333570337, 625348433657826, 8230570229973093, 108913174529029100, 1448044422734741200, 19330246935705494000, 258919479492443540000, 3.4778262276073083e+21, 4.682119864636624e+22 ]
[ "nonn", "easy" ]
A036141
[ 1, 6, 36, 107, 97, 37, 4, 24, 35, 101, 61, 39, 16, 96, 31, 77, 26, 47, 64, 57, 15, 90, 104, 79, 38, 10, 60, 33, 89, 98, 43, 40, 22, 23, 29, 65, 63, 51, 88, 92, 7, 42, 34, 95, 25, 41, 28, 59, 27, 53, 100, 55, 3, 18, 108 ]
[ "nonn", "easy" ]
A353657
[ 0, -1, 0, 1, -1, 0, 2, -1, 0, 1, 1, 0, -1, 0, 0, 0, -1, 2, 1, 0, -1, -1, 1, -1, -2, 1, 0, -2, 2, 1, 1, 0, 0, -1, -1, -1, 0, -1, -1, 0, -1, 1, 0, -1, -1, 0, 2, 1, 2, 1, 1, 0, 0, -1, -1, -1, -1, -1, -1, 1, 0, -2, 0, 0, -1, -2, 0, 1, 0, 0, 0, 1, -2, -1, 0, 2, 2 ]
[ "sign" ]
A336111
[ 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 3, 1, 1, 0, 1, 4, 2, 0, 2, 0, 0, 1, 2, 3, 1, 1, 0, 1, 0, 1, 0, 6, 4, 0, 0, 1, 0, 0, 1, 7, 3, 4, 5, 1, 3, 1, 1, 0, 1, 6, 0, 0, 3, 0, 3, 0, 0, 0, 0, 1, 9, 7, 4, 5, 1, 1, 1, 1, 1, 1, 0, 1, 4, 9, 6, 2, 0, 0, 4, 4, 0, 2, 0, 0 ]
[ "nonn", "tabl" ]
A307058
[ 1, 1, 1, 2, 4, 7, 12, 21, 38, 68, 120, 212, 377, 670, 1188, 2107, 3740, 6638, 11778, 20898, 37084, 65808, 116775, 207212, 367696, 652478, 1157815, 2054524, 3645730, 6469316, 11479734, 20370656, 36147506, 64143372, 113821732, 201975429, 358403220, 635982680, 1128544452, 2002589998 ]
[ "nonn" ]
A324225
[ 1, 1, 2, 1, 2, 4, 6, 4, 2, 6, 12, 18, 24, 18, 12, 6, 24, 48, 72, 96, 120, 96, 72, 48, 24, 120, 240, 360, 480, 600, 720, 600, 480, 360, 240, 120, 720, 1440, 2160, 2880, 3600, 4320, 5040, 4320, 3600, 2880, 2160, 1440, 720, 5040, 10080, 15120, 20160, 25200, 30240, 35280, 40320, 35280, 30240, 25200, 20160, 15120, 10080, 5040 ]
[ "nonn", "look", "tabf" ]
A023856
[ 2, 3, 10, 13, 28, 34, 60, 70, 110, 125, 182, 203, 280, 308, 408, 444, 570, 615, 770, 825, 1012, 1078, 1300, 1378, 1638, 1729, 2030, 2135, 2480, 2600, 2992, 3128, 3570, 3723, 4218, 4389, 4940, 5130, 5740, 5950, 6622, 6853, 7590, 7843, 8648, 8924, 9800, 10100, 11050, 11375 ]
[ "nonn", "easy" ]
A244638
[ 2, 3, 7, 19, 31, 41, 73, 97, 193, 257, 313, 487, 859, 937, 1249, 2539, 3331, 3947, 5351, 5839, 7963, 9257, 12343, 21943, 31687, 45127, 60169, 78791, 115547, 180463, 213881, 234239, 270271, 376603, 875681, 1023871, 1252663, 1564063, 2585279, 4063723, 5649499, 9973919, 11200681, 39824647, 41464303, 73583071, 95592191, 226588897, 1359533387, 2263333321, 3349304527 ]
[ "nonn" ]
A339227
[ 0, 3, 22, 146, 970, 6601, 46012, 328188, 2387498, 17666752, 132631060, 1008068661, 7743145556, 60019505338, 468911161556, 3688746483355, 29194239490432, 232297608127077, 1857240493924050, 14912570002666430, 120202700216204320, 972289121546949200 ]
[ "nonn" ]
A379698
[ 0, 1, 2, 1, 3, 2, 4, 1, 2, 3, 2, 1, 5, 2, 3, 1, 4, 1, 3, 2, 6, 1, 3, 1, 4, 2, 3, 1, 5, 2, 3, 2, 4, 3, 1, 7, 2, 2, 4, 1, 2, 5, 1, 3, 4, 2, 6, 2, 1, 3, 2, 4, 1, 3, 2, 5, 2, 1, 4, 2, 8, 2, 3, 1, 4, 2, 3, 5, 1, 2, 4, 1, 2, 3, 6, 2, 1, 4, 2, 1, 2, 5, 3, 2, 4, 1, 2, 7, 1, 3, 2, 4, 3, 1, 5, 2, 4, 3, 6, 1, 3, 2, 1, 4, 2, 2, 5, 1, 4, 2, 3, 1, 9, 3, 1, 4, 2, 2, 5, 1 ]
[ "nonn" ]
A351648
[ 1, 1, 1, 6, 22, 69, 224, 819, 3296, 13942, 60941, 276399, 1309207, 6479609, 33377271, 178186018, 983386188, 5604262733, 32955823822, 199771724691, 1246747659198, 8000380516898, 52728354046939, 356593588048023, 2472544614851517, 17563971319301048, 127727505109579580 ]
[ "nonn" ]
A349160
[ 1, 10, 12, 39, 63, 66, 88, 112, 115, 190, 228, 255, 259, 306, 325, 408, 434, 468, 517, 544, 609, 620, 783, 793, 805, 832, 870, 931, 946, 1150, 1160, 1204, 1241, 1242, 1353, 1380, 1392, 1534, 1539, 1656, 1691, 1722, 1845, 1900, 2035, 2067, 2208, 2296, 2369 ]
[ "nonn" ]
A007795
[ 23, 57, 1113, 1719, 2329, 3137, 4143, 4753, 5961, 6771, 7379, 8389, 97101, 103107, 109113, 127131, 137139, 149151, 157163, 167173, 179181, 191193, 197199, 211223, 227229, 233239, 241251, 257263, 269271, 277281, 283293, 307311, 313317, 331337, 347349, 353359 ]
[ "nonn", "base" ]
A260094
[ 1, 0, 1, 2, 9, 44, 265, 1854, 14833, 133496, 1334961, 14684570, 59245120, 238282730, 956135652, 3828509472, 15296722436, 60990443730, 243596762752, 975165838970, 3913571754304, 15742403448024, 63428117376852, 255662480209770, 1031080275942464, 4161127398011040 ]
[ "nonn" ]
A118099
[ 1, 3, 8, 24, 76, 284, 1195, 5832, 32254, 201417, 1400068, 10724115, 89584802, 809190807, 7844705449 ]
[ "nonn", "more" ]
A278755
[ 1, 0, 3, 8, 7, 48, 15, 224, 31, 960, 63, 3968, 127, 16128, 255, 65024, 511, 261120, 1023, 1046528, 2047, 4190208, 4095, 16769024, 8191, 67092480, 16383, 268402688, 32767, 1073676288, 65535, 4294836224, 131071, 17179607040, 262143, 68718952448, 524287 ]
[ "nonn", "easy" ]
A339577
[ 1, 2, 3, 4, 10, 12, 21, 24, 72, 80, 110, 180, 234, 504, 840, 896, 1088, 2160, 2565, 5400, 7560, 10560, 12144, 14784, 25200, 32760, 84240, 87360, 97440, 181440, 200880, 207360, 380160, 456960, 1249500, 1413720, 1538460, 1805760, 2845440, 3502080, 3778560, 7076160, 7606872, 15567552 ]
[ "nonn" ]
A128611
[ 0, 0, 1, 2, 7, 28, 116, 484, 2022, 8448, 35290, 147376, 615228, 2567060, 10704976, 44611804, 185780308, 773060804, 3214225836, 13352979316, 55426067494, 229870371888, 952548347122, 3943943111920, 16316243701350, 67447113649312, 278592165886198, 1149863118820584, 4742473257979906, 19545876370622104, 80502059920697440 ]
[ "nonn" ]
A049893
[ 1, 1, 3, 4, 8, 13, 27, 56, 112, 169, 367, 748, 1501, 3006, 6013, 12028, 24056, 36085, 78185, 159377, 320259, 641271, 1282923, 2566044, 5132145, 10264346, 20528721, 41057456, 82114917, 164229838, 328459677, 656919356, 1313838712, 1970758069, 4269975817, 8704181473 ]
[ "nonn" ]
A251597
[ 1, 48594, 108368, 141146, 189590, 255694, 291726, 292550, 357868, 440846, 544118, 549868, 671600, 843832, 857678, 1024390, 1057476, 1087540, 1266062, 1361846, 1374038, 1478036, 1483076, 1540550, 1828502, 1874512, 1927034, 1966374, 2019300, 2041898, 2056292 ]
[ "nonn" ]
A000675
[ 1, 1, 0, 1, 1, 1, 2, 4, 5, 10, 19, 36, 68, 138, 277, 581, 1218, 2591, 5545, 12026, 26226, 57719, 127685, 284109, 634919, 1425516, 3212890, 7269605, 16504439, 37592604, 85876345, 196717882, 451768247, 1039990913, 2399476030, 5547849750 ]
[ "nonn", "easy", "nice" ]
A222734
[ 1, 0, 1, 1, 2, 2, 6, 6, 9, 12, 18, 22, 36, 43, 62, 77, 107, 133, 186, 229, 306, 384, 499, 621, 810, 999, 1277, 1582, 1997, 2453, 3088, 3776, 4698, 5742, 7088, 8618, 10592, 12824, 15654, 18910, 22955, 27615, 33400, 40028, 48174, 57593, 69018, 82231, 98225 ]
[ "nonn" ]
A104106
[ 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1 ]
[ "easy", "nonn" ]
A140690
[ 1, 2, 3, 5, 7, 10, 12, 15, 21, 31, 42, 51, 56, 63, 85, 127, 170, 204, 240, 255, 341, 455, 511, 682, 819, 992, 1023, 1365, 2047, 2730, 3276, 3640, 3855, 4032, 4095, 5461, 8191, 10922, 13107, 16256, 16383, 21845, 29127, 31775, 32767, 43690, 52428, 61680 ]
[ "base", "nonn" ]
A128232
[ 1, 1, 1, 1, 2, 6, 16, 36, 141, 757, 3361, 11881, 69796, 541256, 3364362, 16217566, 127028721, 1288189281, 10294947721, 62859285817, 615454153246, 7709812846786, 75307542579116, 556618975909536, 6539815832391997 ]
[ "nonn" ]
A163894
[ 0, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 33, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 76, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 33, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 76, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 33, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 390, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4, 2, 33, 2, 4, 2, 4, 2, 24, 2, 4, 2, 4 ]
[ "nonn" ]
A215221
[ 0, 0, 1, 1, 1, 5, 11, 28, 69, 164, 437, 1104, 2887, 7778, 20861, 55610, 148857, 408694, 1112103, 3059571, 8519916, 23586160, 65766961, 183122954, 508287720, 1423807763, 4019399991, 11359914488, 32294035715, 91866217942, 258134484981, 732226048291 ]
[ "nonn" ]
A013276
[ 0, 0, -1, 3, -6, 15, -105, 630, -1260, -6615, -12285, 519750, 6548850, -111486375, -1379863485, 47789141400, -560415655800, 8675814972825, -266366151876825, 5553256188630150, -63668362865357250 ]
[ "sign" ]
A163671
[ 1, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 3, 3, 2, 2, 2, 3, 2, 2, 2, 5, 2, 2, 2, 3, 2, 3, 2, 3, 3, 2, 2, 4, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 2, 2, 2, 3, 2, 2, 2, 4, 2, 3, 2, 3, 2, 3, 2, 3, 3, 2, 2, 4, 2, 3, 2, 3, 2, 4, 2, 3, 2, 2, 2, 4, 2, 2, 3, 3, 2, 2, 2, 3, 2, 3, 2, 4, 2, 2, 4 ]
[ "nonn" ]
A254329
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 16, 20, 32 ]
[ "nonn", "fini", "full" ]
A361695
[ 1, 14, 574, 3542, 18494, 43414, 145222, 235998, 591934, 860846, 1779974, 2256422, 4678982, 5195750, 9675918, 10983742, 18942014, 19873966, 35294686, 34670454, 57349894, 59707494, 92513302, 90116222, 149759302, 135668414, 213025750, 209185718, 311753358, 287144326, 450333422 ]
[ "nonn" ]
A064782
[ 7776, 117649, 1071904, 7601777, 46205469, 252620693, 1277843841, 6088987597, 27669884619, 120970585689, 512143134419, 2110092318654, 8493720340735, 33506301271642, 129860760881905, 495506657571553, 1864611086321279 ]
[ "nonn" ]
A322095
[ 1, 0, 2, 339720, 549023310936, 4383995385521886700, 1.3182899382276595e+26, 1.2202002913678756e+34, 2.9883254858156564e+42, 1.7234271490812482e+51 ]
[ "nonn" ]
A055897
[ 1, 2, 12, 108, 1280, 18750, 326592, 6588344, 150994944, 3874204890, 110000000000, 3423740047332, 115909305827328, 4240251492291542, 166680102383370240, 7006302246093750000, 313594649253062400000, 1.4890324713954062e+22, 7.475817534306342e+23 ]
[ "nonn" ]
A019939
[ 8, 6, 9, 2, 8, 6, 7, 3, 7, 8, 1, 6, 2, 2, 6, 6, 6, 2, 2, 0, 0, 0, 9, 5, 6, 3, 8, 7, 0, 3, 9, 4, 2, 0, 9, 0, 6, 6, 8, 0, 9, 0, 4, 9, 7, 7, 8, 2, 4, 5, 4, 8, 3, 9, 8, 3, 5, 7, 3, 1, 9, 6, 4, 3, 9, 8, 3, 4, 5, 1, 2, 6, 0, 9, 5, 9, 5, 6, 3, 9, 5, 9, 9, 8, 4, 9, 5, 7, 2, 3, 8, 0, 4, 2, 5, 1, 5, 8, 9 ]
[ "nonn", "cons" ]
A340318
[ 0, 1, 3, 5, 8, 11, 16 ]
[ "nonn", "more" ]
A109433
[ 1, 2, 1, 4, 2, 1, 8, 5, 2, 1, 16, 11, 5, 2, 1, 32, 24, 12, 5, 2, 1, 64, 51, 27, 12, 5, 2, 1, 128, 107, 60, 28, 12, 5, 2, 1, 256, 222, 131, 63, 28, 12, 5, 2, 1, 512, 457, 282, 140, 64, 28, 12, 5, 2, 1, 1024, 935, 601, 307, 143, 64, 28, 12, 5, 2, 1, 2048, 1904, 1270, 666, 316, 144 ]
[ "base", "nonn", "tabl" ]
A118312
[ 1, 8, 33, 76, 129, 196, 277, 372, 481, 604, 741, 892, 1057, 1236, 1429, 1636, 1857, 2092, 2341, 2604, 2881, 3172, 3477, 3796, 4129, 4476, 4837, 5212, 5601, 6004, 6421, 6852, 7297, 7756, 8229, 8716, 9217, 9732, 10261, 10804, 11361, 11932, 12517, 13116, 13729, 14356, 14997, 15652 ]
[ "easy", "nice", "nonn" ]
A384792
[ 1, 11, 21, 121, 221, 1121, 1221, 11121, 11221, 111221, 211221, 1211221, 2211221, 11211221, 12211221, 111211221, 112211221, 1112211221, 2112211221, 12112211221, 22112211221, 112112211221, 122112211221, 1112112211221 ]
[ "nonn", "easy", "fini", "full" ]
A010237
[ 14, 9, 2, 1, 2, 2, 5, 4, 1, 1, 13, 1, 1, 4, 5, 2, 2, 1, 2, 9, 28, 9, 2, 1, 2, 2, 5, 4, 1, 1, 13, 1, 1, 4, 5, 2, 2, 1, 2, 9, 28, 9, 2, 1, 2, 2, 5, 4, 1, 1, 13, 1, 1, 4, 5, 2, 2, 1, 2, 9, 28, 9, 2, 1, 2, 2, 5, 4, 1, 1, 13, 1, 1, 4, 5, 2, 2, 1 ]
[ "nonn", "cofr" ]
A270210
[ 1, 5, 5, 41, 12, 109, 16, 209, 20, 337, 28, 501, 28, 689, 52, 913, 60, 1161, 68, 1457, 56, 1757, 120, 2085, 168, 2429, 216, 2841, 224, 3249, 312, 3697, 324, 4193, 332, 4753, 296, 5277, 436, 5821, 564, 6361, 668, 6997, 712, 7613, 852, 8257, 932, 8945, 972 ]
[ "nonn", "easy" ]
A303533
[ 1, 1, 7, 225, 31041, 17698273, 41014759873, 383214694567809, 14378402336340492000, 2.162169920997911e+24, 1.3018283964081367e+30, 3.13682191982209e+36, 3.0240714417270287e+43 ]
[ "nonn" ]
A313040
[ 1, 4, 9, 14, 18, 22, 29, 37, 34, 45, 50, 54, 56, 65, 69, 75, 75, 83, 89, 98, 90, 103, 114, 113, 111, 125, 129, 136, 129, 143, 152, 155, 148, 163, 173, 174, 165, 185, 191, 195, 186, 201, 214, 216, 201, 223, 235, 233, 221, 245 ]
[ "nonn" ]
A287344
[ 3, 5, 9, 11, 13, 15, 23, 25, 35, 37, 41, 43, 45, 47, 55, 57, 65, 67, 75, 77, 93, 95, 99, 101, 111, 113, 117, 119, 121, 123, 131, 133, 149, 151, 155, 157, 167, 169, 173, 175, 179, 181, 185, 187, 189, 191, 199, 201, 211, 213, 217, 219, 221, 223, 231, 233, 241 ]
[ "nonn", "easy" ]
A245960
[ 1, 1, 0, 0, 2, 1, 0, 3, 0, 1, 0, 0, 6, 0, 1, 0, 0, 5, 5, 0, 1, 0, 0, 3, 8, 6, 0, 1, 0, 0, 0, 14, 7, 7, 0, 1, 0, 0, 0, 8, 22, 8, 8, 0, 1, 0, 0, 0, 3, 27, 27, 9, 9, 0, 1, 0, 0, 0, 0, 25, 42, 35, 10, 10, 0, 1, 0, 0, 0, 0, 11, 66, 55, 44, 11, 11, 0, 1 ]
[ "nonn", "tabl" ]
A265745
[ 0, 1, 2, 1, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 3, 4, 3, 4, 1, 2, 3, 2, 3, 2, 3, 4, 3, 4, 3, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 2, 1, 2, 3, 2, 3, 2, 3, 4, 3, 4, 3, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 4, 3, 4, 5, 4, 5, 4, 5, 6, 5, 6, 1, 2, 3, 2, 3, 2, 3, 4, 3, 4, 3, 2, 3, 4, 3, 4, 3, 4, 5, 4, 5, 2 ]
[ "nonn", "base" ]
A241379
[ 0, 0, 0, 0, 1, 1, 0, 2, 1, 3, 3, 6, 6, 10, 12, 18, 21, 28, 35, 48, 56, 78, 93, 115, 143, 187, 219, 282, 337, 419, 496, 629, 736, 912, 1090, 1324, 1564, 1901, 2238, 2720, 3187, 3821, 4501, 5387, 6291, 7455, 8770, 10341, 12080, 14227, 16575, 19479, 22676 ]
[ "nonn", "easy" ]
A378271
[ 1, 2, 3, 11, 12, 435, 436, 6748, 42360, 1252676, 1252677, 302302546, 302302547 ]
[ "nonn", "more" ]
A107102
[ 1, -1, 1, 2, -3, 1, -7, 12, -6, 1, 37, -67, 39, -10, 1, -266, 495, -310, 95, -15, 1, 2431, -4596, 3000, -1010, 195, -21, 1, -27007, 51583, -34566, 12320, -2660, 357, -28, 1, 353522, -680037, 463981, -171766, 39795, -6062, 602, -36, 1, -5329837, 10306152, -7124454, 2709525, -658791, 108927, -12432, 954 ]
[ "sign", "tabl" ]
A090987
[ 5, 7, 5, 7, 103, 11, 5, 37, 13, 5, 7, 5, 11, 7, 5, 17, 5, 13, 7, 19, 11, 5, 7, 5, 59, 5, 11, 7, 13, 5, 23, 7, 5, 17, 37, 5, 7, 5, 13, 7, 271, 19, 5, 11, 5, 7, 37, 5, 7, 29, 13, 11, 17, 5, 5, 7, 31, 11, 5, 7, 5, 23, 5, 7, 19, 11, 5, 7, 17, 5, 13, 5, 103, 37, 7, 5, 59, 5, 11, 13, 37, 7, 5, 7, 5, 131, 19, 17, 11, 37, 5, 7, 13, 5, 7, 11, 5, 23, 5, 67, 7, 5, 41, 29, 13, 11, 7, 5, 17, 5, 19, 7, 5, 43, 13, 7, 5, 31, 37, 5, 11, 67, 7, 5, 7, 17, 5, 11, 5, 7, 23, 5, 37, 7, 19, 59, 5, 11, 13, 47, 5, 7, 5, 11, 7, 5, 13, 5, 7, 5, 7, 5 ]
[ "nonn" ]
A243329
[ 1, 1, 1, 2, 1, 4, 1, 4, 3, 6 ]
[ "nonn", "more" ]
A127752
[ 1, 4, 3, 7, 3, 6, 3, 10, 3, 6, 3, 9, 3, 6, 3, 13, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 16, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 19, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 18, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6 ]
[ "nonn" ]
A378089
[ 1, 3, 8, 10, 18, 24, 30, 5, 9, 15, 28, 40, 72, 84, 90, 120, 7, 21, 26, 56, 70, 78, 108, 126, 168, 210, 34, 45, 52, 102, 140, 156, 252, 360, 420, 11, 33, 88, 110, 198, 264, 330, 13, 35, 39, 63, 76, 104, 105, 130, 228, 234, 280, 312, 390, 504, 540, 630, 840, 58, 98, 174, 294 ]
[ "nonn", "tabf" ]
A302819
[ 64, 960, 7900, 170262, 3252934, 58122740, 1135257814, 22294687742, 427140472935, 8302040868397, 161951214852377, 3140738898721896, 61036498168516640, 1187741080719613700, 23082916011414934000, 448705985586604700000 ]
[ "nonn" ]
A030728
[ 3, 1, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 5, 6, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 18, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ]
[ "nonn" ]
A357203
[ 1, 1, 3, 18, 111, 800, 5990, 46995, 379090, 3129713, 26301576, 224282112, 1935668344, 16876028036, 148410725830, 1314933853171, 11726585616205, 105178923513494, 948185788906100, 8586757756571261, 78079244607685020, 712592590813142000, 6525273550226573000 ]
[ "nonn" ]
A247610
[ 1, 11, 66, 286, 1001, 3003, 7798, 17858, 36873, 70003, 124130, 208110, 333025, 512435, 762630, 1102882, 1555697, 2147067, 2906722, 3868382, 5070009, 6554059, 8367734, 10563234, 13198009, 16335011, 20042946, 24396526, 29476721, 35371011, 42173638, 49985858 ]
[ "nonn", "easy" ]
A033110
[ 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 16, 18, 19, 21, 22, 24, 26, 28, 29, 32, 33, 35, 37, 39, 40, 44, 45, 47, 49, 52, 53, 56, 57, 60, 63, 65, 66, 70, 71, 74, 76, 79, 80, 84, 86, 89, 91, 93, 94, 100 ]
[ "nonn", "base" ]
A157026
[ 19, 29, 41, 53, 67, 71, 89, 97, 103, 113, 127, 137, 139, 151, 167, 179, 181, 191, 193, 197, 199, 229, 239, 241, 251, 269, 281, 293, 307, 311, 317, 331, 349, 373, 379, 383, 389, 419, 431, 461, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541 ]
[ "nonn" ]
A027325
[ 10, 92, 800, 6850, 58120, 491244, 4145904, 34988117, 295493922, 2498651947, 21159423668, 179473434959, 1524819106186, 12976597671471, 110615820975824, 944428642359295, 8075947935277270, 69161560972101900, 593138786845412100, 5093792665779457000 ]
[ "nonn" ]
A000092
[ 1, 2, 5, 6, 14, 21, 29, 30, 54, 90, 134, 155, 174, 230, 234, 251, 270, 342, 374, 461, 494, 550, 666, 750, 810, 990, 1890, 2070, 2486, 2757, 2966, 3150, 3566, 3630, 4554, 4829, 5670, 5750, 8154, 8382, 8774, 8910, 10350, 10710, 15734, 15750, 16302, 17550 ]
[ "nonn" ]
A200364
[ 1, 4, 4, 7, 7, 7, 5, 5, 3, 8, 4, 2, 8, 4, 9, 3, 9, 8, 1, 4, 0, 8, 3, 9, 9, 1, 7, 2, 4, 7, 4, 7, 7, 9, 8, 3, 2, 8, 0, 6, 1, 6, 2, 9, 0, 9, 0, 3, 8, 3, 7, 3, 6, 7, 1, 7, 4, 0, 7, 6, 9, 3, 6, 8, 0, 8, 3, 4, 4, 3, 4, 3, 4, 5, 3, 2, 5, 0, 1, 7, 0, 3, 6, 0, 6, 6, 4, 0, 9, 6, 9, 6, 7, 1, 1, 7, 9, 6, 7 ]
[ "nonn", "cons" ]
A028372
[ 2, 2, 73, 73, 241, 241, 1009, 1009, 1009, 1009, 7561, 7561, 21961, 35281, 35281, 35281, 44641, 44641, 374089, 622561, 622561, 622561, 4379281, 4379281, 4379281, 17690689, 17690689, 17690689, 17690689, 17690689, 316234801, 1996405009, 1996405009, 1996405009 ]
[ "nonn" ]
A096561
[ 2147483398, 2147442707, 491644535, 44073136, 275411947, 1494571342, 367188984, 1612130085, 1622029567, 724872099, 810967243, 1649143122, 223185073, 139696145, 126975187, 29251410, 592572674, 1023646436, 1632766708, 1701483674, 1908878648, 1615402586, 1642669521 ]
[ "nonn", "easy" ]
A024332
[ 0, 0, 1, -3, 9, -30, 107, -357, 492, 11520, -234440, 3556520, -51373780, 750804600, -11349186700, 179062886100, -2959725476000, 51309772966400, -932811192037200, 17769951660870000, -354309379544446000, 7384407204701604000, -160652936843547020000 ]
[ "sign" ]
A351088
[ 0, 1, 2, 6, 7, 8, 30, 2310, 2556, 30030, 223092870 ]
[ "nonn", "hard", "more" ]
A365291
[ 1, 2, 3, 83, 1298, 4259, 11087, 22637, 65579, 102044, 181838, 234527, 467627, 754652, 991889, 1431113, 1875902, 2271407, 4102958, 4851593, 8458148, 6826874, 10715858, 15453983, 18805058, 23502134, 27671573, 34425893, 34967159, 47158793, 54659384, 78188129, 67269347 ]
[ "nonn" ]
A082798
[ 8, 8, 81, 8, 80, 84, 84, 8, 81, 80, 88, 84, 806, 84, 810, 80, 85, 810, 817, 80, 84, 88, 805, 816, 800, 806, 81, 84, 87, 810, 806, 800, 825, 816, 805, 828, 814, 836, 819, 80, 82, 84, 86, 88, 810, 828, 846, 816, 833, 800, 816, 832, 848, 810, 825, 840, 855, 812 ]
[ "base", "easy", "nonn" ]
A251085
[ 872, 2534, 4379, 8512, 14891, 27040, 48017, 87488, 160737, 301824, 574763, 1111016, 2169343, 4270640, 8452477, 16793312, 33445781, 66718416, 133223943, 266191016, 532072547, 1063777504, 2127119369, 4253728192, 8506859561, 17013027680 ]
[ "nonn" ]
A086431
[ 0, 1, 2, 3, 4, 5, 7, 6, 8, 9, 11, 10, 12, 13, 17, 18, 16, 14, 15, 21, 20, 19, 22, 23, 28, 25, 30, 33, 24, 29, 26, 31, 32, 27, 35, 34, 36, 45, 48, 46, 49, 50, 44, 47, 42, 37, 39, 43, 38, 40, 41, 58, 59, 57, 54, 55, 56, 53, 51, 52, 63, 62, 61, 60, 64, 65, 79, 70, 84, 93 ]
[ "nonn" ]