id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A353472
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0...
[ "nonn" ]
A314147
[ 1, 5, 11, 16, 22, 27, 33, 38, 43, 48, 55, 60, 65, 71, 75, 81, 87, 93, 98, 103, 107, 114, 120, 125, 131, 135, 140, 146, 153, 158, 163, 167, 173, 179, 185, 191, 195, 200, 205, 212, 218, 223, 227, 233, 238, 244, 251, 255, 2...
[ "nonn" ]
A029525
[ 1, 7, 51, 63, 119, 3717, 91153, 147037, 208747, 2707075, 3097013 ]
[ "nonn", "base", "more" ]
A256376
[ 23, 83, 163, 263, 383, 523, 683, 863, 1063, 1283, 1523, 1783, 2063, 2683, 3023, 4583, 5023, 5483, 6983, 7523, 8663, 9883, 11863, 14783, 16363, 17183, 19763, 20663, 25463, 29663, 30763, 31883, 33023, 34183, 35363, 36563, 37783, 39023, 40283,...
[ "nonn", "easy" ]
A285764
[ 1, 2, 3, 3, 3, 3, 4, 5, 6, 6, 6, 6, 7, 8, 9, 10, 11, 12, 12, 12, 12, 12, 12, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 21, 21, 21, 22, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 26, 27, 28, 29, 30, 31, 3...
[ "nonn" ]
A334539
[ 1, 3, 8, 11, 25, 20, 40, 9, 45, 41, 158, 200, 14, 185, 636, 589, 595, 432, 773, 3196, 1249, 50, 7703, 7661, 12954, 25629, 14885, 41189, 23200, 87410, 33969, 63225, 20486, 212825, 58621, 152952, 135263, 2743830, 729008, 384150, 908629, ...
[ "nonn" ]
A093931
[ 3, 7, 11, 5, 19, 13, 17, 23, 29, 43, 37, 31, 41, 47, 53, 59, 73, 67, 61, 71, 97, 83, 79, 89, 103, 107, 101, 127, 113, 109, 131, 137, 151, 157, 163, 149, 139, 173, 167, 181, 191, 197, 193, 179, 241, 227, 223, 229, 233, ...
[ "less", "nonn" ]
A176482
[ 1, 1, 1, 1, 3, 1, 1, 9, 9, 1, 1, 29, 35, 29, 1, 1, 94, 120, 120, 94, 1, 1, 304, 395, 415, 395, 304, 1, 1, 983, 1284, 1369, 1369, 1284, 983, 1, 1, 3179, 4159, 4454, 4519, 4454, 4159, 3179, 1, 1, 10281, 13457, 14431, 147...
[ "nonn", "tabl", "easy" ]
A338080
[ 9, 57, 63, 143, 171, 247, 323, 399, 407, 481, 629, 703, 721, 779, 899, 927, 1121, 1239, 1407, 1441, 1463, 1703, 1729, 2419, 2529, 2639, 2737, 3289, 3367, 3689, 4081, 4847, 4879, 4921, 5291, 5339, 5871, 6061, 6479, 6489, 6601, 6721, ...
[ "nonn" ]
A277594
[ 7, 17, 27, 37, 47, 57, 67, 70, 77, 87, 97, 107, 117, 127, 137, 147, 157, 167, 170, 177, 187, 197, 207, 217, 227, 237, 247, 257, 267, 270, 277, 287, 297, 307, 317, 327, 337, 347, 357, 367, 370, 377, 387, 397, 407, 417, 427, ...
[ "nonn", "easy", "base" ]
A203594
[ 3, 9, 18, 26, 26, 12, 98, 366, 796, 996, 534, 5366, 23308, 56516, 75120, 41600, 448400, 2053480, 5180820, 7049350, 3952950, 44504530, 210527016, 543851924, 750110424, 423385872, 4900761656, 23667951384, 62074790736, 86372858208, 48953570736 ]
[ "nonn" ]
A369292
[ 1, 1, 1, 1, 2, 4, 1, 3, 8, 18, 1, 4, 14, 42, 108, 1, 5, 22, 84, 276, 780, 1, 6, 32, 150, 612, 2160, 6600, 1, 7, 44, 246, 1212, 5220, 19560, 63840, 1, 8, 58, 378, 2196, 11280, 50880, 200760, 693840, 1, 9, 74, 552, 3708,...
[ "nonn", "tabl" ]
A297261
[ 7, 14, 15, 21, 22, 23, 28, 29, 30, 31, 35, 36, 37, 38, 39, 42, 43, 44, 45, 46, 47, 49, 56, 63, 70, 77, 84, 91, 98, 99, 105, 106, 112, 113, 119, 120, 126, 127, 133, 134, 140, 141, 147, 148, 149, 154, 155, 156, 161, 162,...
[ "nonn", "base", "easy" ]
A107436
[ 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11...
[ "nonn" ]
A067908
[ 2, 3, 5, 7, 11, 13, 29, 47, 101, 257, 349, 1201, 1907, 3533, 122449, 360233, 420271, 9172043, 10700717, 11015860931, 825141735599, 8577010309290077, 25232684617711470, 34344487396329504, 63627402961872790 ]
[ "nonn" ]
A336540
[ 1, 3, 39, 705, 14799, 338430, 8181597, 205655304, 5320853535, 140761481673, 3790170529806, 103531954949526, 2861975199328581, 79913364673955870, 2250605304332901000, 63855671824327590000, 1.823518942311678e+21, 5.237157811712024e+22, 1.5117376695659488e+24 ]
[ "nonn" ]
A150882
[ 1, 2, 8, 33, 149, 671, 3124, 14572, 69027, 327738, 1568883, 7526367, 36282157, 175229271, 848963109, 4119569655, 20033898783, 97555323988, 475811775727, 2323275614661, 11358048112728, 55579446613429, 272240840947922, 1334566048873148, 6547544693115974, 3214519531654...
[ "nonn", "walk" ]
A330146
[ 1, 0, 1, 1, 3, 4, 7, 9, 13, 16, 24, 29, 39, 51, 69, 87, 118, 152, 199, 256, 330, 418, 534, 670, 838, 1046, 1296, 1603, 1960, 2412, 2936, 3588, 4342, 5288, 6364, 7713, 9272, 11186, 13389, 16117, 19213, 23032, 27408, 32715, 38810,...
[ "nonn", "easy" ]
A118065
[ 1, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 6...
[ "nonn" ]
A206748
[ 139744, 18037344, 2475217568, 343128343904, 47661729160320, 6623662914493232, 920635927293402900, 127966527042768100000, 1.7787331384989306e+22, 2.4724477617797344e+24, 3.43671940370501e+26 ]
[ "nonn" ]
A165902
[ 0, 1, 1, 2, 5, 23, 158, 2021, 40415, 1513724, 89901329, 10021444493, 1779549303200, 593535825170357, 315835356239140740, 315745107820598850000, 5.038593177730762e+23, 1.510702921925355e+27, 7.231341194731243e+30 ]
[ "nonn" ]
A117917
[ 1, 4, 15, 52, 175, 582, 1927, 6370, 21045, 69514, 229597, 758316, 2504557, 8272000, 27320571, 90233728, 298021771, 984299058, 3250918963, 10737055966, 35462086881, 117123316630, 386832036793, 1277619427032, 4219690317913 ]
[ "nonn", "easy" ]
A129692
[ 2, 3, 5, 7, 17, 19, 23, 29, 31, 41, 43, 47, 59, 61, 137, 139, 157, 191, 233, 239, 251, 331, 347, 349, 379, 383, 479, 491, 1097, 1103, 1117, 1259, 1531, 1867, 1871, 1913, 2011, 2777, 2797, 3037, 3067, 3833, 3929, 3931, 8779, 87...
[ "nonn", "base" ]
A366703
[ 7, 239, 157, 227, 40351, 62047, 46747, 59693 ]
[ "nonn", "hard", "more" ]
A020675
[ 0, 2, 7, 8, 9, 15, 18, 25, 28, 30, 32, 36, 39, 46, 50, 57, 60, 63, 65, 71, 72, 78, 79, 81, 95, 98, 100, 105, 112, 113, 114, 120, 126, 128, 130, 135, 144, 156, 161, 162, 169, 175, 177, 183, 184, 190, 191, 193, 200, 207,...
[ "easy", "nonn" ]
A356017
[ 1, 2, 3, 12, 30, 54, 60, 92, 165, 186, 190, 247, 249, 287, 446, 671, 674, 910, 1089, 6310, 6335, 6815, 6844, 9116, 9243, 10215, 11805, 12234, 12244, 12249, 12467, 12522, 13074, 13481, 13556, 13564, 14751, 15505, 15597, 16158, 16220, 1...
[ "nonn" ]
A041296
[ 12, 13, 38, 165, 203, 571, 774, 3667, 8108, 11775, 290708, 302483, 895674, 3885179, 4780853, 13446885, 18227738, 86357837, 190943412, 277301249, 6846173388, 7123474637, 21093122662, 91495965285, 112589087947, 316674141179, 429263229126, 2033727057683 ]
[ "nonn", "frac", "cofr", "easy" ]
A358808
[ 1, 0, 1, 33, 2425, 357046, 92052610 ]
[ "nonn", "hard", "more" ]
A037884
[ 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 1, 2, 3, 4, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 1, 2, 3, 4, 5, 1, 1...
[ "nonn", "base" ]
A164409
[ 13, 22, 39, 69, 121, 212, 372, 653, 1146, 2011, 3529, 6193, 10868, 19072, 33469, 58734, 103071, 180877, 317417, 557028, 977516, 1715421, 3010354, 5282803, 9270673, 16268897, 28549924, 50101624, 87922221, 154292742, 270764887, 475159253 ]
[ "nonn", "easy" ]
A151793
[ 1, 9, 17, 73, 81, 137, 193, 585, 593, 649, 705, 1097, 1153, 1545, 1937, 4681, 4689, 4745, 4801, 5193, 5249, 5641, 6033, 8777, 8833, 9225, 9617, 12361, 12753, 15497, 18241, 37449, 37457, 37513, 37569, 37961, 38017, 38409, 38801, 41545, 4...
[ "nonn" ]
A307062
[ 1, 1, 3, 10, 29, 88, 264, 790, 2366, 7086, 21216, 63523, 190201, 569485, 1705121, 5105383, 15286247, 45769238, 137039743, 410316854, 1228548190, 3678451550, 11013817655, 32976968175, 98737827756, 295635383297, 885175234817, 2650343093602, 7935511791620, 2376...
[ "nonn" ]
A030173
[ 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 20, 21, 22, 24, 26, 27, 28, 29, 30, 32, 34, 35, 36, 38, 39, 40, 41, 42, 44, 45, 46, 48, 50, 51, 52, 54, 56, 57, 58, 59, 60, 62, 64, 65, 66, 68, 69, 70, ...
[ "nonn", "easy", "nice" ]
A303803
[ 3, 7, 9, 15, 27, 47, 83, 161, 321, 641, 1293, 2665, 5603, 11957, 25767, 55917, 122063, 267835, 590085, 1303845, 2886875, 6401619, 14212171, 31580661, 70221799, 156218863, 347655099, 773886975, 1723025065, 3836799089, 8544630497 ]
[ "nonn" ]
A068279
[ 1, 1100, 100001000, 751345249556000, 4.665501559174857e+23, 2.394311902738136e+34, 1.0155158394829044e+47, 3.559723539007566e+61 ]
[ "nonn" ]
A061509
[ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 2, 6, 18, 54, 162, 486, 1458, 4374, 13122, 39366, 4, 12, 36, 108, 324, 972, 2916, 8748, 26244, 78732, 8, 24, 72, 216, 648, 1944, 5832, 17496, 52488, 157464, 16, 48, 144, 432, 1296, 3888, ...
[ "base", "less", "nonn" ]
A384670
[ 1, 67, 41, 29, 23, 19, 16, 14, 12, 11, 10, 9, 17, 8, 7, 13, 19, 6, 11, 16, 5, 14, 9, 13, 17, 4, 19, 11, 18, 7, 10, 13, 19, 3, 29, 17, 11, 19, 8, 18, 5, 17, 12, 7, 9, 11, 13, 15, 21, 35, 2, 35, 21, 15, 13, 1...
[ "nonn", "easy" ]
A135161
[ -2, -3, 11, 183, 1679, 13407, 101231, 743103, 5367359, 38380287, 272649551, 1928319423, 13596611039, 95666704767, 672114757871, 4717029550143, 33080299566719, 231867445262847, 1624598512962191, 11379820536259264, 79696895378138400, 558069016462630500, 3907436831406718500 ...
[ "easy", "sign" ]
A105611
[ 1, 1, 3, 15, 165, 1155, 49665, 844305, 48125385, 1491886935, 1018958776605, 13246464095865, 36176093445807310, 4594363867617529000, 1.5207344401814022e+21, 3.908287511266203e+23 ]
[ "easy", "nonn" ]
A126204
[ 2, 5, 11, 17, 37, 53, 89, 71, 101, 179, 137, 193, 233, 257, 251, 401, 311, 373, 347, 457, 661, 479, 547, 599, 617, 641, 683, 907, 881, 773, 827, 809, 941, 1033, 977, 1289, 1201, 1187, 1229, 1223, 1277, 1361, 1597, 1493, 1447, ...
[ "nonn" ]
A294174
[ 0, 10, 1988, 14697, 83292, 1503397, 18859052, 93952013, 89171409882, 9646383703961, 209456854921713, 3950430820867201, 1.3113506646374409e+22 ]
[ "nonn", "more", "nice" ]
A315210
[ 1, 6, 10, 14, 20, 25, 29, 34, 40, 44, 48, 54, 60, 64, 68, 74, 79, 83, 88, 94, 98, 102, 108, 114, 118, 122, 128, 133, 137, 142, 148, 152, 156, 162, 168, 172, 176, 182, 187, 191, 196, 202, 206, 210, 216, 222, 226, 230, 236...
[ "nonn" ]
A323731
[ 1, 2, 2, 3, 4, 1, 2, 2, 2, 2, 5, 2, 4, 2, 1, 2, 5, 2, 2, 4, 2, 1, 2, 4, 2, 2, 2, 2, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 3, 1, 5, 10, 3, 2, 5, 2, 2, 2, 1, 4, 2, 3, 1, 6, 2, 2, 2, 6, 4, 4, 3, ...
[ "nonn" ]
A020538
[ 1, 97, 1921, 32257, 522241, 8380417, 134184961, 2147352577, 34359214081, 549753716737, 8796084633601, 140737454800897, 2251799679467521, 36028796482093056, 576460750155939840, 9223372028264841000, 147573952555316670000, 2.3611832412973837e+21 ]
[ "nonn", "easy" ]
A167128
[ 1, 1, 2, 1, 12, 5, 1, 56, 84, 15, 1, 240, 1025, 510, 52, 1, 992, 10980, 12155, 3030, 203, 1, 4032, 109865, 250250, 119700, 18396, 877, 1, 16256, 1056804, 4754295, 4037250, 1093526, 115892, 4140, 1, 65280, 9925025, 85866270, 125131902, ...
[ "nonn", "tabl" ]
A191230
[ 1, 3, 5, 7, 8, 10, 12, 14, 17, 19, 21, 23, 24, 26, 28, 30, 33, 35, 37, 39, 40, 42, 44, 46, 49, 51, 53, 55, 56, 58, 60, 62, 65, 67, 69, 72, 74, 76, 78, 79, 81, 83, 85, 88, 90, 92, 94, 95, 97, 99, 101, 104, 106, ...
[ "nonn" ]
A312395
[ 1, 4, 8, 14, 17, 24, 27, 33, 35, 40, 45, 48, 56, 58, 65, 67, 73, 75, 79, 88, 90, 97, 97, 106, 107, 110, 119, 121, 130, 129, 137, 138, 142, 151, 152, 161, 161, 170, 169, 173, 183, 183, 193, 192, 202, 201, 204, 216, 214, ...
[ "nonn" ]
A108380
[ 1, 1, 1, 1, 2, 1, 2, 3, 2, 3, 5, 5, 6, 6, 4, 5, 5, 5, 7, 7, 10, 5, 8, 7, 12, 7, 10, 9, 14, 13, 11, 7, 14, 11, 17, 9, 18, 14, 18, 9, 19, 12, 17, 15, 14, 14, 22, 15, 16, 20, 20, 17, 18, 22, 23, 17, 24, 19...
[ "nonn" ]
A127630
[ 1, 1, -3, -3, 5, 5, -7, -7, 9, 9, -11, -11, 13, 13, -15, -15, 17, 17, -19, -19, 21, 21, -23, -23, 25, 25, -27, -27, 29, 29, -31, -31, 33, 33, -35, -35, 37, 37, -39, -39, 41, 41, -43, -43, 45, 45, -47, -47, 49, 49, -5...
[ "sign", "easy" ]
A381661
[ 2, 5, 11, 13, 37, 41, 67, 73, 79, 101, 137, 211, 239, 271, 353, 2161, 4649, 8779, 16763, 21401, 21649, 25601, 27961, 52579, 123551, 333667, 513239, 538987, 1676321 ]
[ "nonn", "base", "more" ]
A182457
[ 0, 1, 1, 2, 3, 2, 1, 3, 4, 4, 7, 7, 2, 2, 5, 11, 8, 4, 15, 4, 1, 5, 6, 8, 1, 9, 10, 10, 17, 26, 23, 10, 7, 5, 2, 11, 23, 32, 15, 13, 36, 18, 19, 42, 7, 25, 38, 11, 35, 43, 6, 4, 25, 48, 13, 20, 37, 0, ...
[ "nonn", "easy" ]
A129136
[ 1, 0, 28, 168, 1890, 20328, 244860, 3181464, 44543499, 668147480, 10690367688, 181736238320, 3271252308324, 62153793831024, 1243075876659240, 26104593409789776, 574301055015449660, 13208924265355241000 ]
[ "nonn" ]
A388756
[ 9, 0, 6, 7, 6, 7, 6, 5, 5, 1, 6, 7, 7, 3, 1, 2, 2, 0, 2, 4, 6, 5, 9, 6, 1, 6, 8, 6, 7, 9, 9, 1, 1, 8, 6, 6, 6, 1, 7, 5, 3, 2, 6, 5, 9, 9, 5, 5, 3, 5, 3, 3, 5, 5, 2, 7, 5, 1, 9, 8, 3, 3, 3, 8...
[ "nonn", "cons" ]
A192946
[ 1, 1, 3, 21, 181, 1746, 18039, 195214, 2184381, 25067856, 293420578, 3489516381, 42044519283, 512146618088, 6296546349018, 78031090301868, 973723814391957, 12224652295383324, 154299365902579040, 1956876044969421600, 24924046596321583000 ]
[ "nonn" ]
A170702
[ 1, 21, 420, 8400, 168000, 3360000, 67200000, 1344000000, 26880000000, 537600000000, 10752000000000, 215040000000000, 4300800000000000, 86016000000000000, 1720320000000000000, 34406400000000000000 ]
[ "nonn" ]
A139661
[ 409, 433, 457, 577, 769, 937, 1033, 1249, 1657, 1753, 1777, 1801, 1993, 2089, 2161, 2473, 2593, 2617, 2857, 3001, 3217, 3313, 3433, 3673, 3697, 3793, 3889, 4129, 4201, 4297, 4441, 4513, 4657, 5113, 5449, 5521, 5737, 5857, 5881, 6073, 61...
[ "nonn", "easy" ]
A104423
[ 5, 7, 8, 20, 25, 26, 45, 47, 50, 95, 100, 101, 102, 105, 107, 109, 110, 121, 145, 149, 155, 156, 158, 160, 161, 165, 167, 168, 169, 171, 177, 180, 181, 205, 209, 210, 271, 272, 275, 277, 279, 284, 288, 290, 292, 297, 299, ...
[ "nonn", "base" ]
A381701
[ 2, 7, 9, 3, 3, 5, 9, 6, 4, 9 ]
[ "nonn", "cons", "more" ]
A353007
[ 0, 2, 4, 6, 8, 11, 20, 24, 26, 28, 33, 40, 42, 46, 48, 55, 60, 62, 64, 68, 77, 80, 82, 84, 86, 99, 101, 110, 112, 114, 116, 118, 121, 141, 161, 181, 204, 206, 208, 211, 222, 233, 240, 246, 248, 255, 260, 264, 268, 277,...
[ "nonn", "base" ]
A176791
[ 1, 1, 1, 1, 3, 1, 1, 7, 7, 1, 1, 15, 455, 15, 1, 1, 31, 4495, 4495, 31, 1, 1, 63, 39711, 553270671, 39711, 63, 1, 1, 127, 333375, 89356415775, 89356415775, 333375, 127, 1, 1, 255, 2731135, 12801990477375, 6.299219751263946e+23, 128019...
[ "nonn", "tabl", "easy" ]
A325168
[ 0, 0, 0, 1, 3, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29, 32, 33, 36, 37, 40, 41, 44, 45, 48, 49, 52, 53, 56, 57, 60, 61, 64, 65, 68, 69, 72, 73, 76, 77, 80, 81, 84, 85, 88, 89, 92, 93, 96, 97, 100, 101, ...
[ "nonn", "easy" ]
A310774
[ 1, 4, 7, 12, 15, 20, 24, 28, 32, 37, 38, 45, 47, 51, 56, 60, 63, 71, 70, 77, 80, 83, 87, 93, 94, 102, 104, 110, 110, 117, 119, 123, 128, 134, 134, 143, 144, 146, 152, 156, 157, 167, 167, 174, 176, 181, 182, 188, 191, 1...
[ "nonn" ]
A186178
[ 1078197169699, 159099595031390, 12251749347425002, 629512200937396000, 23974440869491730000, 719176668433423000000, 1.7695100284866124e+22, 3.676640806754571e+23, 6.594122451689241e+24 ]
[ "nonn" ]
A356265
[ 0, 1, 0, 1, 2, 0, 1, 8, 2, 0, 1, 21, 25, 2, 0, 1, 49, 152, 55, 2, 0, 1, 106, 697, 670, 117, 2, 0, 1, 223, 2756, 5493, 2509, 243, 2, 0, 1, 459, 9966, 36105, 33669, 8838, 497, 2, 0, 1, 936, 34095, 206698, 342710, 18430...
[ "nonn", "tabl" ]
A021193
[ 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2, 9, 1, 0, 0, 5, 2...
[ "nonn", "cons", "easy" ]
A305014
[ 8, 306, 455, 2200, 30457, 119835, 640900, 6449924, 41160483, 271320922, 2274614514, 17677895427, 132521311532, 1072936215193, 8750546462598, 69515327539782, 564697055232340, 4648309561233697, 37766275954736456 ]
[ "nonn" ]
A148645
[ 1, 1, 3, 6, 23, 61, 259, 779, 3436, 11116, 50120, 170775, 782661, 2770992, 12847938, 46827027, 218941164, 816506936, 3842355699, 14601045443, 69068143075, 266598722383, 1266449907569, 4953581862226, 23613990259234, 93420951221186, 446661239295308, 17846623987935...
[ "nonn", "walk" ]
A256094
[ 1, 2, 2, 3, 4, 3, 4, 5, 4, 6, 7, 7, 8, 8, 7, 8, 8, 10, 10, 12, 13, 14, 11, 13, 13, 11, 14, 16, 15, 18, 17, 16, 15, 17, 17, 20, 20, 23, 23, 21, 21, 21, 19, 23, 22, 24, 26, 26, 23, 25, 24, 28, 29, 31, 30, 32,...
[ "nonn", "easy" ]
A321414
[ 0, 0, 1, 0, 2, 0, 0, 3, 0, 1, 0, 4, 2, 3, 0, 0, 5, 0, 6, 0, 1, 0, 6, 0, 10, 6, 4, 0, 0, 7, 4, 15, 0, 12, 0, 1, 0, 8, 0, 21, 2, 20, 12, 5, 0, 0, 9, 0, 28, 24, 35, 0, 21, 0, 1, 0, 10, 6, 36, 0, 64, ...
[ "nonn", "tabl" ]
A123125
[ 1, 0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 11, 11, 1, 0, 1, 26, 66, 26, 1, 0, 1, 57, 302, 302, 57, 1, 0, 1, 120, 1191, 2416, 1191, 120, 1, 0, 1, 247, 4293, 15619, 15619, 4293, 247, 1, 0, 1, 502, 14608, 88234, 156190, 8823...
[ "nonn", "easy", "tabl", "changed" ]
A380084
[ 0, 1, 5, 13, 59, 502, 3086, 32728, 421769, 8386552, 65004026, 2038040548, 35000607914, 1421414035177, 16443388379486, 254428547171833, 8299070462599934, 414388820258496600, 12913991195998810000, 269894765095528960000, 9.577265986738655e+21, 4.869115301808282e+23 ]
[ "nonn" ]
A155924
[ 131, 151, 313, 383, 797, 3288823, 7493947, 312989213, 79091719097, 1884468644881, 191259232952191, 13388297179288332, 3101199511159911000, 327274601898106500000, 1.2084381777878777e+24, 3.0169296573839383e+26 ]
[ "base", "more", "nonn" ]
A027760
[ 2, 6, 2, 30, 2, 42, 2, 30, 2, 66, 2, 2730, 2, 6, 2, 510, 2, 798, 2, 330, 2, 138, 2, 2730, 2, 6, 2, 870, 2, 14322, 2, 510, 2, 6, 2, 1919190, 2, 6, 2, 13530, 2, 1806, 2, 690, 2, 282, 2, 46410, 2, 66, 2, 1590, 2, ...
[ "nonn", "frac" ]
A254848
[ 576, 1369, 2916, 6889, 16900, 42436, 103684, 250000, 595984, 1447209, 3541924, 8761600, 21399876, 52186176, 126067984, 306915361, 746710276, 1830556225, 4462774416, 10904371776, 26485609536, 64593747409, 157115518884 ]
[ "nonn" ]
A234640
[ 1, 25, 29, 99, 125, 137, 243, 279, 281, 309, 317, 343, 361, 373, 461, 509, 519, 585, 603, 641, 693, 703, 709, 725, 747, 783, 807, 809, 875, 883, 895, 905, 929, 933, 979, 995, 1003, 1007, 1043, 1059, 1091, 1121, 1133, 1323, 1591,...
[ "nonn" ]
A311320
[ 1, 4, 8, 12, 16, 21, 27, 31, 36, 39, 42, 49, 53, 59, 62, 64, 68, 74, 79, 85, 88, 91, 100, 100, 106, 110, 114, 118, 122, 126, 132, 136, 140, 152, 149, 154, 157, 161, 166, 172, 176, 180, 183, 187, 203, 198, 203, 206, 209, ...
[ "nonn" ]
A344913
[ 1, 0, 1, 0, -2, 2, 0, 4, -12, 6, 0, -8, 56, -72, 24, 0, 16, -240, 600, -480, 120, 0, -32, 992, -4320, 6240, -3600, 720, 0, 64, -4032, 28896, -67200, 67200, -30240, 5040, 0, -128, 16256, -185472, 653184, -1008000, 766080, -282240, ...
[ "sign", "tabl" ]
A300098
[ 6, 10, 28, 52, 76, 184, 248, 376, 424, 488, 584, 664, 1335, 3729, 3801, 6501, 7385, 9669, 10461, 16345, 17815, 26571, 27895, 28479, 45237, 69485, 81835, 123411, 124345, 140465, 207005, 341665, 361749, 396815, 526809, 592491, 890165, 977727, ...
[ "nonn" ]
A356152
[ 1, 2, 3, 1, 1, 3, 1, 1, 3, 2, 1, 3, 1, 2, 3, 1, 1, 6, 1, 5, 3, 2, 1, 3, 5, 2, 3, 1, 1, 6, 1, 1, 3, 2, 5, 9, 1, 2, 3, 5, 1, 3, 1, 1, 9, 2, 1, 3, 7, 5, 3, 1, 1, 6, 5, 7, 3, 2, 1, 15, 1, 2, 3, ...
[ "nonn", "frac" ]
A383999
[ 1, 2, 0, 1, 3, 1, 2, 0, 1, 2, 0, 1, 3, 1, 2, 0, 1, 3, 1, 2, 0, 1, 2, 0, 1, 3, 1, 2, 0, 1, 2, 0, 1, 3, 1, 2, 0, 1, 3, 1, 2, 0, 1, 2, 0, 1, 3, 1, 2, 0, 1, 3, 1, 2, 0, 1, 2, 0, 1, 3, 1, 2, 0, 1...
[ "nonn" ]
A385660
[ 1, 2, 4, 8, 10, 12, 18, 20, 24, 26, 28, 36, 44, 48, 52, 54, 60, 64, 72, 80, 84, 88, 96, 98, 102, 104, 108, 112, 116, 120, 128, 136, 140, 142, 144, 148, 152, 168, 174, 176, 178, 180, 182, 190, 192, 206, 210, 212, 216, 2...
[ "nonn", "easy" ]
A252070
[ 183, 419, 1497, 5085, 17455, 60245, 206747, 711749, 2455039, 8451165, 29078125, 100127009, 344830169, 1187280673, 4087598979, 14073866379, 48459148697, 166851565147, 574482172193, 1977991833479, 6810453196661, 23449166058617 ]
[ "nonn" ]
A263390
[ 0, 0, 0, 1, 0, 1, 2, 0, 1, 3, 2, 0, 4, 1, 3, 5, 2, 0, 6, 4, 1, 7, 3, 5, 8, 2, 0, 9, 6, 4, 10, 1, 7, 11, 3, 5, 12, 8, 2, 13, 0, 9, 14, 6, 4, 15, 10, 1, 16, 7, 11, 17, 3, 5, 18, 12, 8, 19, 2, 13, 20...
[ "nonn", "easy" ]
A322425
[ 1, 2, 3, 4, 5, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 1, 2, 3, 4, 5, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2...
[ "nonn" ]
A108368
[ 0, 1, 3, 12, 46, 177, 681, 2620, 10080, 38781, 149203, 574032, 2208486, 8496757, 32689761, 125768040, 483870160, 1861604361, 7162191603, 27555258052, 106013953326, 407869825737, 1569206595241, 6037243216260, 23227219260240, 89362594024741, 343806683071203 ]
[ "nonn", "easy" ]
A358780
[ 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 5, 1, 2, 1, 2, 1, 1, 1, 3, 2, 1, 3, 2, 1, 1, 1, 6, 1, 1, 1, 4, 1, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 5, 2, 2, 1, 2, 1, 3, 1, 3, 1, 1, 1, 2, 1, 1, 2, 9...
[ "nonn", "mult" ]
A087811
[ 1, 2, 4, 6, 9, 12, 16, 20, 25, 30, 36, 42, 49, 56, 64, 72, 81, 90, 100, 110, 121, 132, 144, 156, 169, 182, 196, 210, 225, 240, 256, 272, 289, 306, 324, 342, 361, 380, 400, 420, 441, 462, 484, 506, 529, 552, 576, 600, 625...
[ "nonn", "easy" ]
A038080
[ 1, 3, 3, 9, 39, 189, 981, 5490, 31674, 189954, 1170126, 7382745, 47494197, 310712808, 2061987642, 13855192866, 94113385437, 645424668666, 4464027720900, 31110200069511, 218292811705458, 1541172223659249 ]
[ "nonn" ]
A157042
[ 2, 3, 19, 53, 59, 239, 269, 313, 379, 449, 613, 823, 829, 1373, 1723, 2699, 4019, 5209, 5233, 5923, 6079, 6389, 8069, 8663, 8849, 8933, 11239, 11369, 12269, 12503, 13669, 13879, 14543, 15263, 15583, 15649, 16229, 16453, 16619, 17333, 18...
[ "nonn", "easy" ]
A086442
[ 1, 1, 2, 2, 6, 6, 18, 20, 50, 74, 186, 216, 630, 916, 2002, 3040, 7710, 10806, 27594, 40642, 94658, 158492, 364722, 516682, 1333926, 2180772, 4770374, 7845774, 18512790, 28706044, 69273666, 111116576, 251853466, 436650938, 977895330 ]
[ "nonn" ]
A264221
[ 64, 3610, 97520, 2407816, 68008846, 1883268032, 51345531360, 1411162065495, 38813397148320, 1066027094762736, 29288688616590790, 804848533573703400, 22115072006086377000, 607663815006822500000, 1.6697331537936059e+22 ]
[ "nonn" ]
A166584
[ 1, 16, 240, 3600, 54000, 810000, 12150000, 182250000, 2733750000, 41006250000, 615093750000, 9226406250000, 138396093749880, 2075941406246400, 31139121093669120, 467086816404633600, 7006302246063456000 ]
[ "nonn" ]
A167383
[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 8, 9, 9, 9, 10, 10, 11, 11, 11, 11, 11, 11, ...
[ "nonn", "uned" ]
A255729
[ 12, 23, 35, 47, 613, 819, 923, 1029, 1237, 1547, 1653, 1759, 1967, 2071, 2173, 2489, 2597, 27103, 28107, 35149, 39167, 40173, 45197, 53241, 57269, 58271, 60281, 61283, 69347, 70349, 72359, 79401, 85439, 89461, 90463, 91467, 93487, 96503, 98...
[ "nonn", "base", "fini", "full" ]
A165644
[ 2, 16, 2592, 15925248, 5971968000000, 200612260085760000000, 8.326726254393475e+29, 5.632675168894917e+41 ]
[ "nonn" ]
A313488
[ 1, 5, 10, 14, 18, 22, 27, 32, 37, 43, 48, 53, 58, 59, 65, 64, 74, 76, 85, 90, 96, 101, 106, 105, 112, 107, 120, 121, 131, 138, 143, 149, 154, 151, 160, 150, 167, 165, 178, 184, 191, 196, 202, 197, 208, 194, 214, 210, 224...
[ "nonn" ]
A177149
[ 5, 9, 13, 18, 23, 26, 30, 32, 33, 40, 41, 43, 45, 46, 48, 50, 64, 65, 66, 67, 68, 71, 74, 75, 78, 79, 80, 86, 87, 89, 90, 91, 110, 116, 117, 118, 121, 124, 128, 130, 131, 137, 139, 145, 150, 153, 156, 157, 159, 164, ...
[ "nonn", "base" ]
A026532
[ 1, 3, 6, 18, 36, 108, 216, 648, 1296, 3888, 7776, 23328, 46656, 139968, 279936, 839808, 1679616, 5038848, 10077696, 30233088, 60466176, 181398528, 362797056, 1088391168, 2176782336, 6530347008, 13060694016, 39182082048, 78364164096, 235092492288, 470184984...
[ "nonn", "easy" ]
A296302
[ 1, 0, 2, 5, 14, 24, 62, 114, 249, 480, 1022, 1978, 4094, 8064, 16348, 32520, 65534, 130512, 262142, 523270, 1048444, 2095104, 4194302, 8384316, 16777185, 33546240, 67108356, 134201398, 268435454, 536837136, 1073741822, 2147418240, 4294965244, 8589803...
[ "nonn" ]
A260609
[ 40, 58, 58, 125, 118, 125, 241, 250, 250, 241, 525, 532, 610, 532, 525, 1029, 1136, 1334, 1334, 1136, 1029, 2246, 2480, 3343, 3388, 3343, 2480, 2246, 4407, 5418, 7516, 8736, 8736, 7516, 5418, 4407, 9592, 11776, 19069, 22944, 26148, 22...
[ "nonn", "tabl" ]