id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A134813
[ 1, -3, 3, 0, -6, 12, -12, 0, 24, -48, 48, 0, -96, 192, -192, 0, 384, -768, 768, 0, -1536, 3072, -3072, 0, 6144, -12288, 12288, 0, -24576, 49152, -49152, 0, 98304, -196608, 196608, 0, -393216, 786432, -786432, 0, 1572864, -3145728, 3...
[ "sign" ]
A245697
[ 0, 4, 25, 42, 133, 152, 279, 170, 121, 204, 1079, 938, 5295, 3632, 2771, 1062, 1159, 2260, 7413, 682, 33281, 13704, 9725, 4966, 9099, 24724, 2929, 54690, 20429, 22688, 5379, 46274, 15365, 11052, 40441, 65854, 97149, 42520, 44731, 83958, ...
[ "nonn" ]
A004063
[ 5, 13, 131, 149, 1699, 14221, 35201, 126037, 371669, 1264699 ]
[ "nonn", "hard", "more" ]
A082184
[ 3, 6, 10, 6, 8, 28, 13, 10, 13, 18, 21, 16, 15, 26, 136, 21, 23, 40, 21, 23, 28, 38, 27, 31, 28, 28, 61, 36, 38, 496, 53, 36, 43, 36, 61, 46, 41, 44, 106, 51, 53, 91, 45, 49, 58, 78, 66, 52, 54, 53, 112, 66, 55, ...
[ "nonn" ]
A282140
[ 1, 3, 6, 7, 9, 10, 12, 24, 39, 135, 258, 382, 660, 900, 1306, 1528, 3658, 3937, 5157, 7006, 7936, 10956, 15396, 45808, 198403 ]
[ "nonn", "more", "hard" ]
A272967
[ 2, 6, 10, 21, 14, 28, 18, 29, 22, 32, 26, 36, 30, 40, 34, 44, 38, 48, 42, 52, 46, 56, 50, 60, 54, 64, 58, 68, 62, 72 ]
[ "nonn" ]
A127397
[ 0, 1, 3, 5, 4, 12, 13, 14, 2, 6, 10, 15, 17, 8, 19, 30, 34, 47, 53, 11, 16, 9, 7, 18, 31, 33, 48, 52, 29, 20, 44, 37, 27, 22, 42, 39, 25, 24, 40, 41, 23, 26, 38, 43, 21, 28, 36, 45, 55, 66, 59, 62, 63, 58, 67...
[ "nonn", "look" ]
A345354
[ 0, 0, 0, 1, 0, 2, 0, 1, 1, 2, 0, 3, 0, 2, 2, 1, 0, 3, 0, 3, 2, 2, 0, 3, 1, 2, 1, 3, 0, 6, 0, 1, 2, 2, 2, 4, 0, 2, 2, 3, 0, 6, 0, 3, 3, 2, 0, 3, 1, 3, 2, 3, 0, 3, 2, 3, 2, 2, 0, 7, 0, 2, 3, 1...
[ "nonn" ]
A299330
[ 0, 6, 36, 263, 2537, 22718, 214683, 2024559, 19169227, 181762287, 1723995924, 16356826774, 155199770911, 1472657804158, 13973960703276, 132598941011278, 1258235426682140, 11939448572555796, 113293986222690110 ]
[ "nonn" ]
A320708
[ 154, 259, 442, 480, 548, 753, 777, 783, 876, 971, 1035, 1066, 1095, 1106, 1147, 1254, 1277, 1302, 1337, 1345, 1355, 1381, 1396, 1400, 1423, 1438, 1562, 1592, 1613, 1662, 1669, 1808, 1955, 2016, 2043, 2081, 2116, 2129, 2147, 2226, 2302, ...
[ "nonn" ]
A164520
[ 274627, 328511, 1860869, 2146691, 2924209, 9129331, 9938377, 10503461, 15438251, 24642173, 26730901, 28372627, 39651823, 61629877, 105823819, 125751503, 136590877, 151419439, 194104541, 426957779, 573856193 ]
[ "nonn" ]
A344795
[ 20, 29, 32, 35, 37, 38, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, ...
[ "nonn" ]
A076105
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 21, 10, 11, 12, 13, 44, 14, 15, 16, 17, 18, 100, 19, 20, 22, 23, 24, 25, 47, 26, 27, 28, 29, 30, 31, 32, 157, 33, 34, 35, 36, 37, 38, 39, 40, 68, 41, 42, 43, 45, 46, 48, 49, 50, 51, ...
[ "nonn", "tabl" ]
A324570
[ 1, 2, 9, 12, 18, 40, 100, 112, 125, 240, 250, 352, 360, 392, 405, 540, 600, 672, 675, 810, 832, 900, 1008, 1125, 1350, 1372, 1500, 1512, 1701, 1875, 1936, 2112, 2176, 2240, 2250, 2268, 2352, 2401, 3168, 3402, 3528, 3750, 3969, 475...
[ "nonn" ]
A317704
[ 3, 2, 4, 8, 1, 6, 3, 6, 5, 9, 0, 5, 2, 9, 7, 5, 3, 5, 9, 7, 4, 4, 2, 7, 1, 6, 1, 5, 2, 7, 3, 4, 6, 4, 2, 1, 1, 5, 6, 0, 0, 6, 8, 2, 0, 9, 8, 7, 9, 7, 8, 0, 3, 1, 5, 9, 6, 4, 2, 5, 7, 1, 0, 9...
[ "nonn", "cons" ]
A387065
[ 0, 0, 3, 9, 8, 6, 4, 4, 1, 6, 6, 3, 6, 7, 0, 7, 5, 0, 4, 3, 1, 7, 1, 0, 4, 0, 5, 3, 5, 2, 8, 2, 0, 4, 2, 9, 4, 2, 4, 1, 7, 1, 5, 4, 8, 4, 3, 4, 1, 7, 2, 8, 9, 6, 5, 6, 5, 6, 0, 6, 8, 0, 2, 8...
[ "nonn", "cons" ]
A073830
[ 0, 2, 0, 8, 0, 10, 56, 12, 22, 14, 0, 16, 182, 18, 34, 20, 0, 22, 380, 24, 46, 26, 552, 28, 29, 30, 58, 32, 0, 34, 992, 36, 37, 38, 74, 40, 1406, 42, 82, 44, 0, 46, 1892, 48, 94, 50, 2256, 52, 53, 54, 106, 56, 28...
[ "nonn" ]
A205415
[ 468, 3868, 3868, 33322, 44596, 33322, 236576, 549414, 549414, 236576, 1820215, 5686031, 10331386, 5686031, 1820215, 14452683, 64878898, 151598017, 151598017, 64878898, 14452683, 109757792, 768581101, 2553087985, 2839359056, 2553087985 ]
[ "nonn", "tabl" ]
A008026
[ 1, 4, 9, 17, 29, 45, 64, 85, 110, 140, 173, 208, 247, 294, 347, 399, 449, 504, 570, 641, 708, 774, 848, 932, 1018, 1101, 1186, 1278, 1377, 1479, 1581, 1684, 1791, 1907, 2032, 2158, 2279, 2400, 2533, 2678, 2821, 2956, 3094, 3247, ...
[ "nonn" ]
A245599
[ 1, 11, 91, 731, 5851, 46811, 374491, 2995931, 23967451, 191739611, 1533916891, 12271335131, 98170681051, 785365448411, 6282923587291, 50263388698331, 402107109586651, 3216856876693211, 25734855013545692, 205878840108365540, 1647030720866924300, 13176245766935394000 ]
[ "nonn", "base", "easy" ]
A272128
[ 1, 14763, 628805, 5501167, 24943689, 79549811, 203823373, 449807415, 890712977, 1624547899, 2777745621, 4508793983, 7011864025, 10520438787, 15310942109, 21706367431, 30079906593, 40858578635, 54526858597, 71630306319, 92779195241, 118652141203 ]
[ "easy", "nonn" ]
A369756
[ 1, -1, -3, -1, 49, 255, -275, -13105, -83775, 170495, 8290045, 69257055, -111005135, -9684015745, -109196883795, -31470300625, 17728458119425, 276531029694975, 904537471692925, -44728487203650620, -1000823562359108200, -7110596979389966000 ]
[ "sign" ]
A193931
[ 1, 1, 3, 13, 73, 501, 3331, 27553, 253233, 2540233, 27340291, 309811701, 3843476473, 50560182973, 701098196163, 10205952248521, 155809733115361, 2506135027165713, 42013633806350080, 732584456250306000, 13270900741926554000, 249625454707702700000 ]
[ "nonn" ]
A121661
[ 1, 6, 55, 556, 7839, 118141, 2488800, 54871741, 1374282325, 35786212191, 1182319284628, 40234641889543, 1409394785418633, 53597236487797600, 2091701617809525000, 96271871655725940000, 4.719413412748381e+21 ]
[ "dead" ]
A076964
[ 3, 9, 36, 1260, 908107200, 4.3468142423564473e+46 ]
[ "nonn" ]
A216822
[ 1, 5, 13, 29, 37, 61, 73, 157, 181, 193, 277, 313, 397, 421, 457, 541, 561, 613, 661, 673, 733, 757, 877, 997, 1093, 1153, 1201, 1213, 1237, 1289, 1321, 1381, 1453, 1621, 1657, 1753, 1873, 1905, 1933, 1993, 2017, 2137, 2341, 2473,...
[ "easy", "nonn" ]
A254821
[ 2, 6, 13, 26, 48, 80, 141, 250, 432, 811, 1738, 3961, 8538, 17025, 34187, 72898, 157026, 321779, 617116, 1123322, 1990020, 3513143, 6331279, 11993364, 24225202, 51006817, 107771521, 224620410, 465541899, 968974620, 2010309389, 4078213843 ]
[ "nonn" ]
A265406
[ 1, 2, 3, 4, 5, 6, 8, 10, 19, 14, 28, 13, 31, 20, 11, 7, 9, 15, 17, 16, 35, 48, 69, 42, 87, 50, 71, 52, 97, 38, 101, 12, 25, 21, 82, 44, 54, 89, 99, 23, 56, 58, 140, 142, 63, 144, 146, 22, 84, 24, 40, 149, 103, ...
[ "nonn", "more" ]
A229610
[ 2, 7, 3, 23, 11, 5, 71, 37, 17, 13, 223, 113, 53, 41, 19, 673, 347, 163, 127, 59, 29, 2027, 1049, 491, 383, 179, 89, 31, 6089, 3163, 1481, 1151, 541, 269, 97, 43, 18269, 9491, 4447, 3457, 1627, 809, 293, 131, 47, 54829, 2847...
[ "nonn", "tabl" ]
A104482
[ 1, 1, 2, 2, 1, 1, 2, 1, 3, 2, 2, 2, 4, 3, 3, 4, 1, 2, 5, 4, 3, 4, 2, 2, 4, 2, 3, 4, 2, 3, 6, 4, 4, 2, 3, 5, 3, 5, 5, 3, 3, 4, 6, 4, 4, 3, 2, 3, 2, 1, 6, 2, 7, 2, 2, 4, 4, 3, 6, 2, 3, 2, 4, 4...
[ "nonn", "base" ]
A230571
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 2, 60, 32, 0, 0, 0, 0, 8, 868, 2582, 430, 0, 0, 0, 0, 32, 9088, 93450, 91084, 5130, 0, 0, 0, 0, 120, 94014, 2541242, 8554108, 3026090, 58474, 0, ...
[ "nonn", "tabl" ]
A139987
[ 7, 127, 463, 487, 823, 967, 1087, 1303, 1327, 1423, 1663, 2143, 2503, 2647, 2767, 3343, 3607, 3823, 3847, 3943, 4327, 4447, 4663, 4783, 5023, 5167, 5503, 5527, 5623, 6007, 6343, 6367, 6703, 6967, 7207, 7687, 8527, 8647, 8863, 8887, 1056...
[ "nonn", "easy" ]
A192700
[ 2, 13, 75, 361, 1355, 4257, 11487, 28113, 62690, 130088, 253378, 470284, 832594, 1423302, 2347627, 3764623, 5870541, 8958955, 13369172, 19590712, 28190894, 39941879, 55749068, 76863446, 104549377, 140705757, 187241581, 246861965 ]
[ "nonn" ]
A274365
[ 180224, 257499, 579375, 1075599, 1990575, 2353616, 5598800, 10320624, 11560400, 13975983, 16951599, 17213552, 17651600, 17672499, 17784207, 20626991, 20660624, 21041775, 21912848, 22252400, 24533199, 24953103, 26161875, 26604207, 29232175, 29253392 ]
[ "nonn" ]
A065975
[ 1, 1, 1, 1, 2, 4, 4, 120, 160, 12096, 20160, 604800, 403200, 456192, 5322240, 217945728000, 581188608000, 139485265920, 232475443200, 13857951744000, 508124897280000, 6192841475358720, 113535427048243200, 187333454629601280000 ]
[ "nonn", "frac" ]
A219037
[ 2, 6, 66, 73786976294838210000 ]
[ "nonn", "hard", "more" ]
A096914
[ 1, 2, 4, 7, 11, 17, 25, 36, 50, 69, 93, 124, 163, 212, 273, 349, 442, 556, 695, 863, 1066, 1310, 1602, 1950, 2364, 2854, 3433, 4115, 4916, 5854, 6951, 8229, 9716, 11442, 13441, 15752, 18419, 21490, 25021, 29074, 33718, 39031, 45101,...
[ "easy", "nonn" ]
A186678
[ 0, 4, 43, 241, 299, 287, 304, 309, 316, 286, 299 ]
[ "nonn", "base", "more" ]
A180043
[ 0, 0, 10, 24, 2064, 39961, 1194828 ]
[ "nonn", "hard", "more" ]
A308829
[ 0, 1, 5, 27, 45, 47, 75, 8895, 11405, 29517, 84615, 218307 ]
[ "nonn", "hard", "more" ]
A361292
[ 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 2, 2, 0, 1, 0, 2, 4, 2, 4, 2, 0, 2, 5, 4, 7, 7, 4, 5, 2, 5, 5, 10, 14, 12, 14, 10, 5, 5, 5, 10, 21, 23, 30, 30, 23, 21, 10, 5, 10, 23, 35, 49, 62, ...
[ "nonn", "tabl" ]
A287226
[ 1, 10, 1222, 3134676, 211688646876 ]
[ "nonn", "more" ]
A259792
[ 1, 1, 2, 5, 17, 62, 258, 1050, 4365, 18012, 73945, 301073, 1214876, 4852899, 19187598, 75070201, 290659230, 1113785613, 4224773811, 15866483556, 59011553910, 217410395916, 793635925091, 2871246090593, 10297627606547, 36620869115355, 129166280330900 ]
[ "nonn" ]
A054037
[ 10124, 10128, 10136, 10214, 10278, 11826, 12363, 12543, 12582, 12586, 13147, 13268, 13278, 13343, 13434, 13545, 13698, 14098, 14442, 14676, 14743, 14766, 15353, 15681, 15963, 16549, 16854, 17252, 17529, 17778, 17816, 18072, 19023, 19377, 19569, 1...
[ "nonn", "base" ]
A372317
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 12, 13, 14, 11, 16, 17, 18, 21, 20, 19, 22, 23, 24, 25, 26, 27, 28, 45, 30, 31, 32, 33, 46, 51, 36, 37, 42, 39, 40, 41, 38, 43, 44, 29, 34, 47, 48, 49, 50, 35, 52, 53, 54...
[ "nonn", "base" ]
A021321
[ 0, 0, 3, 1, 5, 4, 5, 7, 4, 1, 3, 2, 4, 9, 2, 1, 1, 3, 5, 6, 4, 6, 6, 8, 7, 6, 9, 7, 1, 6, 0, 8, 8, 3, 2, 8, 0, 7, 5, 7, 0, 9, 7, 7, 9, 1, 7, 9, 8, 1, 0, 7, 2, 5, 5, 5, 2, 0, 5, 0, 4, 7, 3, 1...
[ "nonn", "cons", "easy" ]
A147994
[ 0, 0, 1, 3, 3, 2, 6, 6, 7, 7, 7, 4, 4, 4, 13, 12, 13, 15, 15, 14, 14, 14, 14, 8, 11, 11, 8, 8, 8, 8, 2, 0, 0, 2, 6, 3, 2, 7, 6, 7, 5, 5, 4, 4, 4, 4, 4, 8, 4, 12, 11, 14, 13, 11, 11, 14, 8, 11, 8, 8,...
[ "nonn" ]
A207890
[ 1, 1, 2, 3, 4, 5, 8, 11, 14, 17, 20, 29, 44, 55, 66, 69, 72, 77, 86, 149, 152, 167, 172, 183, 198, 229, 230, 233, 254, 267, 276, 285, 316, 355, 370, 377, 402, 423, 458, 469, 478, 517, 570, 623, 704, 725, 730, 753, 762, ...
[ "nonn", "tabl" ]
A148571
[ 1, 1, 3, 6, 19, 53, 174, 578, 1995, 7216, 26344, 99728, 381800, 1492177, 5915918, 23744011, 96564899, 396388960, 1644245678, 6876168960, 28989823670, 123106176598, 526195843753, 2263275385587, 9788573310743, 42562654829075, 185963233778672, 816227682031374, 35...
[ "nonn", "walk" ]
A389226
[ 5184, 11664, 82944, 186624, 373248, 419904, 746496, 944784, 1259712, 1327104, 3240000, 3779136, 6718464, 7290000, 11943936, 15116544, 20250000, 21233664, 23887872, 26873856, 29160000, 47775744, 51840000, 76527504, 80621568, 81000000, 107495424, 116640000, 1360...
[ "nonn", "changed" ]
A257331
[ 5, 6, 19, 8, 35, 43, 16, 53, 67, 45, 79, 55, 89, 91, 69, 113, 36, 131, 63, 139, 75, 44, 111, 50, 173, 52, 185, 58, 123, 68, 215, 74, 229, 235, 241, 251, 253, 265, 277, 275, 287, 80, 307, 295, 317, 165, 331, 213, 323, 7...
[ "nonn" ]
A176969
[ 2, 8, 10, 12, 20, 22, 28, 30, 32, 38, 42, 48, 58, 60, 62, 68, 80, 90, 100, 108, 110, 112, 122, 128, 138, 142, 148, 150, 168, 172, 180, 190, 198, 200, 202, 210, 228, 230, 232, 238, 242, 248, 258, 262, 268, 280, 282, 302, ...
[ "nonn" ]
A348191
[ 1, 0, 1, 0, 1, 1, 0, 0, 3, 1, 0, 6, 3, 6, 1, 0, 24, 30, 15, 10, 1, 0, 0, 234, 105, 45, 15, 1, 0, 720, 504, 1134, 315, 105, 21, 1, 0, 5040, 7020, 5292, 3969, 840, 210, 28, 1, 0, 0, 89424, 48572, 29484, 11529, 2016, ...
[ "nonn", "tabl" ]
A256912
[ 1, 3, 4, 7, 10, 16, 66, 138, 5839, 23898, 112098 ]
[ "more", "hard", "nonn" ]
A272286
[ 1, 2, 9, 2, 1, 5, 0, 1, 8, 4, 0, 6, 0, 9, 9, 8, 4, 1, 3, 4, 1, 5, 7, 1, 9, 0, 0, 0, 7, 4, 2, 1, 9, 7, 7, 7, 1, 5, 7, 3, 3, 6, 4, 6, 2, 0, 3, 8, 6, 7, 8, 7, 4, 4, 8, 7, 7, 3, 0, 0, 0, 6, 2, 5...
[ "nonn", "cons" ]
A346265
[ 1, 1, 2, 5, 3, 2, 2, 9, 1, 1, 2, 2, 1, 4, 9, 4, 2, 2, 13, 5, 3, 2, 4, 10, 2, 5, 2, 2, 1, 16, 2, 4, 6, 2, 10, 4, 1, 4, 2, 2, 17, 3, 2, 9, 13, 3, 6, 2, 3, 19, 2, 3, 4, 6, 2, 10, 6, 2, 7, 23, 2, 2,...
[ "nonn" ]
A335725
[ 1, 2, 5, 13, 35, 93, 260 ]
[ "nonn", "hard", "more" ]
A331993
[ 1, 1, 1, 2, 3, 6, 11, 22, 43, 90, 185, 393, 835, 1802, 3904, 8540, 18756, 41463, 92022, 205179, 459086, 1030917, 2321949, 5245104, 11878750, 26967957, 61359917, 139902251, 319591669, 731385621, 1676573854, 3849288924, 8850674950, 20378544752, 46982...
[ "nonn" ]
A309638
[ 1, 3, 21, 204, 2819, 50891, 1143423, 30939931, 984011503, 36098843631, 1504934136432, 70436763188525, 3664092112471681, 210056231435360030, 13175390260774095000, 898537704166507300000, 6.626555024614743e+22, 5.25940928783448e+24, 4.4734191038813306e+26, 4.062096738653841e+28 ]
[ "nonn" ]
A157483
[ 19, 29, 43, 51, 67, 69, 77, 115, 171, 173, 187, 189, 237, 243, 245, 267, 274, 283, 285, 291, 317, 344, 355, 386, 403, 405, 411, 424, 427, 429, 435, 437, 476, 507, 597, 603, 604, 605, 638, 653, 664, 669, 723, 763, 776, 787, 7...
[ "nonn" ]
A043969
[ 12, 28, 93, 116, 174, 190, 260, 271, 336, 352, 417, 433, 498, 514, 579, 595, 660, 676, 741, 757, 822, 845, 903, 919, 1052, 1065, 1081, 1146, 1162, 1227, 1243, 1308, 1324, 1389, 1405, 1470, 1486, 1551, 1574, 1632, 1648, 1718 ]
[ "nonn", "base" ]
A280983
[ 11824560, 14283650, 14283666, 14283672, 14422716, 14872610, 14872612, 14881986, 14917048, 22453380, 29875904, 29877516, 29878760, 29878776, 29878782, 29878812, 29879052, 29880432, 31852820, 31852822, 31888098, 31894108, 31894110, 31894130, 32255514, 32527482, 3255...
[ "nonn", "base", "fini", "full" ]
A222798
[ 0, 294, 3800, 137804, 1615706, 88097352, 1233338020, 77485314031, 1250051785173, 88404393282686, 1551023908071694, 114822232823946580, 2076662135229901000, 156103492655199900000 ]
[ "nonn" ]
A372486
[ 1, 0, 3, 16, 15, 11704, 1105685, 11327177474, 244115733950627, 4.354777045182131e+21, 8.214950835161137e+27, 4.262928316873073e+38, 7.528468333926811e+48, 3.3377406930406525e+60 ]
[ "nonn", "frac" ]
A328432
[ 1, 1, 2, 5, 15, 53, 216, 994, 5076, 28403, 172538, 1129511, 7919314, 59150556, 468504022, 3919569708, 34518111783, 319030219223, 3086250047021, 31174921402976, 328110078110137, 3591110146030066, 40800503952916640, 480429785491094850, 5854374278697302000 ]
[ "nonn" ]
A195875
[ 1, 5, 6, 6, 7, 9, 9, 10, 11, 11, 13, 13, 14, 14, 15, 16, 16, 17, 17, 19, 19, 21, 22, 22, 23, 23, 26, 26, 29, 31, 31, 32, 32, 32, 33, 34, 34, 35, 37, 38, 39, 41, 42, 43, 46, 47, 48, 48, 48, 50, 51, 54, 58, 59, ...
[ "nonn" ]
A363356
[ 1, 1, 5, 52, 821, 17536, 473497, 15476224, 594230345, 26221431808, 1307680266221, 72739285725184, 4465197522732157, 299855584017743900, 21867349264346910000, 1.721013285639522e+21, 1.4539411213020985e+23, 1.3123788855563297e+25 ]
[ "nonn" ]
A192158
[ 0, 6, 8, 54, 72, 78, 80, 486, 648, 702, 720, 726, 728, 4374, 5832, 6318, 6480, 6534, 6552, 6558, 6560, 39366, 52488, 56862, 58320, 58806, 58968, 59022, 59040, 59046, 59048, 354294, 472392, 511758, 524880, 529254, 530712, 531198, 531360, 5...
[ "nonn" ]
A254861
[ 0, 4, 22, 102, 903, 6310, 46706, 266823, 2774348, 16531372, 419285780, 3698719206, 33962823012 ]
[ "nonn", "base", "more" ]
A195120
[ 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 16, 16, 16...
[ "nonn" ]
A374964
[ 1, 1, 2, 1, 5, 1, 3, 1, 9, 1, 11, 1, 13, 1, 14, 1, 17, 1, 7, 1, 21, 1, 23, 1, 25, 1, 3, 1, 29, 1, 6, 1, 33, 1, 35, 1, 37, 1, 39, 1, 41, 1, 7, 1, 45, 1, 18, 1, 49, 1, 50, 1, 53, 1, 19, 1, 45, 1, 59, ...
[ "nonn" ]
A369091
[ 1, 2, 6, 36, 260, 2190, 21882, 268856, 3907080, 63977850, 1152946190, 22581979332, 477140664156, 10828556474918, 263163922847490, 6836792356168560, 189694001088036740, 5614994984290506000, 176964200467784930000, 5.921022573291003e+21, 2.095687070842363e+23 ]
[ "nonn" ]
A244915
[ 1, 1, 2, 3, 8, 5, 2, 7, 8, 13, 2, 15, 4, 1, 6, 5, 4, 9, 10, 1, 14, 9, 16, 1, 20, 3, 10, 7, 12, 13, 10, 17, 2, 27, 10, 19, 6, 11, 4, 21, 10, 29, 4, 25, 6, 29, 16, 5, 18, 7, 20, 11, 14, 15, 22, 5, 24, 1, ...
[ "nonn" ]
A382956
[ 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 2, 0, 1, 2, 0, 1, 1, 0, 2, 2, 0, 3, 2, 3, 0, 2, 3, 0, 3, 1, 1, 3, 0, 3, 3, 0, 5, 3, 6, 3, 5, 0, 3, 4, 0, 6, 4, 4, 4, 4, 6, 0, 4, 5, 0, 8, 4, 11, 8, 11, 4, ...
[ "nonn", "tabl" ]
A008344
[ 0, 1, 3, 0, 4, 9, 3, 10, 2, 11, 1, 12, 0, 13, 27, 12, 28, 11, 29, 10, 30, 9, 31, 8, 32, 7, 33, 6, 34, 5, 35, 4, 36, 3, 37, 2, 38, 1, 39, 0, 40, 81, 39, 82, 38, 83, 37, 84, 36, 85, 35, 86, 34, 87, 33, 88, ...
[ "nonn", "easy", "nice", "look" ]
A047388
[ 0, 1, 2, 5, 7, 8, 9, 12, 14, 15, 16, 19, 21, 22, 23, 26, 28, 29, 30, 33, 35, 36, 37, 40, 42, 43, 44, 47, 49, 50, 51, 54, 56, 57, 58, 61, 63, 64, 65, 68, 70, 71, 72, 75, 77, 78, 79, 82, 84, 85, 86, 89, 91, 92, ...
[ "nonn", "easy" ]
A226840
[ 3, 2, 9547, 255763, 9148351, 189637381, 78793186597, 1312901933341 ]
[ "nonn" ]
A008996
[ 1, 3, 5, 7, 13, 17, 19, 21, 33, 35, 43, 51, 71, 85, 95, 111, 113, 117, 131, 147, 153, 179, 209, 219, 221, 233, 247, 249, 281, 287, 291, 319, 335, 353, 381, 383, 393, 455, 463, 467, 473, 485, 489, 499, 513, 515, 531, 533, ...
[ "nonn", "nice" ]
A101445
[ 2, 3, 40087, 251737 ]
[ "nonn" ]
A122186
[ 1, 30, 707, 16886, 403104, 9623140, 229729153, 5484227157, 130922641160, 3125460977225, 74612811302754, 1781200165693270, 42521840081752984, 1015105948653689100, 24233196047277584000, 578508865448619200000 ]
[ "nonn", "easy" ]
A063648
[ 6, 12, 12, 30, 15, 56, 24, 36, 30, 132, 28, 182, 42, 40, 48, 306, 45, 380, 45, 70, 66, 552, 56, 150, 78, 108, 77, 870, 66, 992, 96, 132, 102, 84, 84, 1406, 114, 156, 90, 1722, 91, 1892, 132, 120, 138, 2256, 112, 392, 150...
[ "nonn" ]
A305249
[ 8, 35, 34, 79, 203, 439, 1010, 2382, 5699, 13811, 33747, 82601, 203917, 507126, 1264787, 3160200, 7913799, 19862255, 49931957, 125642182, 316372417, 797186969, 2009925584, 5069682263, 12790992384, 32279577446, 81477816804, 205693851559 ]
[ "nonn" ]
A209224
[ 2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 15, 81, 60, 81, 13, 25, 225, 100, 126, 169, 19, 40, 625, 240, 196, 234, 361, 28, 64, 1600, 576, 504, 324, 456, 784, 41, 104, 4096, 1296, 1296, 900, 576, 896, 1681, 60, 169, 10816, 2916, 3...
[ "nonn", "tabl" ]
A265416
[ 0, 1, 1, 2, 6, 1, 5, 3, 5, 7, 9, 2, 4, 6, 6, 4, 59, 6, 61, 8, 63, 10, 14, 3, 12, 5, 5, 7, 7, 7, 58, 5, 10, 60, 11, 7, 10, 62, 13, 9, 13, 64, 42, 11, 11, 15, 66, 4, 55, 13, 13, 6, 68, 6, 57, 8, 15, 8, ...
[ "nonn" ]
A071223
[ 2, 2, 6, 2, 12, 24, 2, 20, 72, 120, 2, 30, 172, 480, 720, 2, 42, 352, 1512, 3600, 5040, 2, 56, 646, 3976, 14184, 30240, 40320, 2, 72, 1094, 9144, 45992, 143712, 282240, 362880, 2, 90, 1742, 18990, 128288, 557640, 1575648, 2903040,...
[ "nonn", "tabl", "easy", "nice" ]
A317207
[ 1, 1, 1, 2, 1, 3, 2, 2, 4, 3, 3, 2, 3, 2, 5, 4, 4, 3, 4, 3, 3, 4, 3, 3, 2, 6, 5, 5, 4, 5, 4, 4, 5, 4, 4, 3, 4, 3, 5, 4, 4, 3, 4, 3, 3, 7, 6, 6, 5, 6, 5, 5, 6, 5, 5, 4, 5, 4, 6, 5, 5, 4, 5, 4...
[ "nonn", "base" ]
A003330
[ 7, 14, 21, 28, 33, 35, 40, 42, 47, 49, 54, 56, 59, 61, 66, 68, 70, 73, 75, 77, 80, 84, 85, 87, 91, 92, 94, 96, 98, 99, 103, 105, 106, 110, 111, 112, 113, 117, 118, 122, 124, 125, 129, 131, 132, 133, 136, 137, 138, 140,...
[ "nonn", "easy" ]
A345022
[ 3, 4, 30, 12, 0, 120, 1260, 840, 0, 2520, 0, 27720, 0, 0, 6126120, 720720, 0, 12252240, 0, 0, 0, 232792560, 0, 5354228880, 0, 26771144400, 0, 80313433200, 0, 4658179125600, 72201776446800, 0, 0, 0, 0, 144403552893600, 0, 0, 0, 53429314570...
[ "nonn" ]
A200533
[ 87, 1873, 32556, 494555, 6820330, 87098434, 1056792824, 12348422785, 140068079857, 1551453118671, 16861973522704, 180469353488204, 1907201493832312, 19944555935687460, 206749466424764000 ]
[ "nonn" ]
A013976
[ 1, 2, 6, 32, 600, 20544, 1218224, 160241152, 42129744768, 21293228876800, 22220602090444030, 45959959305969140000, 1.8870285194939162e+23, 1.5663708298988847e+27, 2.580161428251731e+31, 8.513007642572088e+35 ]
[ "nonn", "nice" ]
A294161
[ 2, 23, 292, 4068, 62861, 1075562, 20275944, 418724047, 9418874022, 229535650138, 6029910590473, 169978358728536, 5120224516689050, 164192864744507620, 5585978669387706000, 200988595873323120000, 7.62678054725334e+21, 3.044310184446687e+23, 1.2752396616363975e+25, 5.593888485723...
[ "nonn" ]
A054030
[ 1, 2, 2, 3, 2, 3, 2, 4, 4, 3, 4, 4, 2, 4, 4, 3, 4, 3, 2, 5, 5, 4, 3, 4, 2, 4, 4, 5, 4, 5, 5, 4, 5, 5, 4, 4, 4, 5, 4, 4, 2, 5, 4, 5, 6, 5, 5, 5, 5, 5, 5, 6, 5, 5, 4, 5, 6, 5, 4, 4, 5, 4, 5, 4...
[ "nonn", "easy" ]
A258124
[ 1, 2, 2, 1, 2, 1, 2, 2, 0, 0, 2, 2, 1, 2, 0, 0, 0, 4, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 4, 2, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2...
[ "nonn", "tabf" ]
A082956
[ 1, 1, 1, 1, 1, 5, 5, 1, 5, 11, 11, 7, 7, 1, 11, 29, 29, 17, 17, 1, 47, 17, 17, 37, 79, 1, 31, 397, 397, 47, 47, 53, 127, 1, 53, 67, 67, 41, 23, 23, 23, 41, 41, 113, 107, 31, 31, 79, 157, 61, 353, 157, 157, 601,...
[ "nonn" ]
A148210
[ 1, 1, 2, 4, 12, 36, 121, 418, 1518, 5680, 21838, 85728, 342817, 1391551, 5723767, 23807834, 100015361, 423803675, 1809693470, 7780676837, 33658840612, 146415125415, 640107365528, 2811273477261, 12398413335191, 54889792298990, 243863779060244, 1086965933597889, ...
[ "nonn", "walk" ]
A090219
[ 1, -1, 4, 1, -8, 10, -1, 12, -30, 20, 1, -64, 600, -1600, 1225, -1, 80, -1000, 4000, -6125, 3136, 1, -96, 1500, -8000, 18375, -18816, 7056, -1, 448, -21000, 280000, -1500625, 3687936, -4148928, 1728000, 1, -512, 28000, -448000, 3001250,...
[ "sign", "easy", "tabl" ]
A197163
[ 3, 37, 306, 2573, 21826, 183864, 1566649, 13348347, 113287557, 961919858, 8175928275, 69488321244, 590397703542, 5016197696693, 42623892116103, 362188045090417, 3077507174666026, 26149460063126684, 222193621588208540 ]
[ "nonn" ]
A365543
[ 1, 1, 1, 2, 1, 2, 3, 2, 2, 3, 5, 3, 3, 3, 5, 7, 5, 5, 5, 5, 7, 11, 7, 8, 6, 8, 7, 11, 15, 11, 11, 11, 11, 11, 11, 15, 22, 15, 17, 15, 14, 15, 17, 15, 22, 30, 22, 23, 23, 22, 22, 23, 23, 22, 30, 42, 30, ...
[ "nonn", "tabl" ]
A181314
[ 0, 0, 1, 2, 5, 6, 13, 17, 27, 38, 61, 80, 125, 174, 245, 359, 509, 727, 1021, 1484, 2029, 3006, 4093, 6029, 8183, 12158, 16351, 24380, 32765, 48848, 65533, 97919, 131005, 196094, 262121, 392363, 524285, 785406, 1048445, 1571309, 2097149...
[ "nonn" ]
A290763
[ 17, 56, 207, 839, 3579, 16124, 76037, 373772, 1907842, 10080307, 54988156, 308997810, 1785241070, 10586718392, 64343528516, 400271482199, 2545649131486, 16533901290930, 109563921896553, 740108482190948, 5092272608657314, 35661352536071044 ]
[ "nonn" ]