id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A381929
[ 2, 3, 5, 7, 10, 12, 13, 15, 18, 19, 21, 24, 26, 28, 29, 31, 34, 35, 37, 39, 42, 44, 45, 48, 50, 51, 53, 56, 58, 60, 61, 63, 66, 67, 69, 71, 74, 76, 77, 79, 82, 83, 85, 88, 90, 92, 93, 96, 98, 99, 101, 103, 106, ...
[ "nonn" ]
A132071
[ 1, 2, 2, 3, 5, 3, 4, 7, 7, 4, 5, 9, 11, 9, 5, 6, 11, 16, 16, 11, 6, 7, 13, 22, 27, 22, 13, 7, 8, 15, 29, 43, 43, 29, 15, 8, 9, 17, 37, 65, 79, 65, 37, 17, 9, 10, 19, 46, 94, 136, 136, 94, 46, 19, 10 ]
[ "nonn", "tabl" ]
A008387
[ 1, 42, 462, 2562, 9492, 27174, 65226, 137886, 264936, 472626, 794598, 1272810, 1958460, 2912910, 4208610, 5930022, 8174544, 11053434, 14692734, 19234194, 24836196, 31674678, 39944058, 49858158, 61651128, 75578370, 91917462, 110969082 ]
[ "nonn", "easy" ]
A153341
[ 1, 2, 1, 3, 3, 1, 5, 8, 5, 1, 8, 17, 15, 6, 1, 13, 35, 41, 25, 8, 1, 21, 68, 98, 78, 36, 9, 1, 34, 129, 222, 220, 135, 51, 11, 1, 55, 239, 477, 562, 425, 210, 66, 12, 1, 89, 436, 991, 1355, 1222, 751, 314, 86, ...
[ "nonn", "tabl" ]
A274016
[ 1, 2, 3, 4, 5, 6, 7, 8, 8, 10, 8, 12, 12, 14, 8, 16, 16, 18, 12, 20, 18, 22, 16, 24, 18, 26, 27, 27, 27, 27, 24, 27, 32, 27, 27, 36, 36, 27, 36, 40, 36, 42, 36, 27, 45, 45, 36, 48, 48, 48, 48, 45, 27, 54, 48,...
[ "nonn" ]
A284103
[ 0, 0, 0, 4, 0, 0, 0, 4, 9, 0, 0, 4, 0, 14, 0, 4, 0, 9, 19, 4, 0, 0, 0, 28, 0, 0, 9, 18, 29, 0, 0, 4, 0, 34, 0, 13, 0, 19, 39, 4, 0, 14, 0, 48, 9, 0, 0, 28, 49, 0, 0, 4, 0, 63, 0, 18, 19, 29, 59, 4, ...
[ "nonn", "easy" ]
A153312
[ 2, 3, 3, 2, 14, 2, 2, 25, 25, 2, 2, 36, 86, 36, 2, 2, 47, 140, 140, 47, 2, 2, 76, 241, 334, 241, 76, 2, 2, 159, 479, 737, 737, 479, 159, 2, 2, 404, 1124, 1702, 1960, 1702, 1124, 404, 2, 2, 1135, 2986, 4284, 5120, 512...
[ "nonn", "uned", "tabl" ]
A097018
[ 3, 2, 8, 4, 43, 9, 67, 37, 137, 173, 16, 73, 163, 257, 281, 211, 353, 169, 401, 283, 256, 157, 331, 1024, 193, 1009, 617, 641, 653, 677, 64, 523, 547, 277, 1489, 1811, 313, 977, 1669, 691, 1789, 1447, 4201, 1543, 787, 397, 4...
[ "nonn" ]
A312420
[ 1, 4, 8, 14, 18, 21, 25, 31, 35, 42, 40, 48, 52, 58, 62, 64, 71, 71, 83, 79, 90, 90, 96, 100, 104, 114, 108, 123, 115, 131, 131, 136, 138, 142, 154, 146, 166, 152, 171, 169, 175, 179, 182, 194, 182, 206, 190, 214, 208, ...
[ "nonn" ]
A100824
[ 1, 1, 1, 2, 2, 4, 3, 7, 5, 12, 7, 19, 11, 30, 15, 45, 22, 67, 30, 97, 42, 139, 56, 195, 77, 272, 101, 373, 135, 508, 176, 684, 231, 915, 297, 1212, 385, 1597, 490, 2087, 627, 2714, 792, 3506, 1002, 4508, 1255, 5763, 1575...
[ "easy", "nonn" ]
A099251
[ 1, 1, 3, 15, 91, 603, 4213, 30537, 227475, 1730787, 13393689, 105089229, 834086421, 6684761125, 54022715451, 439742222071, 3602118427251, 29671013856627, 245613376802185, 2042162142208813, 17047255430494496, 142816973618414820 ]
[ "nonn", "easy" ]
A009334
[ 0, 1, 1, 1, 0, 0, -5, 5, -56, 224, -1441, 9029, -64592, 497068, -4153357, 37288173, -358469008, 3672613632, -39954165153, 459970973037, -5587015067704, 71405586701516, -957909748415229, 13458304798985220, -197627582943979070 ]
[ "sign", "easy" ]
A020809
[ 1, 3, 8, 6, 7, 5, 0, 4, 9, 0, 5, 6, 3, 0, 7, 2, 8, 0, 5, 0, 4, 5, 8, 5, 4, 3, 3, 3, 6, 4, 2, 4, 9, 8, 4, 4, 0, 8, 6, 5, 8, 8, 3, 2, 9, 7, 6, 3, 2, 7, 8, 7, 0, 0, 4, 8, 8, 8, 6, 3, 5, 7, 9, 0...
[ "nonn", "cons", "easy" ]
A034709
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 21, 22, 24, 25, 31, 32, 33, 35, 36, 41, 42, 44, 45, 48, 51, 52, 55, 61, 62, 63, 64, 65, 66, 71, 72, 75, 77, 81, 82, 84, 85, 88, 91, 92, 93, 95, 96, 99, 101, 102, 104, 105,...
[ "nonn", "base", "easy", "nice" ]
A070824
[ 0, 0, 0, 1, 0, 2, 0, 2, 1, 2, 0, 4, 0, 2, 2, 3, 0, 4, 0, 4, 2, 2, 0, 6, 1, 2, 2, 4, 0, 6, 0, 4, 2, 2, 2, 7, 0, 2, 2, 6, 0, 6, 0, 4, 4, 2, 0, 8, 1, 4, 2, 4, 0, 6, 2, 6, 2, 2, 0, 10, 0, 2, 4, ...
[ "nonn", "easy" ]
A202648
[ 2, 8, 126, 10016, 3648810, 5616280768, 35610018145138 ]
[ "nonn" ]
A266478
[ 1, 0, 2, 5, 31, 136, 1040 ]
[ "nonn", "hard", "more" ]
A136810
[ 0, 1, 2, 10, 11, 12, 20, 21, 32, 100, 101, 102, 110, 111, 120, 200, 201, 210, 320, 321, 332, 1000, 1001, 1002, 1010, 1011, 1012, 1020, 1021, 1100, 1101, 1102, 1110, 1111, 1200, 1201, 2000, 2001, 2010, 2011, 2100, 2101, 3200, 3210,...
[ "base", "nonn" ]
A376129
[ 1, 1, 1, 1, 4, 2, 2, 3, 2, 2, 3, 2, 1, 21, 16, 16, 17, 14, 16, 14, 15, 14, 135, 127, 120, 119, 114, 117, 107, 110, 112, 1033, 983, 958, 930, 924, 878, 902, 876, 879, 8392, 8013, 7863, 7678, 7560, 7445, 7408, 7323, 7224, ...
[ "nonn", "base" ]
A091152
[ 1, 3, 9, 29, 103, 405, 1757, 8355, 43229, 241677, 1451103, 9309961, 63550785, 459867819, 3516536269, 28337741649, 240056534347, 2133028001257, 19839848253937, 192812840531511, 1954556549898449, 20634173429269630 ]
[ "nonn" ]
A090602
[ 0, 1, 4, 243, 1048576, 762939453125, 170581728179578200000, 1.8562115921017575e+31, 1.42724769270596e+45, 1.0611166119964724e+62 ]
[ "nonn" ]
A312564
[ 1, 4, 8, 14, 18, 25, 27, 33, 36, 42, 46, 52, 56, 62, 68, 69, 76, 77, 84, 87, 95, 98, 105, 112, 110, 120, 118, 127, 127, 138, 139, 149, 155, 152, 163, 160, 170, 168, 180, 180, 192, 199, 193, 207, 201, 214, 209, 223, 220, ...
[ "nonn" ]
A075361
[ 0, 11, 0, 211, 131, 0, 313, 503, 0, 433, 353, 0, 643, 653, 0, 1069, 881, 0, 1693, 2459, 0, 3469, 4289, 0, 6379, 6983, 0, 9883, 9857, 0, 19759, 32999, 0, 49597, 58679, 0, 79867, 89669, 0, 167899, 268979, 0, 467899, 498689, 0, 6...
[ "nonn", "base", "less" ]
A189753
[ 2, 4, 6, 9, 12, 14, 17, 19, 22, 25, 27, 29, 33, 35, 37, 40, 43, 45, 48, 50, 53, 56, 58, 60, 64, 66, 68, 71, 74, 76, 78, 81, 84, 86, 89, 91, 94, 97, 99, 101, 105, 107, 109, 112, 115, 117, 120, 122, 125, 128, 130, 13...
[ "nonn" ]
A127381
[ 0, 1, 2, 3, 4, 5, 6, 8, 7, 9, 10, 11, 13, 12, 14, 15, 19, 22, 18, 16, 21, 17, 20, 23, 24, 25, 27, 26, 28, 29, 33, 36, 32, 30, 35, 31, 34, 37, 38, 39, 41, 40, 51, 52, 60, 64, 46, 47, 59, 50, 49, 42, 43, 56, 63...
[ "nonn", "look" ]
A162186
[ 1, 46, 1080, 17250, 210794, 2101418, 17796503, 131648504, 868101374, 5182032940, 28344317261, 143450494506, 677150551521, 3001361428036, 12561988338047, 49889607533966, 188796675237026, 683282982630926, 2372613717733406 ]
[ "nonn" ]
A166832
[ 0, 49, 574, 3170, 12373, 39110, 106825, 261632, 588256, 1233991, 2443430, 4607306 ]
[ "nonn" ]
A278773
[ 0, 20, 266, 1972, 10784, 48501, 189595, 665212, 2138149, 6384894, 17895624, 47447755, 119746565, 289136007, 670787381, 1500673676, 3247602855, 6817025467, 13912884597, 27665820296, 53701416899, 101922145950, 189427147850 ]
[ "nonn" ]
A286489
[ 2, 3, 5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 20, 21, 23, 26, 27, 28, 29, 30, 33, 34, 36, 37, 38, 39, 41, 44, 45, 46, 47, 48, 50, 51, 52, 53, 56, 57, 59, 60, 61, 62, 64, 67, 68, 69, 70, 71, 74, 75, 77, 80, 81, 82,...
[ "nonn", "easy" ]
A251025
[ 18330, 60044, 118871, 257578, 516684, 1078862, 2203974, 4638560, 9823382, 21323795, 46876790, 104722539, 236069897, 536548809, 1225050935, 2806918650, 6443646515, 14812139786, 34073066816, 78416975906, 180515457726 ]
[ "nonn" ]
A034907
[ 11, 12, 14, 18, 26, 58, 298, 180298, 1.9053458386279623e+26 ]
[ "base", "easy", "nonn", "nice" ]
A206047
[ 48, 255, 1338, 7041, 37020, 194691, 1023822, 5384085, 28313712, 148895799, 783011010, 4117687209, 21654034308, 113873925675, 598838568438, 3149163684861, 16560776867160, 87089576125791, 457985415203562 ]
[ "nonn" ]
A083000
[ 3, 18, 338, 2883, 24642, 486098, 4155987, 35532450, 700951682, 5992929075, 51237766962 ]
[ "nonn" ]
A021881
[ 0, 0, 1, 1, 4, 0, 2, 5, 0, 8, 5, 5, 1, 8, 8, 1, 4, 1, 3, 9, 1, 1, 0, 6, 0, 4, 3, 3, 2, 9, 5, 3, 2, 4, 9, 7, 1, 4, 9, 3, 7, 2, 8, 6, 2, 0, 2, 9, 6, 4, 6, 5, 2, 2, 2, 3, 4, 8, 9, 1, 6, 7, 6, 1...
[ "nonn", "cons" ]
A314112
[ 1, 5, 11, 16, 21, 26, 31, 37, 42, 47, 53, 58, 63, 68, 73, 79, 84, 89, 95, 100, 105, 110, 115, 121, 126, 131, 137, 142, 147, 152, 157, 163, 168, 173, 179, 184, 189, 194, 199, 205, 210, 215, 221, 226, 231, 236, 241, 247, 2...
[ "nonn" ]
A338849
[ 1, 1, 1, 1, 2, 0, 1, 3, 0, 0, 1, 4, 4, 0, 0, 1, 5, 10, 0, 0, 10, 1, 6, 18, 12, 24, 60, 36, 1, 7, 28, 42, 112, 280, 420, 322, 1, 8, 40, 96, 336, 1040, 2400, 3696, 2832, 1, 9, 54, 180, 792, 3060, 9540, 22428, 352...
[ "nonn", "tabl" ]
A133961
[ 379, 773, 1129, 2347, 2383, 2389, 3137, 3251, 3331, 3359, 3373, 3389, 3593, 3719, 3761, 3767, 3797, 4397, 4759, 7331, 7457, 7523, 7541, 7547, 7823, 7853, 11251, 13367, 13883, 17137, 17317, 19157, 19181, 22367, 22397, 23131, 23167, 23173 ]
[ "nonn", "base" ]
A257666
[ 1, 1, 1, 1, 7, 11, 17, 25, 51, 94, 165, 280, 496, 887, 1576, 2770, 4880, 8630, 15276, 26990, 47656, 84183, 148781, 262921, 464528, 820699, 1450091, 2562250, 4527272, 7999104, 14133456, 24972396, 44123768, 77962003, 137750326, 243390090, 4300447...
[ "nonn", "easy" ]
A157599
[ 1, 9, 402, 44230, 4512465, 423267831, 37803628716, 3527887213476, 318332583745245, 25647872392849576, 1892012326768856800, 131465592083214090000, 8.752726227773493e+21, 5.6352142377580296e+23 ]
[ "nonn" ]
A019237
[ 0, 1, 4, 1, 12, 32, 52, 100, 242, 622, 1318, 3188, 8382, 19662, 49006, 130188, 331642, 850856, 2239524, 5850712, 15287652, 40300278, 106291956, 280451616, 742278248, 1968624658, 5228549484, 13912280278, 37089229168 ]
[ "nonn", "more" ]
A204895
[ 2, 3, 2, 3, 2, 5, 3, 3, 2, 3, 2, 5, 3, 3, 2, 3, 2, 5, 3, 3, 2, 7, 7, 5, 3, 3, 2, 3, 2, 7, 5, 5, 5, 3, 2, 5, 5, 3, 2, 3, 2, 5, 3, 3, 2, 7, 3, 5, 3, 3, 2, 7, 3, 5, 3, 3, 2, 3, 2, 7, 5, 5, 5, 3...
[ "nonn" ]
A374803
[ 1300, 4062500, 1479604544 ]
[ "nonn", "bref", "more" ]
A131613
[ 0, 1, 3, 4, 5, 7, 8, 11, 12, 16, 19, 20, 21, 29, 32, 56 ]
[ "base", "fini", "nonn" ]
A037540
[ 1, 9, 64, 449, 3145, 22016, 154113, 1078793, 7551552, 52860865, 370026057, 2590182400, 18131276801, 126918937609, 888432563264, 6219027942849, 43533195599945, 304732369199616, 2133126584397313 ]
[ "nonn", "base", "easy" ]
A111660
[ 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, ...
[ "nonn" ]
A334884
[ 6, 12, 60, 168, 360, 504, 660, 1092, 2448, 3420, 4080, 5616, 6072, 7800, 9828, 12180, 14880, 20160, 20160, 25308, 32736, 34440, 39732, 51888, 58800, 74412, 102660, 113460, 150348, 178920, 194472, 246480, 262080, 265680, 285852, 352440, 372000, ...
[ "nonn" ]
A375953
[ 1, 5, 40, 430, 5770, 92590, 1726940, 36682200, 873793620, 23061929940, 667868085360, 21052931727240, 717531427466280, 26289935772108120, 1030422613932910800, 43018144091244320000, 1.9057116827958711e+21, 8.928480544447803e+22 ]
[ "nonn" ]
A303337
[ 0, 0, 0, 1, 1, 1, 2, 0, 1, 1, 3, 0, 3, 1, 1, 0, 4, 0, 4, 0, 1, 1, 5, 0, 1, 1, 0, 0, 6, 0, 6, 0, 1, 1, 1, 0, 7, 1, 1, 0, 8, 0, 8, 0, 0, 1, 9, 0, 1, 0, 1, 0, 9, 0, 1, 0, 1, 1, 10, 0, 10, 1, 0, ...
[ "nonn", "easy" ]
A326233
[ 4, 6, 24, 29, 41, 44, 74, 149, 151, 216, 229, 234, 240, 251, 284, 415, 481, 561, 574, 704, 719, 735, 751, 756, 776, 819, 966, 1026, 1030, 1114, 1245, 1459, 1474, 1524, 1535, 1584, 1749, 1936, 2035, 2084, 2101, 2165, 2189, 2241, ...
[ "nonn" ]
A084415
[ 4, 12, 8, 24, 15, 12, 24, 60, 16, 84, 48, 20, 30, 144, 24, 180, 21, 28, 120, 264, 32, 60 ]
[ "dead" ]
A083399
[ 1, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 3, 2, 2, 3, 2, 3, 3, 3, 2, 3, 2, 3, 2, 3, 2, 4, 2, 2, 3, 3, 3, 3, 2, 3, 3, 3, 2, 4, 2, 3, 3, 3, 2, 3, 2, 3, 3, 3, 2, 3, 3, 3, 3, 3, 2, 4, 2, 3, 3, 2...
[ "nonn", "easy" ]
A208442
[ 48, 3118, 209542, 14204032, 964650992, 65501464340, 4448918847452, 302141687342136, 20520762517588652, 1393678478912630300, 94654011092013270000, 6.428528989714452e+21, 4.366024978870159e+23 ]
[ "nonn" ]
A105189
[ 14, 17, 24, 51, 54, 62, 89, 114, 116, 147, 159, 167, 170, 173, 180, 201, 233, 240, 249, 252, 254, 270, 285, 296, 317, 332, 350, 353, 362, 369, 371, 390, 399, 410, 423, 431, 446, 468, 479, 485, 497, 536, 543, 551, 564, 570, 5...
[ "base", "nonn" ]
A176124
[ 1, 1, -1, 1, -2, -9, 1, -2, -33, -56, 1, 1, -109, -209, 50, 1, 11, -324, -894, 1641, 10485, 1, 36, -867, -4262, 12951, 85926, 211435, 1, 92, -2085, -20516, 74369, 625164, 1435939, 1005536, 1, 211, -4419, -93989, 344617, 4306671, 933...
[ "sign", "tabl" ]
A291451
[ 1, 0, 1, 0, 1, 10, 0, 1, 84, 280, 0, 1, 682, 9240, 15400, 0, 1, 5460, 260260, 1401400, 1401400, 0, 1, 43690, 7128576, 99379280, 285885600, 190590400, 0, 1, 349524, 193360720, 6600492080, 42549306800, 76045569600, 36212176000 ]
[ "nonn", "tabl" ]
A221130
[ 3, 10, 35, 132, 517, 2054, 8199, 32776, 131081, 524298, 2097163, 8388620, 33554445, 134217742, 536870927, 2147483664, 8589934609, 34359738386, 137438953491, 549755813908, 2199023255573, 8796093022230, 35184372088855, 140737488355352, 562949953421337 ]
[ "nonn" ]
A083524
[ 1, 2, 6, 10, 50, 56, 392, 400, 409, 419, 4609, 4621, 60073, 60087, 60102, 60118, 1022006, 1022024, 19418456, 19418476, 19418497, 19418519, 446625937, 446625961, 446625986, 446626012, 446626039, 446626067, 12952155943 ]
[ "easy", "nonn" ]
A238033
[ 122, 1004, 6218, 57540, 305978, 3010316, 14910890, 152094052, 724320722, 7559479508, 35151249002, 372487228468, 1705834157786, 18265051952972, 82815310705706, 893143327522980, 4023089695733666, 43605467765614960 ]
[ "nonn" ]
A234088
[ 171136, 2819612, 44020608, 823143024, 15831135568, 344607516548, 7674912649456, 184962385333344, 4468521679904932, 113118548558677220, 2839571041733999000, 73371990232652300000, 1.8750297408510986e+21 ]
[ "nonn" ]
A095903
[ 1, 2, 3, 4, 5, 7, 6, 8, 9, 12, 10, 13, 15, 20, 11, 14, 16, 21, 17, 22, 25, 33, 18, 23, 26, 34, 28, 36, 41, 54, 19, 24, 27, 35, 29, 37, 42, 55, 30, 38, 43, 56, 46, 59, 67, 88, 31, 39, 44, 57, 47, 60, 68, 89, 4...
[ "easy", "nonn" ]
A167973
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 13, 2, 14, 3, 15, 4, 16, 5, 17, 6, 18, 7, 19, 8, 20, 9, 21, 10, 22, 11, 23, 12, 1, 24, 13, 2, 25, 14, 3, 26, 15, 4, 27, 16, 5, 28, 17, 6, 29, 18, 7, 30, 19, 8, ...
[ "nonn" ]
A009631
[ 1, 4, 76, 3256, 235408, 25823744, 4007103296, 836059707008, 225808591264000, 76659294873275400, 31954924327960715000, 1.604615138510699e+22, 9.55392974049147e+24, 6.655283798759275e+27 ]
[ "nonn" ]
A317882
[ 1, 1, 2, 5, 12, 31, 79, 211, 564, 1543, 4259, 11899, 33526, 95272, 272544, 784598, 2270888, 6604900, 19293793, 56581857, 166523462, 491674696, 1455996925, 4323328548, 12869353254, 38396655023, 114803257039, 343932660450, 1032266513328, 3103532577722 ]
[ "nonn" ]
A090800
[ 30, 42, 56, 66, 22, 20, 128, 60, 108, 82, 162, 98, 82, 18, 154, 86, 290, 278, 184, 298, 98, 172, 198, 380, 124, 238, 364, 194, 128, 92, 192, 290, 334, 336, 398, 84, 268, 484, 220, 50, 88, 90, 20, 590, 520, 18, 172, 336, ...
[ "nonn" ]
A359509
[ 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 16, 1, 2, 1, 16, 1, 2, 1, 16, 1, 2, 1, 2048, 1, 2, 1, 16, 1, 2, 1, 2048, 1, 2, 1, 16, 1, 2, 1, 2048, 1, 2, 1, 16, 1, 2, 1, 67108864, 1, 2, 1, 16, 1, 2, 1, 2048, 1, 2, ...
[ "nonn" ]
A242281
[ 419, 761, 911, 1601, 2351, 6269, 6551, 9029, 22259, 28559, 28949, 37139, 52571, 56531, 67559, 70379, 78509, 108359, 114641, 133571, 135119, 138179, 146669, 153449, 176021, 187409, 193841, 200639, 252761, 288731, 303581, 312551, 333479, 337349, 4076...
[ "nonn" ]
A303084
[ 1, 1, 2, 1, 2, 4, 1, 12, 2, 8, 1, 20, 32, 3, 16, 1, 72, 29, 112, 6, 32, 1, 168, 258, 90, 416, 10, 64, 1, 496, 432, 1455, 304, 1512, 21, 128, 1, 1296, 2525, 3667, 11767, 1054, 5472, 42, 256, 1, 3616, 6313, 33152, 34430,...
[ "nonn", "tabl" ]
A047190
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 7, 35, 40, 120, 135, 315, 350, 745, 825, 1881, 2106, 5490, 6240, 17160, 19635, 52339, 59855, 151775, 173160, 427336, 487305, 1207765, 1380405, 3490050 ]
[ "nonn" ]
A271241
[ 0, 0, 64, 19200, 9523200, 10151116800, 24976569139200, 147041646595276800, 2.1111818553720308e+21, 7.479797406966674e+25, 6.589977222119386e+30 ]
[ "nonn" ]
A028240
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32512, 510, 32512, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 ]
[ "nonn", "fini", "full" ]
A250933
[ 16808096, 19118642332, 22261912983384, 26155302062776044, 30803789209655857000, 3.6301925437286277e+22, 4.278947336510113e+25, 5.043945582599236e+28, 5.945820945098969e+31 ]
[ "nonn" ]
A134234
[ 1, 4, 1, 6, 8, 1, 8, 10, 12, 1, 10, 12, 14, 16, 1, 12, 14, 16, 18, 20, 1, 14, 16, 18, 20, 22, 24, 1, 16, 18, 20, 22, 24, 26, 28, 1, 18, 20, 22, 24, 26, 28, 30, 32, 1, 20, 22, 24, 26, 28, 30, 32, 34, 36, 1 ]
[ "nonn", "tabl" ]
A095463
[ 32, 35, 38, 43, 50, 55, 120, 203, 1022, 100011, 1.111111111111111e+34 ]
[ "nonn", "fini", "full" ]
A028817
[ 1, 4, 9, 121, 484, 676, 10201, 12321, 14641, 40804, 44944, 69696, 94249, 1002001, 1234321, 4008004, 5221225, 6948496, 100020001, 102030201, 104060401, 121242121, 123454321, 125686521, 400080004, 404090404, 522808225, 617323716, 942060249, 10000200001 ]
[ "nonn", "base" ]
A223484
[ 3200000, 177147, 6834375, 263671875, 12755926575, 622332801675, 31621425535575, 1608341612382675, 82456836767805380, 4227484231555443700, 217015136003889270000, 1.1140133589863413e+22, 5.719494836213029e+23 ]
[ "nonn" ]
A255517
[ 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 2, 1, 0, 0, 1, 3, 5, 2, 0, 0, 1, 4, 12, 18, 3, 0, 0, 1, 5, 22, 64, 66, 6, 0, 0, 1, 6, 35, 156, 363, 266, 12, 0, 0, 1, 7, 51, 310, 1193, 2214, 1111, 25, 0, 0, 1, 8, ...
[ "nonn", "tabl" ]
A263975
[ 16, 1441, 86633, 2604481, 102742049, 4952396901, 224559467921, 9479627840080, 407499168253313, 17951972257163800, 787313274461726500, 34237567537967022000, 1.4904726412417848e+21, 6.5073777514668815e+22 ]
[ "nonn" ]
A345185
[ 5860, 6112, 6138, 6462, 6497, 6588, 6651, 6859, 6947, 7001, 7038, 7057, 7064, 7099, 7190, 7316, 7328, 7372, 7433, 7561, 7587, 7703, 7759, 7841, 7902, 8056, 8163, 8289, 8352, 8371, 8443, 8506, 8560, 8569, 8630, 8632, 8758, 8928, 8991, 9017...
[ "nonn" ]
A235921
[ 210, 630, 1050, 1470, 1890, 2310, 2730, 3150, 3570, 3990, 4410, 4830, 5250, 5670, 6090, 6510, 6930, 7350, 7770, 8190, 8610, 9030, 9450, 9870, 10290, 10710, 11130, 11550, 11970, 12390, 12810, 13230, 13650, 14070, 14490, 14910, 15330, 15750, ...
[ "nonn" ]
A216893
[ 1, 2, 8, 21, 55, 377, 610, 17711, 121393, 832040, 5702887, 19740274219868220000 ]
[ "nonn", "hard" ]
A366712
[ 1, 1, 2, 3, 2, 2, 3, 3, 3, 5, 3, 2, 4, 4, 4, 7, 2, 3, 5, 4, 6, 8, 6, 4, 6, 6, 5, 10, 3, 3, 5, 3, 2, 9, 4, 5, 7, 4, 5, 10, 4, 5, 6, 5, 4, 12, 3, 5, 5, 5, 8, 9, 5, 5, 10, 7, 9, 10, 7, 6, 10, 5, ...
[ "nonn" ]
A187750
[ 1, 2, 3, 6, 8, 10, 11, 18, 20, 32, 50, 110, 153, 507, 727, 900, 982, 1489, 1737, 1974, 3085 ]
[ "nonn" ]
A132676
[ 10, 173, 190, 250, 2746, 2766, 2781, 2986, 2989, 3053, 3054, 3243, 3245, 3310, 3499, 3501, 3566, 3771, 4013, 4077, 4078, 44013, 44269, 47789, 47806, 47838, 47871, 48813, 48879, 51934, 51966, 52958, 56014, 56063, 57005, 57007, 57069, 64206 ]
[ "base", "fini", "full", "nonn", "word" ]
A264807
[ 1, 6, 5, 0, 1, 7, 9, 7, 5, 0, 7, 6, 8, 8, 4, 8, 3, 5, 9, 7, 4, 4, 6, 8, 3, 1, 1, 9, 9, 2, 0, 4, 7, 6, 3, 7, 2, 6, 1, 8, 6, 8, 9, 1, 2, 5, 3, 4, 2, 1, 4, 8, 2, 4, 3, 2, 0, 8, 0, 8, 0, 6, 8, 1...
[ "nonn", "cons" ]
A315914
[ 1, 6, 8, 14, 20, 27, 28, 40, 40, 51, 48, 62, 56, 78, 64, 86, 78, 99, 80, 112, 96, 123, 100, 134, 112, 150, 116, 158, 134, 171, 132, 184, 152, 195, 152, 206, 168, 222, 168, 230, 190, 243, 184, 256, 208, 267, 204, 278, 224...
[ "nonn" ]
A122233
[ 101010, 11010100, 1111100000, 111100100100, 11110001011000, 1111110010000100, 111101100010011000, 11110001101100100000, 1.11110101100011e+21, 1.111011001100011e+23 ]
[ "nonn", "base" ]
A199030
[ 9, 109, 1209, 13309, 146409, 1610509, 17715609, 194871709, 2143588809, 23579476909, 259374246009, 2853116706109, 31384283767209, 345227121439309, 3797498335832409, 41772481694156510, 459497298635721600, 5054470284992938000 ]
[ "nonn", "easy" ]
A143472
[ 1, 0, 0, 1, 0, 1, 1, 1, 2, 1, 2, 3, 3, 4, 5, 6, 7, 9, 11, 14, 17, 20, 26, 31, 38, 48, 58, 72, 88, 108, 134, 164, 202, 249, 306, 376, 463, 570, 701, 863, 1061, 1306, 1607, 1976, 2433, 2993, 3682, 4531, 5574, 6859, 843...
[ "nonn", "easy" ]
A378492
[ 0, 1, 4, 9, 144, 441, 1444, 29929, 55225, 166464, 255025, 299209, 633616, 646416, 767376, 4999696, 9696996, 34433424, 228281881, 414041104, 414488881, 424442404, 536663556, 969699600, 1649496996, 1929229929, 2636206336, 2666999449, 2929299129, 2996029696, ...
[ "nonn", "base" ]
A300922
[ 1, 304, 5160, 224767, 8265835, 340365586, 13715723327, 560932609225, 22881004568048, 935477482098150, 38230695664365360, 1562893013715392500, 63887739349054145000, 2.6117145839941976e+21, 1.0676515499409844e+23 ]
[ "nonn" ]
A009101
[ 0, 102, 102, 102, 102, 10, 102, 102, 102, 102, 10, 102, 102, 102, 102, 20, 102, 102, 102, 60, 20, 110, 102, 110, 102, 50, 102, 140, 60, 110, 30, 70, 102, 50, 70, 50, 102, 170, 102, 102, 40, 140, 50, 80, 60, 140, 70, 110, ...
[ "nonn", "base" ]
A173562
[ 0, 1, 4, 9, 17, 26, 37, 50, 66, 83, 102, 123, 147, 172, 199, 228, 260, 293, 328, 365, 405, 446, 489, 534, 582, 631, 682, 735, 791, 848, 907, 968, 1032, 1097, 1164, 1233, 1305, 1378, 1453, 1530, 1610, 1691, 1774, 1859, 1947, 20...
[ "nonn", "easy" ]
A388126
[ 4, 0, 1, 7, 5, 3, 4, 3, 6, 5, 9, 3, 4, 0, 3, 9, 0, 4, 1, 2, 1, 3, 0, 7, 4, 1, 7, 7, 5, 6, 5, 7, 9, 8, 3, 4, 6, 2, 0, 4, 3, 9, 8, 4, 3, 1, 1, 2, 8, 8, 6, 2, 3, 0, 0, 0, 8, 1, 3, 1, 3, 0, 5, 6...
[ "nonn", "cons" ]
A240782
[ 1, 22, 472, 9581, 226532, 5228820, 121621207, 2827515311, 65742420202, 1528546759636, 35539596883248, 826313572773202, 19212201839186636, 446693206688680100, 10385838163314549000, 241475873187832400000 ]
[ "nonn" ]
A124904
[ 0, 2, 1, 2, 4, 3, 5, 7, 2, 4, 6, 8, 3, 10, 5, 12, 7, 14, 9, 4, 11, 6, 18, 13, 8, 32, 3, 10, 22, 5, 29, 12, 36, 7, 31, 14, 38, 9, 33, 4, 16, 40, 11, 35, 6, 18, 42, 13, 25, 49, 8, 32, 44, 15, 27, 39, 10, ...
[ "nonn" ]
A231881
[ 1, 6, 3, 16, 9, 4, 14, 8, 29, 5, 2, 11, 25, 12, 15, 21, 37, 69, 13, 27, 19, 26, 10, 24, 30, 42, 39, 52, 20, 34, 18, 28, 81, 43, 36, 31, 48, 7, 56, 47, 61, 33, 46, 17, 23, 40, 32, 49, 60, 57, 22, 45, 63, 54, 6...
[ "nonn", "base" ]
A316936
[ 3, 5, 7, 11, 15, 21, 29, 39, 49, 61, 75, 91, 109, 129, 151, 175, 199, 225, 253, 283, 315, 349, 385, 423, 463, 505, 549, 595, 643, 693, 745, 799, 853, 909, 967, 1027, 1089, 1153, 1219, 1287, 1357, 1429, 1503, 1579, 1657, 1737, ...
[ "nonn" ]
A029152
[ 1, 0, 1, 1, 1, 1, 3, 1, 3, 4, 3, 4, 7, 4, 7, 9, 7, 9, 14, 9, 14, 17, 14, 17, 24, 17, 24, 29, 24, 29, 38, 29, 38, 45, 38, 45, 57, 45, 57, 66, 57, 66, 81, 66, 81, 93, 81, 93, 111, 93, 111, 126, 111, 126, 148, ...
[ "nonn", "easy" ]
A147805
[ 2, 1, 81, 16, 8748, 91, 1489347 ]
[ "nonn", "more" ]
A307721
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, ...
[ "sign" ]