N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A027759	[ 1, 5, 1, 31, 1, 41, 1, 31, 1, 61, 1, 3421, 1, 5, 1, 557, 1, 821, 1, 371, 1, 121, 1, 3421, 1, 5, 1, 929, 1, 15745, 1, 557, 1, 5, 1, 2557843, 1, 5, 1, 15541, 1, 1805, 1, 743, 1, 241, 1, 60887, 1, 61, 1, 1673, 1, ...	[ "nonn", "frac" ]
A176999	[ 1, 1111010, 11, 11110, 11110101, 1111011101101010, 111, 1111011101101010000, 111101, 11110111011010, 111101011, 111101110, 11110111011010100, 11110111110101010, 1111, 111101110110, 11110111011010101000, 11110111011010111000, 1111011, 1111110, 111101110110101 ]	[ "nonn", "base" ]
A291775	[ 3, 18, 130, 1026 ]	[ "nonn", "more" ]
A230097	[ 0, 1, 3, 5, 11, 21, 39, 45, 75, 155, 181, 627, 923, 1241, 2505, 3915, 5221, 6475, 11309, 15595, 19637, 31595, 44491, 69451, 113447, 185269, 244661, 357081, 453677, 908091, 980853, 2960011, 2965685, 5931189, 11862197, 20437147, 22193965, 43586...	[ "nonn", "base" ]
A216384	[ 6, 38, 42, 62, 146, 1145, 4214, 15590, 47058, 121935, 464834, 4049465, 4759314, 7756755, 15838490, 18284105, 127137997, 132734042, 141393578, 353493351, 435485242, 470458377, 1056410914 ]	[ "nonn", "more" ]
A307392	[ 1, 1, 1, 1, 2, 3, 3, 3, 3, 4, 6, 9, 11, 12, 12, 12, 13, 15, 18, 22, 27, 34, 42, 50, 56, 60, 63, 66, 70, 76, 84, 94, 106, 120, 136, 154, 177, 206, 241, 279, 317, 352, 381, 404, 423, 442, 464, 492, 528, 574, 630, 694...	[ "nonn" ]
A350003	[ 37, 87, 31, 87, 87, 87, 72979, 17781, 1263, 31 ]	[ "nonn", "tabl", "more" ]
A159170	[ 1, 37, 895, 18261, 344382, 6268019, 112703308, 2029828260, 36942033435, 683494734409 ]	[ "nonn" ]
A288073	[ 1385670, 126264820, 5593305476, 164767964504, 3682811916980, 67173739068760, 1046677747672360, 14373136466094880, 177882700353757470, 2017523504473480000, 21241931655650630000, 209732362862241100000, 1.9578302167393373e+21, 1.7394726697224718e+22, 1.479081950648697e+23 ]	[ "nonn" ]
A217011	[ 1, 5, 19, 6, 8, 9, 10, 2, 3, 4, 18, 41, 73, 42, 20, 7, 24, 25, 26, 27, 28, 11, 12, 13, 14, 15, 17, 40, 72, 113, 163, 114, 74, 43, 21, 23, 49, 50, 51, 52, 53, 54, 55, 29, 30, 31, 32, 33, 34, 35, 16, 39, 71, 112,...	[ "nonn", "easy" ]
A321612	[ 2, 4, 6, 7, 9, 13, 16, 21, 31 ]	[ "nonn", "more" ]
A237644	[ 1, 1, 4, 63, 2116, 113550, 8687239, 891701755, 118110608484, 19625931563166, 4001492423904134, 983010151440620900, 286534726440573760000, 9.781052984098813e+22, 3.8660405402434292e+25, 1.7520204438205013e+28 ]	[ "nonn" ]
A338035	[ 1, 2, 1, 1, 5, 1, 0, 12, 8, 1, 0, 19, 33, 11, 1, 0, 21, 96, 63, 14, 1, 0, 15, 217, 256, 102, 17, 1, 0, 6, 386, 830, 524, 150, 20, 1, 0, 1, 533, 2241, 2147, 927, 207, 23, 1, 0, 0, 560, 5079, 7440, 4541, 1492, 273,...	[ "nonn", "tabl" ]
A134219	[ 37, 168, 198, 246, 390, 417, 432, 495, 541, 704, 717, 843, 945, 975, 985, 997, 1047, 1166, 1227, 1237, 1345, 1384, 1427, 1535, 1618, 1641, 1733, 1881, 1915, 1944, 2054, 2128, 2821, 2856, 2872, 2897, 2902, 2905, 2918, 2944, 2960, 2997,...	[ "nonn", "base" ]
A233872	[ 34416, 155104, 907940, 6887232, 57147272, 530983144, 5012939992, 50952500976, 512188465988, 5479606300380, 57126934560812, 630600586218188, 6718939422891932, 75570674572025340, 815496420906106900 ]	[ "nonn" ]
A176187	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 1, 3, 1, 3, 1, 1, 3, 1, 1, 3, 1, 3, 1, 3, 1, 1, 3, 1, 1, 1, 3, 1, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 1...	[ "nonn" ]
A048363	[ 7, 87, 312, 1287, 10572, 81103, 397212, 881912, 5270652, 7601169, 134021535, 421518419, 1402775027, 4204494972, 42305694389, 397212509427, 1943649189427, 6130065071251, 76024844477168, 98844816642745, 1333325833012312, 6069248534849827, 13303299356842428, 19119983728334...	[ "nonn", "base" ]
A139501	[ 23, 47, 73, 101, 131, 139, 163, 197, 233, 239, 271, 277, 311, 347, 349, 353, 397, 443, 461, 463, 491, 499, 541, 577, 587, 593, 647, 653, 691, 719, 739, 761, 809, 821, 823, 853, 859, 883, 929, 947, 967, 997, 1013, 1051, 1061, 1...	[ "nonn" ]
A365007	[ 1, 2, 7, 6, 16, 17, 29, 22, 52, 42, 67, 57, 92, 79, 142, 86, 154, 143, 191, 146, 266, 189, 277, 217, 341, 262, 430, 279, 436, 402, 497, 342, 634, 444, 674, 507, 704, 553, 878, 562, 862, 766, 947, 677, 1222, 807, 1129, 857,...	[ "nonn", "look" ]
A193485	[ 0, 4, 46, 2731, 700180, 861416011, 4011951942490 ]	[ "nonn" ]
A281853	[ 0, 0, 1, 0, 1, 2, 1, 4, 3, 6, 10, 8, 19, 22, 26, 48, 53, 78, 112, 136, 205, 264, 354, 504, 639, 890, 1204, 1568, 2173, 2868, 3826, 5192, 6839, 9214, 12295, 16296, 21894, 28996, 38624, 51552, 68230, 90930, 120715, 159988, 212728,...	[ "nonn" ]
A213571	[ 1, 5, 3, 16, 13, 7, 42, 38, 29, 15, 99, 94, 82, 61, 31, 219, 213, 198, 170, 125, 63, 466, 459, 441, 406, 346, 253, 127, 968, 960, 939, 897, 822, 698, 509, 255, 1981, 1972, 1948, 1899, 1809, 1654, 1402, 1021, 511, 4017, 4007,...	[ "nonn", "tabl", "easy" ]
A178370	[ 7, 25, 26, 44, 133, 187, 125, 161, 403, 493, 296, 350, 817, 943, 539, 611, 1375, 1537, 854, 944, 2077, 2275, 1241, 1349, 2923, 3157, 1700, 1826, 3913, 4183, 2231, 2375, 5047, 5353, 2834, 2996, 6325, 6667, 3509, 3689, 7747, 8125, 425...	[ "nonn", "easy" ]
A105797	[ 0, 1, 3, 19, 135, 1291, 14343, 188539, 2815095, 47412811, 886239783, 18231365659, 409053408855, 9943622273131, 260300948527623, 7300927107288379, 218426614502831420, 6943261704033435000, 233692323131307300000 ]	[ "nonn", "easy" ]
A292986	[ 70, 4030, 5390, 5830, 7192, 7400, 7912, 9272, 10430, 10570, 10792, 10990, 11410, 11690, 11830, 12110, 12530, 12670, 13370, 13510, 13790, 13930, 14770, 15610, 15890, 16030, 16310, 16730, 16870, 17272, 17570, 17990, 18410, 18830, 18970, 19390, 19...	[ "nonn" ]
A213004	[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 39, 14, 8935434522, 426879, 27 ]	[ "nonn", "base" ]
A054222	[ 4, 6, 2, 17, 25, 22, 62, 123, 23, 214, 341, 510, 246, 727, 932, 998, 573, 1329, 1726, 2195, 2742, 3373, 3515, 2516, 4094, 4155, 4911, 5006, 5830, 1746, 6857, 5352, 4057, 7998, 8273, 9259, 10646, 1331, 12165, 12239, 884, 13822, 15623...	[ "nice", "nonn" ]
A072124	[ 1, 14, 19, 25, 32, 40, 33, 60, 63, 47, 68, 64, 74, 87, 79, 73, 97, 110, 107, 132, 134, 129, 116, 136, 123, 113, 145, 143, 160, 180, 153, 171, 185, 176, 224, 209, 196, 207, 229, 221, 211, 167, 236, 252, 260, 201, 235, 274, ...	[ "base", "nonn" ]
A078491	[ 1, 1, 2, 60, 360360, 219060189739591200, 1.749342047920661e+57 ]	[ "nonn" ]
A107377	[ 0, 1, 1, 2, 5, 19, 84, 393, 1865, 8886, 42381, 202187, 964640, 4602409, 21958729, 104768258, 499864605, 2384926971, 11378834836, 54290082897, 259025915025, 1235850473974, 5896423120549, 28132695944723, 134225201438720 ]	[ "nonn", "easy" ]
A113552	[ 1, 2, 6, 3, 12, 4, 20, 5, 10, 30, 15, 60, 420, 7, 14, 42, 21, 84, 28, 140, 35, 70, 210, 105, 630, 9, 18, 90, 45, 180, 36, 252, 63, 126, 1260, 315, 1890, 27, 54, 270, 135, 540, 108, 756, 189, 378, 3780, 945, 5670, 81, ...	[ "easy", "nonn" ]
A054795	[ 23, 25, 29, 31, 35, 41, 43, 53, 55, 65, 73, 79, 95, 113, 121, 133, 151, 155, 179, 185, 205, 223, 233, 263, 265, 295, 311, 329, 361, 365, 403, 415, 443, 473, 485, 529, 535, 575, 601, 623, 671, 673, 725, 745, 779, 823, 835, ...	[ "nonn" ]
A129381	[ 1, 1, 2, 2, 2, 2, 2, 2, 8, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 48, 49, 49, 49, 49, 49, 49, 49, 49, ...	[ "nonn" ]
A072167	[ 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916799, 479001478, 6227012074, 87177809092, 1307651456625, 20921799763626, 355647213494682, 6400805686152436, 121585553747301440, 2430677026538811400 ]	[ "nonn" ]
A049694	[ 1, 6, 10, 15, 22, 31, 38, 49, 62, 73, 88, 105, 116, 137, 158, 173, 198, 223, 240, 269, 298, 319, 348, 383, 408, 441, 480, 507, 548, 593, 620, 667, 706, 739, 790, 833, 868, 921, 978, 1015, 1072, 1133, 1168, 1233, 1298, 1339, ...	[ "nonn" ]
A218881	[ 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 10771, 0 ]	[ "nonn" ]
A382543	[ 1, 2, 9, 58, 428, 3360, 27295, 226538, 1907889, 16239034, 139326959, 1202856930, 10436521180, 90920984306, 794767853334, 6967126281976, 61224158085137, 539141091531558, 4756357637006941, 42028309478725096, 371898032568193540, 3294977494088601600 ]	[ "nonn", "easy" ]
A275941	[ 1, 12, 127, 1222, 11096, 97140, 830152, 6977918, 57968938, 477479647, 3908025133, 31832823274, 258341395508, 2090604162540, 16880171617952, 136054564607870, 1095059149237006, 8803843758642693, 70715260139217140, 567591311612071200, 4553028235287085600 ]	[ "nonn", "easy" ]
A311916	[ 1, 4, 8, 13, 17, 22, 26, 30, 34, 39, 43, 46, 51, 55, 61, 65, 70, 72, 77, 81, 87, 88, 94, 97, 104, 109, 113, 115, 120, 123, 130, 131, 137, 139, 147, 152, 157, 157, 164, 165, 173, 173, 181, 181, 190, 195, 200, 200, 207, ...	[ "nonn" ]
A238004	[ 2, 2, 4, 4, 2, 4, 6, 4, 4, 6, 4, 4, 12, 2, 4, 4, 8, 6, 8, 4, 4, 8, 12, 4, 12, 4, 4, 8, 8, 4, 6, 18, 8, 4, 4, 8, 8, 4, 12, 12, 6, 24, 2, 4, 4, 8, 8, 4, 8, 12, 6, 12, 12, 24, 10, 4, 4, 8, 8, 4, 8, ...	[ "nonn", "easy" ]
A001490	[ 1, -12, 66, -220, 483, -660, 252, 1320, -4059, 6644, -6336, 240, 12255, -27192, 35850, -27972, -2343, 50568, -99286, 122496, -96162, 11584, 115116, -242616, 315216, -283800, 128304, 126280, -409398, 622644, -671550, 501468, -122508, -382360 ]	[ "sign" ]
A050193	[ 1, 1, 1, 2, 3, 4, 7, 11, 17, 28, 45, 71, 116, 187, 300, 487, 787, 1270, 2057, 3327, 5377, 8704, 14081, 22774, 36855, 59629, 96467, 156096, 252563, 408631, 661194, 1069825, 1730974, 2800799, 4531773, 7332501, 11864274, 19196775 ]	[ "nonn" ]
A019856	[ 7, 3, 1, 3, 5, 3, 7, 0, 1, 6, 1, 9, 1, 7, 0, 4, 8, 3, 2, 8, 7, 5, 4, 3, 6, 0, 8, 2, 7, 5, 6, 2, 2, 4, 0, 3, 3, 7, 8, 3, 9, 6, 5, 4, 4, 7, 6, 2, 5, 3, 7, 8, 4, 4, 2, 2, 1, 1, 6, 8, 7, 9, 4, 4...	[ "nonn", "cons" ]
A159327	[ 1, 10, -142, -6260, 40492, 6464600, 15650680, -9230092400, -118813175920, 16681327127200, 425588368425760, -36112927963566400, -1494045516385037000, 89931487642346460000, 5.599582070970791e+21, -2.4869205942256188e+23, -2.281340351184959e+25 ]	[ "sign", "frac" ]
A277975	[ 1, 6, 56, 431, 2931, 18556, 112306, 659181, 3784181, 21362306, 119018556, 656127931, 3585815431, 19454956056, 104904174806, 562667846681, 3004074096681, 15974044799806, 84638595581056, 447034835815431, 2354383468627931, 12367963790893556, 64820051193237304 ]	[ "nonn", "easy" ]
A090118	[ 3, 7, 23, 359, 139, 619, 113, 1933, 523, 887, 3229, 1669, 2477, 10399, 5749, 10799, 9973, 22193, 30593, 25261, 121081, 76163, 93001, 157579, 212507, 35677, 118973, 1121453, 190921, 672379, 693881, 1003963, 259033, 1646033, 675643, 1207769 ]	[ "nonn" ]
A295945	[ 1, -1, 2, -3, 0, 30, -240, 1470, -6720, 12600, 226800, -4296600, 48787200, -407206800, 1816214400, 19347728400, -691775884800, 12223324713600, -155222158291200, 1206712825718400, 6182374444646400, -501335892869011200, 12800637574960435000, -226664355546012400000, 2.64...	[ "sign" ]
A289894	[ 0, 6, 396, 201810, 1395190506 ]	[ "nonn", "more" ]
A297066	[ 2, 10, 205, 16059, 5651413, 7919440725, 42862620370029, 903073429362723000, 7.4176314123331505e+22, 2.37198677556019e+28, 2.9525329905069155e+34 ]	[ "nonn" ]
A028183	[ 1, 32, 653, 10876, 161673, 2240376, 29659621, 380803412, 4787944865, 59338124560, 728084033469, 8872019284908, 107592152638777, 1300465261202984, 15682817092702996, 188828216949912960 ]	[ "nonn" ]
A001531	[ 1, 1, 3, 7, 83, 109950, 28613442061634, 3.296696461111376e+31, 6.2322647787597335e+68 ]	[ "nonn", "nice" ]
A381904	[ 0, 0, 0, 0, 0, 144, 11616, 30976 ]	[ "nonn", "more" ]
A011247	[ 1, 2, 9, 6, 8, 3, 9, 5, 5, 4, 6, 5, 1, 0, 0, 9, 6, 6, 5, 9, 3, 3, 7, 5, 4, 1, 1, 7, 7, 9, 2, 4, 5, 1, 1, 5, 9, 8, 3, 5, 3, 4, 5, 1, 4, 9, 4, 2, 4, 9, 6, 5, 5, 1, 2, 8, 0, 7, 7, 9, 0, 5, 2, 2...	[ "nonn", "cons" ]
A328632	[ 0, 12, 24, 30, 42, 54, 60, 72, 84, 90, 102, 114, 120, 132, 144, 150, 162, 174, 180, 192, 204, 216, 228, 246, 258, 276, 288, 306, 318, 336, 348, 366, 378, 396, 408, 420, 432, 444, 450, 462, 474, 480, 492, 504, 510, 522, 534, ...	[ "nonn" ]
A089733	[ 1, 4, 13, 15, 19, 24, 59, 66, 131, 142, 157, 170, 191, 208, 233, 252, 307, 330, 379, 408, 499, 530, 557, 594, 709, 750, 827, 870, 991, 1038, 1123, 1176, 1301, 1360, 1399, 1460, 1493, 1560, 1693, 1764, 1907, 1980, 2099, 2178, 227...	[ "base", "nonn" ]
A059923	[ 1, 2, 3, 5, 8, 13, 20, 31, 48, 74, 114, 176, 271, 417, 642, 988, 1521, 2341, 3603, 5545, 8533, 13131, 20207, 31096, 47853, 73639, 113320, 174383, 268350, 412951, 635471, 977896, 1504837, 2315721, 3563551, 5483776, 8438716, 12985930, 1998341...	[ "easy", "nice", "nonn" ]
A228021	[ 2, 3, 29, 89, 251, 659, 937, 1307, 1453, 8179, 9391, 12097, 28499, 83969, 101209, 120739, 730993 ]	[ "nonn", "hard", "more" ]
A332561	[ 20, 20, 10, 105, 1512, 27720, 4620, 660, 144144, 16016, 5445440, 495040, 12697776, 976752, 69768, 823727520, 51482970, 3028410, 168245, 8855, 159845400, 5768642880, 262211040, 11400480, 475020, 543814622208, 20915947008, 774664704, 941432800 ]	[ "nonn", "look" ]
A193599	[ 0, 3, 5, 6, 8, 10, 11, 13, 16, 18, 21, 23, 24, 26, 28, 29, 31, 34, 36, 39, 41, 42, 44, 46, 47, 49, 52, 54, 55, 57, 59, 60, 62, 65, 67, 70, 72, 73, 75, 77, 78, 80, 83, 85, 88, 90, 91, 93, 95, 96, 98, 101, 103, 1...	[ "nonn" ]
A313005	[ 1, 4, 9, 14, 17, 22, 29, 33, 37, 41, 53, 53, 58, 59, 75, 71, 78, 77, 97, 89, 98, 95, 119, 107, 118, 113, 141, 125, 138, 131, 163, 143, 158, 149, 185, 161, 178, 167, 207, 179, 198, 185, 229, 197, 218, 203, 251, 215, 238, ...	[ "nonn" ]
A285470	[ 12, 22, 32, 42, 52, 62, 72, 82, 92, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 420, 421, 422, 423, 424, 425, 426, 427...	[ "nonn", "base", "easy" ]
A272796	[ 23, 223, 22273, 2222273, 22222222223, 2222222222273, 22222222222223556, 2222222222222222300, 2.2222222222222223e+22, 2.2222222222222224e+28, 2.222222222222222e+30, 2.2222222222222223e+36, 2.222222222222222e+40 ]	[ "nonn", "base" ]
A146487	[ 9, 9, 6, 5, 9, 8, 9, 2, 7, 4, 8, 0, 2, 4, 1, 2, 7, 3, 4, 1, 9, 1, 5, 9, 0, 4, 6, 3, 2, 9, 8, 9, 4, 6, 9, 2, 2, 9, 1, 0, 1, 0, 3, 9, 1, 0, 1, 1, 7, 8, 3, 8, 2, 0, 6, 5, 8 ]	[ "nonn", "cons", "less" ]
A190615	[ 1, -1, 2, -2, 1, -2, 0, -2, 0, 0, 2, 0, 3, -1, 2, -2, 2, -4, 0, 0, 0, 0, 2, 0, 3, 0, 2, -4, 0, -2, 0, -2, 0, 0, 0, 0, 2, -3, 4, -2, 1, -2, 0, -2, 0, 0, 2, 0, 2, -2, 2, -2, 4, -2, 0, 0, 0, 0, 0, 0, ...	[ "sign" ]
A099810	[ 1, 3, 7, 13, 25, 63, 103, 193, 489, 835, 1647, 4061, 6545, 12543, 31343, 53505, 105073, 258307, 424567, 790797, 2005641, 3420447, 6748855, 16634209, 26811769, 51377059, 128377535, 219165917, 430383937, 1058044767, 1739056639 ]	[ "nonn" ]
A223586	[ 2, 6, 32, 56, 1664, 2352, 1123232, 929038, 9405893184 ]	[ "nonn" ]
A104481	[ 1, 1, 1, 2, 1, 3, 2, 3, 2, 4, 3, 4, 4, 3, 5, 6, 4, 5, 5, 6, 6, 6, 5, 8, 7, 6, 7, 8, 7, 7, 9, 8, 9, 8, 9, 8, 8, 11, 10, 11, 10, 8, 11, 10, 12, 9, 12, 14, 9, 10, 14, 15, 11, 12, 10, 11, 16, 12, 15, 15...	[ "easy", "nonn" ]
A349966	[ 1, 0, 1, 16, 418, 17600, 1086979, 92223488, 10292241540, 1462309109760, 257739952352133, 55188518041440260, 14111052911099343000, 4.2466684673390663e+21, 1.485904567816768e+24, 5.981450099541389e+26 ]	[ "nonn" ]
A205669	[ 1, 5, 24, 62 ]	[ "nonn" ]
A301273	[ 2, 5, 10, 17, 28, 41, 58, 77, 100, 129, 160, 197, 238, 281, 328, 381, 440, 167, 568, 639, 712, 791, 38, 321, 212, 1161, 1264, 1371, 1480, 531, 1720, 1851, 1988, 2127, 2276, 809, 2584, 2747, 2914, 3087, 3266, 1149, 3638, 3831, 40...	[ "nonn", "frac" ]
A147328	[ 1, 1, 1, 1, 1, 1, 3, 9, 20, 47, 148, 487, 2258, 13693, 84456 ]	[ "nonn" ]
A249326	[ 7680, 541624, 30441964, 542821804, 6141387290, 47731565832, 287558999040, 1391469343606, 5699309648290, 20373369304928, 65131345488716, 189561387128430, 509206816277902, 1277977627718940, 3019132472920082 ]	[ "nonn" ]
A119289	[ 53, 89, 107, 113, 167, 179, 251, 317, 347, 389, 397, 419, 431, 443, 457, 461, 521, 599, 641, 643, 653, 709, 727, 761, 773, 797, 839, 863, 887, 907, 911, 977, 991, 1087, 1091, 1103, 1153, 1187, 1213, 1217, 1229, 1231, 1259, 1277, ...	[ "base", "nonn" ]
A271407	[ 0, 0, 0, 0, 0, 8, 0, 0, 14, 216, 0, 0, 15, 2592, 6048, 0, 0, 15, 7308, 896832, 203256, 0, 0, 15, 10368, 12228624, 685305792, 8627472, 0, 0, 15, 11160, 50382432, 64737526428, 1246974564672, 475098048, 0, 0, 15, 11244, 101140812, 110738...	[ "nonn", "tabl" ]
A009959	[ 1, 12, 49, 111, 218, 340, 504, 699, 929, 1189, 1492, 1802, 2186, 2545, 2973, 3426, 3918, 4467, 5033, 5565, 6230, 6806, 7534, 8277, 9009, 9787, 10621, 11475, 12259, 13202, 14214, 15094, 16188, 17291, 18204, 19425, 20459, 21577, 22931, 2415...	[ "nonn" ]
A178610	[ 4, 5, 9, 8, 11, 14, 19, 18, 25, 21, 30, 28, 34, 31, 35, 38, 49, 46, 53, 51, 49, 52, 62, 62, 63, 76, 70, 81, 73, 79, 89, 84, 80, 90, 91, 101, 109, 102, 116, 121, 105, 112, 117, 129, 116, 128, 123, 142, 138, 126, 147, ...	[ "nonn" ]
A171762	[ 4, 12, 22, 34, 44, 58, 72, 88, 100, 120, 126, 148, 164, 182, 196, 220, 228, 254, 264, 284, 304, 328, 338, 358, 382, 400, 420, 444, 442, 478, 494, 518, 544, 564, 562, 602, 622, 648, 652, 690, 684, 730, 740, 768, 790, 812, 828...	[ "nonn", "easy" ]
A025487	[ 1, 2, 4, 6, 8, 12, 16, 24, 30, 32, 36, 48, 60, 64, 72, 96, 120, 128, 144, 180, 192, 210, 216, 240, 256, 288, 360, 384, 420, 432, 480, 512, 576, 720, 768, 840, 864, 900, 960, 1024, 1080, 1152, 1260, 1296, 1440, 1536, 1680, ...	[ "nonn", "easy", "nice", "core" ]
A369736	[ 1, 0, 1, -1, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, -1, 0, 1, 0, -1, 0,...	[ "sign", "tabl", "easy" ]
A379475	[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0...	[ "nonn" ]
A219524	[ 8, 18, 124, 1090, 6994, 42906, 241413, 1327694, 7148589, 37181863, 185383785, 881615968, 4010119499, 17516997873, 73780512955, 300596497963, 1187489293042, 4557540770898, 17022492697401, 61969041626283, 220187547195208 ]	[ "nonn" ]
A086010	[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 0, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0...	[ "base", "nonn" ]
A308096	[ 0, 0, 1, 0, 2, 2, 5, 3, 10, 7, 16, 13, 24, 20, 38, 29, 50, 45, 69, 58, 92, 79, 117, 104, 146, 131, 186, 162, 222, 205, 270, 243, 324, 294, 381, 351, 444, 411, 523, 477, 596, 560, 686, 636, 784, 730, 886, 832, 996, 938,...	[ "nonn" ]
A198556	[ 9, 0, 2, 2, 9, 5, 9, 7, 5, 6, 8, 7, 3, 7, 0, 9, 8, 1, 6, 7, 1, 5, 2, 6, 9, 9, 7, 4, 7, 9, 8, 5, 2, 4, 4, 2, 1, 1, 1, 9, 1, 3, 6, 2, 0, 2, 8, 2, 1, 2, 8, 3, 4, 6, 4, 3, 8, 0, 5, 1, 4, 0, 2, 0...	[ "nonn", "cons" ]
A177452	[ 1, 10, 66, 366, 1851, 8858, 40890, 184098, 813948, 3549758, 15317294, 65537334, 278489619, 1176688494, 4948173294, 20723897214, 86494746204, 359915608314, 1493718226314, 6184858989714, 25556291840484, 105406847513658 ]	[ "nonn" ]
A341605	[ 3, 7, 4, 2, 13, 6, 15, 8, 31, 8, 9, 40, 48, 57, 12, 7, 32, 156, 96, 133, 14, 12, 26, 72, 400, 168, 183, 18, 31, 16, 248, 16, 1464, 252, 307, 20, 13, 121, 84, 684, 216, 2380, 360, 381, 24, 21, 124, 781, 144, 1862, 280...	[ "nonn", "frac", "tabl", "look" ]
A051271	[ 3, 6, 16, 64, 512, 5824, 92288, 1659136, 36495872, 1021871104, 30656104448, 1103619690496, 44144787464192, 1854081073168384, 85287729365024770, 4434961926979649500, 257227791764816000000, 1.5433667505888952e+22 ]	[ "nonn" ]
A141526	[ 1, 2, 4, 6, 24, 34, 36, 66, 78, 86, 96, 100, 104, 114, 116, 120, 130, 144, 152, 156, 162, 182, 204, 228, 230, 258, 264, 276, 324, 356, 386, 394, 402, 416, 420, 428, 434, 444, 480, 520, 552, 582, 584, 606, 612, 632, 666, 67...	[ "nonn" ]
A253970	[ 2, 13, 29, 43, 47, 59, 103, 113, 149, 157, 163, 167, 179, 193, 199, 223, 239, 257, 269, 293, 313, 367, 401, 419, 463, 491, 509, 557, 569, 587, 599, 607, 613, 619, 643, 647, 659, 673, 677, 701, 727, 761, 773, 809, 823, 853, 8...	[ "nonn", "easy" ]
A206081	[ 55864, 2567488, 101839532, 3974151636, 153755370824, 5940013254736, 229359164378264, 8855443936590808, 341897525465661700, 13200258981410198000, 509647127610240000000, 1.9676927182424278e+22 ]	[ "nonn" ]
A305409	[ 1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 31, 33, 35, 45, 49, 51, 63, 65, 73, 75, 81, 85, 93, 99, 105, 107, 119, 125, 127, 129, 135, 147, 153, 155, 165, 175, 189, 195, 217, 219, 225, 231, 243, 245, 255, 257, 273, 279, 289, 29...	[ "nonn", "base" ]
A378232	[ 1, 3, 39, 971, 38140, 2126890, 157874467, 14928602309, 1741809491235, 244735956424795, 40624759074089020, 7844197919242438000, 1.739438713163799e+21, 4.382248997127599e+23, 1.242868421626792e+26, 3.9368769274679275e+28, 1.383169358320676e+31 ]	[ "nonn" ]
A333945	[ 12, 24, 30, 32, 36, 40, 42, 44, 48, 54, 56, 60, 64, 66, 68, 70, 72, 76, 78, 80, 84, 88, 90, 96, 104, 108, 110, 112, 114, 120, 126, 128, 130, 132, 136, 140, 144, 150, 152, 154, 156, 160, 162, 164, 168, 170, 172, 174, 176,...	[ "nonn" ]
A314085	[ 1, 5, 11, 16, 20, 24, 28, 32, 36, 40, 45, 51, 56, 61, 67, 72, 76, 80, 84, 88, 92, 96, 101, 107, 112, 117, 123, 128, 132, 136, 140, 144, 148, 152, 157, 163, 168, 173, 179, 184, 188, 192, 196, 200, 204, 208, 213, 219, 224,...	[ "nonn" ]
A160546	[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 5...	[ "nonn", "easy" ]
A292854	[ 1, -2, 4, -6, 8, -12, 18, -24, 32, -44, 58, -76, 100, -128, 164, -210, 264, -332, 416, -516, 640, -790, 968, -1184, 1444, -1752, 2120, -2560, 3078, -3692, 4420, -5272, 6276, -7456, 8832, -10444, 12326, -14512, 17056, -20012, 23432, -2...	[ "sign" ]
A069572	[ 1, 21, 321, 2321, 52321, 252321, 7252321, 27252321, 327252321, 2327252321, 12327252321, 212327252321, 1212327252321, 21212327252321, 321212327252321, 2321212327252321, 12321212327252320, 212321212327252320 ]	[ "nonn", "base" ]
A304042	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...	[ "nonn", "tabl", "frac", "changed" ]
A318474	[ 1, 2, 2, 4, 2, 4, 2, 8, 4, 4, 2, 8, 2, 4, 4, 32, 2, 8, 2, 8, 4, 4, 2, 16, 4, 4, 8, 8, 2, 8, 2, 256, 4, 4, 4, 16, 2, 4, 4, 16, 2, 8, 2, 8, 8, 4, 2, 64, 4, 8, 4, 8, 2, 16, 4, 16, 4, 4, 2, 16, 2, 4...	[ "nonn", "mult" ]
A121382	[ 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 1, 2, 1, 5, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 5, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 7, 1, 2, 2, 1...	[ "easy", "nonn" ]

A027759

[ 1, 5, 1, 31, 1, 41, 1, 31, 1, 61, 1, 3421, 1, 5, 1, 557, 1, 821, 1, 371, 1, 121, 1, 3421, 1, 5, 1, 929, 1, 15745, 1, 557, 1, 5, 1, 2557843, 1, 5, 1, 15541, 1, 1805, 1, 743, 1, 241, 1, 60887, 1, 61, 1, 1673, 1, ...

[ "nonn", "frac" ]

A176999

[ 1, 1111010, 11, 11110, 11110101, 1111011101101010, 111, 1111011101101010000, 111101, 11110111011010, 111101011, 111101110, 11110111011010100, 11110111110101010, 1111, 111101110110, 11110111011010101000, 11110111011010111000, 1111011, 1111110, 111101110110101 ]

[ "nonn", "base" ]

A291775

[ 3, 18, 130, 1026 ]

[ "nonn", "more" ]

A230097

[ 0, 1, 3, 5, 11, 21, 39, 45, 75, 155, 181, 627, 923, 1241, 2505, 3915, 5221, 6475, 11309, 15595, 19637, 31595, 44491, 69451, 113447, 185269, 244661, 357081, 453677, 908091, 980853, 2960011, 2965685, 5931189, 11862197, 20437147, 22193965, 43586...

[ "nonn", "base" ]

A216384

[ 6, 38, 42, 62, 146, 1145, 4214, 15590, 47058, 121935, 464834, 4049465, 4759314, 7756755, 15838490, 18284105, 127137997, 132734042, 141393578, 353493351, 435485242, 470458377, 1056410914 ]

[ "nonn", "more" ]

A307392

[ 1, 1, 1, 1, 2, 3, 3, 3, 3, 4, 6, 9, 11, 12, 12, 12, 13, 15, 18, 22, 27, 34, 42, 50, 56, 60, 63, 66, 70, 76, 84, 94, 106, 120, 136, 154, 177, 206, 241, 279, 317, 352, 381, 404, 423, 442, 464, 492, 528, 574, 630, 694...

[ "nonn" ]

A350003

[ 37, 87, 31, 87, 87, 87, 72979, 17781, 1263, 31 ]

[ "nonn", "tabl", "more" ]

A159170

[ 1, 37, 895, 18261, 344382, 6268019, 112703308, 2029828260, 36942033435, 683494734409 ]

[ "nonn" ]

A288073

[ 1385670, 126264820, 5593305476, 164767964504, 3682811916980, 67173739068760, 1046677747672360, 14373136466094880, 177882700353757470, 2017523504473480000, 21241931655650630000, 209732362862241100000, 1.9578302167393373e+21, 1.7394726697224718e+22, 1.479081950648697e+23 ]

[ "nonn" ]

A217011

[ 1, 5, 19, 6, 8, 9, 10, 2, 3, 4, 18, 41, 73, 42, 20, 7, 24, 25, 26, 27, 28, 11, 12, 13, 14, 15, 17, 40, 72, 113, 163, 114, 74, 43, 21, 23, 49, 50, 51, 52, 53, 54, 55, 29, 30, 31, 32, 33, 34, 35, 16, 39, 71, 112,...

[ "nonn", "easy" ]

A321612

[ 2, 4, 6, 7, 9, 13, 16, 21, 31 ]

[ "nonn", "more" ]

A237644

[ 1, 1, 4, 63, 2116, 113550, 8687239, 891701755, 118110608484, 19625931563166, 4001492423904134, 983010151440620900, 286534726440573760000, 9.781052984098813e+22, 3.8660405402434292e+25, 1.7520204438205013e+28 ]

[ "nonn" ]

A338035

[ 1, 2, 1, 1, 5, 1, 0, 12, 8, 1, 0, 19, 33, 11, 1, 0, 21, 96, 63, 14, 1, 0, 15, 217, 256, 102, 17, 1, 0, 6, 386, 830, 524, 150, 20, 1, 0, 1, 533, 2241, 2147, 927, 207, 23, 1, 0, 0, 560, 5079, 7440, 4541, 1492, 273,...

[ "nonn", "tabl" ]

A134219

[ 37, 168, 198, 246, 390, 417, 432, 495, 541, 704, 717, 843, 945, 975, 985, 997, 1047, 1166, 1227, 1237, 1345, 1384, 1427, 1535, 1618, 1641, 1733, 1881, 1915, 1944, 2054, 2128, 2821, 2856, 2872, 2897, 2902, 2905, 2918, 2944, 2960, 2997,...

[ "nonn", "base" ]

A233872

[ 34416, 155104, 907940, 6887232, 57147272, 530983144, 5012939992, 50952500976, 512188465988, 5479606300380, 57126934560812, 630600586218188, 6718939422891932, 75570674572025340, 815496420906106900 ]

[ "nonn" ]

A176187

[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 1, 3, 1, 3, 1, 1, 3, 1, 1, 3, 1, 3, 1, 3, 1, 1, 3, 1, 1, 1, 3, 1, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 1...

[ "nonn" ]

A048363

[ 7, 87, 312, 1287, 10572, 81103, 397212, 881912, 5270652, 7601169, 134021535, 421518419, 1402775027, 4204494972, 42305694389, 397212509427, 1943649189427, 6130065071251, 76024844477168, 98844816642745, 1333325833012312, 6069248534849827, 13303299356842428, 19119983728334...

[ "nonn", "base" ]

A139501

[ 23, 47, 73, 101, 131, 139, 163, 197, 233, 239, 271, 277, 311, 347, 349, 353, 397, 443, 461, 463, 491, 499, 541, 577, 587, 593, 647, 653, 691, 719, 739, 761, 809, 821, 823, 853, 859, 883, 929, 947, 967, 997, 1013, 1051, 1061, 1...

[ "nonn" ]

A365007

[ 1, 2, 7, 6, 16, 17, 29, 22, 52, 42, 67, 57, 92, 79, 142, 86, 154, 143, 191, 146, 266, 189, 277, 217, 341, 262, 430, 279, 436, 402, 497, 342, 634, 444, 674, 507, 704, 553, 878, 562, 862, 766, 947, 677, 1222, 807, 1129, 857,...

[ "nonn", "look" ]

A193485

[ 0, 4, 46, 2731, 700180, 861416011, 4011951942490 ]

[ "nonn" ]

A281853

[ 0, 0, 1, 0, 1, 2, 1, 4, 3, 6, 10, 8, 19, 22, 26, 48, 53, 78, 112, 136, 205, 264, 354, 504, 639, 890, 1204, 1568, 2173, 2868, 3826, 5192, 6839, 9214, 12295, 16296, 21894, 28996, 38624, 51552, 68230, 90930, 120715, 159988, 212728,...

[ "nonn" ]

A213571

[ 1, 5, 3, 16, 13, 7, 42, 38, 29, 15, 99, 94, 82, 61, 31, 219, 213, 198, 170, 125, 63, 466, 459, 441, 406, 346, 253, 127, 968, 960, 939, 897, 822, 698, 509, 255, 1981, 1972, 1948, 1899, 1809, 1654, 1402, 1021, 511, 4017, 4007,...

[ "nonn", "tabl", "easy" ]

A178370

[ 7, 25, 26, 44, 133, 187, 125, 161, 403, 493, 296, 350, 817, 943, 539, 611, 1375, 1537, 854, 944, 2077, 2275, 1241, 1349, 2923, 3157, 1700, 1826, 3913, 4183, 2231, 2375, 5047, 5353, 2834, 2996, 6325, 6667, 3509, 3689, 7747, 8125, 425...

[ "nonn", "easy" ]

A105797

[ 0, 1, 3, 19, 135, 1291, 14343, 188539, 2815095, 47412811, 886239783, 18231365659, 409053408855, 9943622273131, 260300948527623, 7300927107288379, 218426614502831420, 6943261704033435000, 233692323131307300000 ]

[ "nonn", "easy" ]

A292986

[ 70, 4030, 5390, 5830, 7192, 7400, 7912, 9272, 10430, 10570, 10792, 10990, 11410, 11690, 11830, 12110, 12530, 12670, 13370, 13510, 13790, 13930, 14770, 15610, 15890, 16030, 16310, 16730, 16870, 17272, 17570, 17990, 18410, 18830, 18970, 19390, 19...

[ "nonn" ]

A213004

[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 39, 14, 8935434522, 426879, 27 ]

[ "nonn", "base" ]

A054222

[ 4, 6, 2, 17, 25, 22, 62, 123, 23, 214, 341, 510, 246, 727, 932, 998, 573, 1329, 1726, 2195, 2742, 3373, 3515, 2516, 4094, 4155, 4911, 5006, 5830, 1746, 6857, 5352, 4057, 7998, 8273, 9259, 10646, 1331, 12165, 12239, 884, 13822, 15623...

[ "nice", "nonn" ]

A072124

[ 1, 14, 19, 25, 32, 40, 33, 60, 63, 47, 68, 64, 74, 87, 79, 73, 97, 110, 107, 132, 134, 129, 116, 136, 123, 113, 145, 143, 160, 180, 153, 171, 185, 176, 224, 209, 196, 207, 229, 221, 211, 167, 236, 252, 260, 201, 235, 274, ...

[ "base", "nonn" ]

A078491

[ 1, 1, 2, 60, 360360, 219060189739591200, 1.749342047920661e+57 ]

[ "nonn" ]

A107377

[ 0, 1, 1, 2, 5, 19, 84, 393, 1865, 8886, 42381, 202187, 964640, 4602409, 21958729, 104768258, 499864605, 2384926971, 11378834836, 54290082897, 259025915025, 1235850473974, 5896423120549, 28132695944723, 134225201438720 ]

[ "nonn", "easy" ]

A113552

[ 1, 2, 6, 3, 12, 4, 20, 5, 10, 30, 15, 60, 420, 7, 14, 42, 21, 84, 28, 140, 35, 70, 210, 105, 630, 9, 18, 90, 45, 180, 36, 252, 63, 126, 1260, 315, 1890, 27, 54, 270, 135, 540, 108, 756, 189, 378, 3780, 945, 5670, 81, ...

[ "easy", "nonn" ]

A054795

[ 23, 25, 29, 31, 35, 41, 43, 53, 55, 65, 73, 79, 95, 113, 121, 133, 151, 155, 179, 185, 205, 223, 233, 263, 265, 295, 311, 329, 361, 365, 403, 415, 443, 473, 485, 529, 535, 575, 601, 623, 671, 673, 725, 745, 779, 823, 835, ...

[ "nonn" ]

A129381

[ 1, 1, 2, 2, 2, 2, 2, 2, 8, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 48, 49, 49, 49, 49, 49, 49, 49, 49, ...

[ "nonn" ]

A072167

[ 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916799, 479001478, 6227012074, 87177809092, 1307651456625, 20921799763626, 355647213494682, 6400805686152436, 121585553747301440, 2430677026538811400 ]

[ "nonn" ]

A049694

[ 1, 6, 10, 15, 22, 31, 38, 49, 62, 73, 88, 105, 116, 137, 158, 173, 198, 223, 240, 269, 298, 319, 348, 383, 408, 441, 480, 507, 548, 593, 620, 667, 706, 739, 790, 833, 868, 921, 978, 1015, 1072, 1133, 1168, 1233, 1298, 1339, ...

[ "nonn" ]

A218881

[ 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 10771, 0 ]

[ "nonn" ]

A382543

[ 1, 2, 9, 58, 428, 3360, 27295, 226538, 1907889, 16239034, 139326959, 1202856930, 10436521180, 90920984306, 794767853334, 6967126281976, 61224158085137, 539141091531558, 4756357637006941, 42028309478725096, 371898032568193540, 3294977494088601600 ]

[ "nonn", "easy" ]

A275941

[ 1, 12, 127, 1222, 11096, 97140, 830152, 6977918, 57968938, 477479647, 3908025133, 31832823274, 258341395508, 2090604162540, 16880171617952, 136054564607870, 1095059149237006, 8803843758642693, 70715260139217140, 567591311612071200, 4553028235287085600 ]

[ "nonn", "easy" ]

A311916

[ 1, 4, 8, 13, 17, 22, 26, 30, 34, 39, 43, 46, 51, 55, 61, 65, 70, 72, 77, 81, 87, 88, 94, 97, 104, 109, 113, 115, 120, 123, 130, 131, 137, 139, 147, 152, 157, 157, 164, 165, 173, 173, 181, 181, 190, 195, 200, 200, 207, ...

[ "nonn" ]

A238004

[ 2, 2, 4, 4, 2, 4, 6, 4, 4, 6, 4, 4, 12, 2, 4, 4, 8, 6, 8, 4, 4, 8, 12, 4, 12, 4, 4, 8, 8, 4, 6, 18, 8, 4, 4, 8, 8, 4, 12, 12, 6, 24, 2, 4, 4, 8, 8, 4, 8, 12, 6, 12, 12, 24, 10, 4, 4, 8, 8, 4, 8, ...

[ "nonn", "easy" ]

A001490

[ 1, -12, 66, -220, 483, -660, 252, 1320, -4059, 6644, -6336, 240, 12255, -27192, 35850, -27972, -2343, 50568, -99286, 122496, -96162, 11584, 115116, -242616, 315216, -283800, 128304, 126280, -409398, 622644, -671550, 501468, -122508, -382360 ]

[ "sign" ]

A050193

[ 1, 1, 1, 2, 3, 4, 7, 11, 17, 28, 45, 71, 116, 187, 300, 487, 787, 1270, 2057, 3327, 5377, 8704, 14081, 22774, 36855, 59629, 96467, 156096, 252563, 408631, 661194, 1069825, 1730974, 2800799, 4531773, 7332501, 11864274, 19196775 ]

[ "nonn" ]

A019856

[ 7, 3, 1, 3, 5, 3, 7, 0, 1, 6, 1, 9, 1, 7, 0, 4, 8, 3, 2, 8, 7, 5, 4, 3, 6, 0, 8, 2, 7, 5, 6, 2, 2, 4, 0, 3, 3, 7, 8, 3, 9, 6, 5, 4, 4, 7, 6, 2, 5, 3, 7, 8, 4, 4, 2, 2, 1, 1, 6, 8, 7, 9, 4, 4...

[ "nonn", "cons" ]

A159327

[ 1, 10, -142, -6260, 40492, 6464600, 15650680, -9230092400, -118813175920, 16681327127200, 425588368425760, -36112927963566400, -1494045516385037000, 89931487642346460000, 5.599582070970791e+21, -2.4869205942256188e+23, -2.281340351184959e+25 ]

[ "sign", "frac" ]

A277975

[ 1, 6, 56, 431, 2931, 18556, 112306, 659181, 3784181, 21362306, 119018556, 656127931, 3585815431, 19454956056, 104904174806, 562667846681, 3004074096681, 15974044799806, 84638595581056, 447034835815431, 2354383468627931, 12367963790893556, 64820051193237304 ]

[ "nonn", "easy" ]

A090118

[ 3, 7, 23, 359, 139, 619, 113, 1933, 523, 887, 3229, 1669, 2477, 10399, 5749, 10799, 9973, 22193, 30593, 25261, 121081, 76163, 93001, 157579, 212507, 35677, 118973, 1121453, 190921, 672379, 693881, 1003963, 259033, 1646033, 675643, 1207769 ]

[ "nonn" ]

A295945

[ 1, -1, 2, -3, 0, 30, -240, 1470, -6720, 12600, 226800, -4296600, 48787200, -407206800, 1816214400, 19347728400, -691775884800, 12223324713600, -155222158291200, 1206712825718400, 6182374444646400, -501335892869011200, 12800637574960435000, -226664355546012400000, 2.64...

[ "sign" ]

A289894

[ 0, 6, 396, 201810, 1395190506 ]

[ "nonn", "more" ]

A297066

[ 2, 10, 205, 16059, 5651413, 7919440725, 42862620370029, 903073429362723000, 7.4176314123331505e+22, 2.37198677556019e+28, 2.9525329905069155e+34 ]

[ "nonn" ]

A028183

[ 1, 32, 653, 10876, 161673, 2240376, 29659621, 380803412, 4787944865, 59338124560, 728084033469, 8872019284908, 107592152638777, 1300465261202984, 15682817092702996, 188828216949912960 ]

[ "nonn" ]

A001531

[ 1, 1, 3, 7, 83, 109950, 28613442061634, 3.296696461111376e+31, 6.2322647787597335e+68 ]

[ "nonn", "nice" ]

A381904

[ 0, 0, 0, 0, 0, 144, 11616, 30976 ]

[ "nonn", "more" ]

A011247

[ 1, 2, 9, 6, 8, 3, 9, 5, 5, 4, 6, 5, 1, 0, 0, 9, 6, 6, 5, 9, 3, 3, 7, 5, 4, 1, 1, 7, 7, 9, 2, 4, 5, 1, 1, 5, 9, 8, 3, 5, 3, 4, 5, 1, 4, 9, 4, 2, 4, 9, 6, 5, 5, 1, 2, 8, 0, 7, 7, 9, 0, 5, 2, 2...

[ "nonn", "cons" ]

A328632

[ 0, 12, 24, 30, 42, 54, 60, 72, 84, 90, 102, 114, 120, 132, 144, 150, 162, 174, 180, 192, 204, 216, 228, 246, 258, 276, 288, 306, 318, 336, 348, 366, 378, 396, 408, 420, 432, 444, 450, 462, 474, 480, 492, 504, 510, 522, 534, ...

[ "nonn" ]

A089733

[ 1, 4, 13, 15, 19, 24, 59, 66, 131, 142, 157, 170, 191, 208, 233, 252, 307, 330, 379, 408, 499, 530, 557, 594, 709, 750, 827, 870, 991, 1038, 1123, 1176, 1301, 1360, 1399, 1460, 1493, 1560, 1693, 1764, 1907, 1980, 2099, 2178, 227...

[ "base", "nonn" ]

A059923

[ 1, 2, 3, 5, 8, 13, 20, 31, 48, 74, 114, 176, 271, 417, 642, 988, 1521, 2341, 3603, 5545, 8533, 13131, 20207, 31096, 47853, 73639, 113320, 174383, 268350, 412951, 635471, 977896, 1504837, 2315721, 3563551, 5483776, 8438716, 12985930, 1998341...

[ "easy", "nice", "nonn" ]

A228021

[ 2, 3, 29, 89, 251, 659, 937, 1307, 1453, 8179, 9391, 12097, 28499, 83969, 101209, 120739, 730993 ]

[ "nonn", "hard", "more" ]

A332561

[ 20, 20, 10, 105, 1512, 27720, 4620, 660, 144144, 16016, 5445440, 495040, 12697776, 976752, 69768, 823727520, 51482970, 3028410, 168245, 8855, 159845400, 5768642880, 262211040, 11400480, 475020, 543814622208, 20915947008, 774664704, 941432800 ]

[ "nonn", "look" ]

A193599

[ 0, 3, 5, 6, 8, 10, 11, 13, 16, 18, 21, 23, 24, 26, 28, 29, 31, 34, 36, 39, 41, 42, 44, 46, 47, 49, 52, 54, 55, 57, 59, 60, 62, 65, 67, 70, 72, 73, 75, 77, 78, 80, 83, 85, 88, 90, 91, 93, 95, 96, 98, 101, 103, 1...

[ "nonn" ]

A313005

[ 1, 4, 9, 14, 17, 22, 29, 33, 37, 41, 53, 53, 58, 59, 75, 71, 78, 77, 97, 89, 98, 95, 119, 107, 118, 113, 141, 125, 138, 131, 163, 143, 158, 149, 185, 161, 178, 167, 207, 179, 198, 185, 229, 197, 218, 203, 251, 215, 238, ...

[ "nonn" ]

A285470

[ 12, 22, 32, 42, 52, 62, 72, 82, 92, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 420, 421, 422, 423, 424, 425, 426, 427...

[ "nonn", "base", "easy" ]

A272796

[ 23, 223, 22273, 2222273, 22222222223, 2222222222273, 22222222222223556, 2222222222222222300, 2.2222222222222223e+22, 2.2222222222222224e+28, 2.222222222222222e+30, 2.2222222222222223e+36, 2.222222222222222e+40 ]

[ "nonn", "base" ]

A146487

[ 9, 9, 6, 5, 9, 8, 9, 2, 7, 4, 8, 0, 2, 4, 1, 2, 7, 3, 4, 1, 9, 1, 5, 9, 0, 4, 6, 3, 2, 9, 8, 9, 4, 6, 9, 2, 2, 9, 1, 0, 1, 0, 3, 9, 1, 0, 1, 1, 7, 8, 3, 8, 2, 0, 6, 5, 8 ]

[ "nonn", "cons", "less" ]

A190615

[ 1, -1, 2, -2, 1, -2, 0, -2, 0, 0, 2, 0, 3, -1, 2, -2, 2, -4, 0, 0, 0, 0, 2, 0, 3, 0, 2, -4, 0, -2, 0, -2, 0, 0, 0, 0, 2, -3, 4, -2, 1, -2, 0, -2, 0, 0, 2, 0, 2, -2, 2, -2, 4, -2, 0, 0, 0, 0, 0, 0, ...

[ "sign" ]

A099810

[ 1, 3, 7, 13, 25, 63, 103, 193, 489, 835, 1647, 4061, 6545, 12543, 31343, 53505, 105073, 258307, 424567, 790797, 2005641, 3420447, 6748855, 16634209, 26811769, 51377059, 128377535, 219165917, 430383937, 1058044767, 1739056639 ]

[ "nonn" ]

A223586

[ 2, 6, 32, 56, 1664, 2352, 1123232, 929038, 9405893184 ]

[ "nonn" ]

A104481

[ 1, 1, 1, 2, 1, 3, 2, 3, 2, 4, 3, 4, 4, 3, 5, 6, 4, 5, 5, 6, 6, 6, 5, 8, 7, 6, 7, 8, 7, 7, 9, 8, 9, 8, 9, 8, 8, 11, 10, 11, 10, 8, 11, 10, 12, 9, 12, 14, 9, 10, 14, 15, 11, 12, 10, 11, 16, 12, 15, 15...

[ "easy", "nonn" ]

A349966

[ 1, 0, 1, 16, 418, 17600, 1086979, 92223488, 10292241540, 1462309109760, 257739952352133, 55188518041440260, 14111052911099343000, 4.2466684673390663e+21, 1.485904567816768e+24, 5.981450099541389e+26 ]

[ "nonn" ]

A205669

[ 1, 5, 24, 62 ]

[ "nonn" ]

A301273

[ 2, 5, 10, 17, 28, 41, 58, 77, 100, 129, 160, 197, 238, 281, 328, 381, 440, 167, 568, 639, 712, 791, 38, 321, 212, 1161, 1264, 1371, 1480, 531, 1720, 1851, 1988, 2127, 2276, 809, 2584, 2747, 2914, 3087, 3266, 1149, 3638, 3831, 40...

[ "nonn", "frac" ]

A147328

[ 1, 1, 1, 1, 1, 1, 3, 9, 20, 47, 148, 487, 2258, 13693, 84456 ]

[ "nonn" ]

A249326

[ 7680, 541624, 30441964, 542821804, 6141387290, 47731565832, 287558999040, 1391469343606, 5699309648290, 20373369304928, 65131345488716, 189561387128430, 509206816277902, 1277977627718940, 3019132472920082 ]

[ "nonn" ]

A119289

[ 53, 89, 107, 113, 167, 179, 251, 317, 347, 389, 397, 419, 431, 443, 457, 461, 521, 599, 641, 643, 653, 709, 727, 761, 773, 797, 839, 863, 887, 907, 911, 977, 991, 1087, 1091, 1103, 1153, 1187, 1213, 1217, 1229, 1231, 1259, 1277, ...

[ "base", "nonn" ]

A271407

[ 0, 0, 0, 0, 0, 8, 0, 0, 14, 216, 0, 0, 15, 2592, 6048, 0, 0, 15, 7308, 896832, 203256, 0, 0, 15, 10368, 12228624, 685305792, 8627472, 0, 0, 15, 11160, 50382432, 64737526428, 1246974564672, 475098048, 0, 0, 15, 11244, 101140812, 110738...

[ "nonn", "tabl" ]

A009959

[ 1, 12, 49, 111, 218, 340, 504, 699, 929, 1189, 1492, 1802, 2186, 2545, 2973, 3426, 3918, 4467, 5033, 5565, 6230, 6806, 7534, 8277, 9009, 9787, 10621, 11475, 12259, 13202, 14214, 15094, 16188, 17291, 18204, 19425, 20459, 21577, 22931, 2415...

[ "nonn" ]

A178610

[ 4, 5, 9, 8, 11, 14, 19, 18, 25, 21, 30, 28, 34, 31, 35, 38, 49, 46, 53, 51, 49, 52, 62, 62, 63, 76, 70, 81, 73, 79, 89, 84, 80, 90, 91, 101, 109, 102, 116, 121, 105, 112, 117, 129, 116, 128, 123, 142, 138, 126, 147, ...

[ "nonn" ]

A171762

[ 4, 12, 22, 34, 44, 58, 72, 88, 100, 120, 126, 148, 164, 182, 196, 220, 228, 254, 264, 284, 304, 328, 338, 358, 382, 400, 420, 444, 442, 478, 494, 518, 544, 564, 562, 602, 622, 648, 652, 690, 684, 730, 740, 768, 790, 812, 828...

[ "nonn", "easy" ]

A025487

[ 1, 2, 4, 6, 8, 12, 16, 24, 30, 32, 36, 48, 60, 64, 72, 96, 120, 128, 144, 180, 192, 210, 216, 240, 256, 288, 360, 384, 420, 432, 480, 512, 576, 720, 768, 840, 864, 900, 960, 1024, 1080, 1152, 1260, 1296, 1440, 1536, 1680, ...

[ "nonn", "easy", "nice", "core" ]

A369736

[ 1, 0, 1, -1, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, 1, 0, -1, 0, 1, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, 0, -1, 0, 1, -1, 0, 1, 0, -1, 0,...

[ "sign", "tabl", "easy" ]

A379475

[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0...

[ "nonn" ]

A219524

[ 8, 18, 124, 1090, 6994, 42906, 241413, 1327694, 7148589, 37181863, 185383785, 881615968, 4010119499, 17516997873, 73780512955, 300596497963, 1187489293042, 4557540770898, 17022492697401, 61969041626283, 220187547195208 ]

[ "nonn" ]

A086010

[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 1, 0, 0, 0, 0, 0, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0...

[ "base", "nonn" ]

A308096

[ 0, 0, 1, 0, 2, 2, 5, 3, 10, 7, 16, 13, 24, 20, 38, 29, 50, 45, 69, 58, 92, 79, 117, 104, 146, 131, 186, 162, 222, 205, 270, 243, 324, 294, 381, 351, 444, 411, 523, 477, 596, 560, 686, 636, 784, 730, 886, 832, 996, 938,...

[ "nonn" ]

A198556

[ 9, 0, 2, 2, 9, 5, 9, 7, 5, 6, 8, 7, 3, 7, 0, 9, 8, 1, 6, 7, 1, 5, 2, 6, 9, 9, 7, 4, 7, 9, 8, 5, 2, 4, 4, 2, 1, 1, 1, 9, 1, 3, 6, 2, 0, 2, 8, 2, 1, 2, 8, 3, 4, 6, 4, 3, 8, 0, 5, 1, 4, 0, 2, 0...

[ "nonn", "cons" ]

A177452

[ 1, 10, 66, 366, 1851, 8858, 40890, 184098, 813948, 3549758, 15317294, 65537334, 278489619, 1176688494, 4948173294, 20723897214, 86494746204, 359915608314, 1493718226314, 6184858989714, 25556291840484, 105406847513658 ]

[ "nonn" ]

A341605

[ 3, 7, 4, 2, 13, 6, 15, 8, 31, 8, 9, 40, 48, 57, 12, 7, 32, 156, 96, 133, 14, 12, 26, 72, 400, 168, 183, 18, 31, 16, 248, 16, 1464, 252, 307, 20, 13, 121, 84, 684, 216, 2380, 360, 381, 24, 21, 124, 781, 144, 1862, 280...

[ "nonn", "frac", "tabl", "look" ]

A051271

[ 3, 6, 16, 64, 512, 5824, 92288, 1659136, 36495872, 1021871104, 30656104448, 1103619690496, 44144787464192, 1854081073168384, 85287729365024770, 4434961926979649500, 257227791764816000000, 1.5433667505888952e+22 ]

[ "nonn" ]

A141526

[ 1, 2, 4, 6, 24, 34, 36, 66, 78, 86, 96, 100, 104, 114, 116, 120, 130, 144, 152, 156, 162, 182, 204, 228, 230, 258, 264, 276, 324, 356, 386, 394, 402, 416, 420, 428, 434, 444, 480, 520, 552, 582, 584, 606, 612, 632, 666, 67...

[ "nonn" ]

A253970

[ 2, 13, 29, 43, 47, 59, 103, 113, 149, 157, 163, 167, 179, 193, 199, 223, 239, 257, 269, 293, 313, 367, 401, 419, 463, 491, 509, 557, 569, 587, 599, 607, 613, 619, 643, 647, 659, 673, 677, 701, 727, 761, 773, 809, 823, 853, 8...

[ "nonn", "easy" ]

A206081

[ 55864, 2567488, 101839532, 3974151636, 153755370824, 5940013254736, 229359164378264, 8855443936590808, 341897525465661700, 13200258981410198000, 509647127610240000000, 1.9676927182424278e+22 ]

[ "nonn" ]

A305409

[ 1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 31, 33, 35, 45, 49, 51, 63, 65, 73, 75, 81, 85, 93, 99, 105, 107, 119, 125, 127, 129, 135, 147, 153, 155, 165, 175, 189, 195, 217, 219, 225, 231, 243, 245, 255, 257, 273, 279, 289, 29...

[ "nonn", "base" ]

A378232

[ 1, 3, 39, 971, 38140, 2126890, 157874467, 14928602309, 1741809491235, 244735956424795, 40624759074089020, 7844197919242438000, 1.739438713163799e+21, 4.382248997127599e+23, 1.242868421626792e+26, 3.9368769274679275e+28, 1.383169358320676e+31 ]

[ "nonn" ]

A333945

[ 12, 24, 30, 32, 36, 40, 42, 44, 48, 54, 56, 60, 64, 66, 68, 70, 72, 76, 78, 80, 84, 88, 90, 96, 104, 108, 110, 112, 114, 120, 126, 128, 130, 132, 136, 140, 144, 150, 152, 154, 156, 160, 162, 164, 168, 170, 172, 174, 176,...

[ "nonn" ]

A314085

[ 1, 5, 11, 16, 20, 24, 28, 32, 36, 40, 45, 51, 56, 61, 67, 72, 76, 80, 84, 88, 92, 96, 101, 107, 112, 117, 123, 128, 132, 136, 140, 144, 148, 152, 157, 163, 168, 173, 179, 184, 188, 192, 196, 200, 204, 208, 213, 219, 224,...

[ "nonn" ]

A160546

[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 5...

[ "nonn", "easy" ]

A292854

[ 1, -2, 4, -6, 8, -12, 18, -24, 32, -44, 58, -76, 100, -128, 164, -210, 264, -332, 416, -516, 640, -790, 968, -1184, 1444, -1752, 2120, -2560, 3078, -3692, 4420, -5272, 6276, -7456, 8832, -10444, 12326, -14512, 17056, -20012, 23432, -2...

[ "sign" ]

A069572

[ 1, 21, 321, 2321, 52321, 252321, 7252321, 27252321, 327252321, 2327252321, 12327252321, 212327252321, 1212327252321, 21212327252321, 321212327252321, 2321212327252321, 12321212327252320, 212321212327252320 ]

[ "nonn", "base" ]

A304042

[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...

[ "nonn", "tabl", "frac", "changed" ]

A318474

[ 1, 2, 2, 4, 2, 4, 2, 8, 4, 4, 2, 8, 2, 4, 4, 32, 2, 8, 2, 8, 4, 4, 2, 16, 4, 4, 8, 8, 2, 8, 2, 256, 4, 4, 4, 16, 2, 4, 4, 16, 2, 8, 2, 8, 8, 4, 2, 64, 4, 8, 4, 8, 2, 16, 4, 16, 4, 4, 2, 16, 2, 4...

[ "nonn", "mult" ]

A121382

[ 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 1, 2, 1, 5, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 5, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 7, 1, 2, 2, 1...

[ "easy", "nonn" ]