N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A138595	[ 11, 12, 13, 14, 15, 16, 17, 21, 22, 31, 55, 205, 217, 255 ]	[ "nonn", "easy" ]
A141190	[ 2, 11, 43, 67, 107, 113, 137, 163, 179, 193, 211, 233, 281, 331, 337, 347, 379, 401, 443, 449, 457, 491, 499, 547, 569, 571, 617, 641, 659, 673, 683, 739, 809, 827, 883, 907, 947, 953, 977, 1009, 1019, 1033, 1051, 1129, 1163, ...	[ "nonn" ]
A080267	[ 1, 5, 13, 41, 81, 257, 449, 1313, 2497, 6465, 11265, 33665, 53249, 143617, 269313, 672257, 1114113, 3159041, 4980737, 13568001, 23904257, 57675777, 96468993, 275980289, 424673281, 1090535425, 1963720705, 4823482369, 7784628225 ]	[ "nonn" ]
A294704	[ 1, -1, -16, -713, -64711, -9688521, -2165724176, -675843638952, -280752881225790, -149800127712465760, -99844730464906330000, -8.130008226451579e+22, -7.941371030721482e+25, -9.165244569624527e+28 ]	[ "sign" ]
A112298	[ 1, -3, 1, 3, 0, -3, 2, -3, 1, 0, 0, 3, 2, -6, 0, 3, 0, -3, 2, 0, 2, 0, 0, -3, 1, -6, 1, 6, 0, 0, 2, -3, 0, 0, 0, 3, 2, -6, 2, 0, 0, -6, 2, 0, 0, 0, 0, 3, 3, -3, 0, 6, 0, -3, 0, -6, 2, 0, 0, 0, 2, ...	[ "sign", "mult" ]
A331490	[ 8, 16, 28, 32, 56, 64, 76, 98, 112, 128, 152, 172, 196, 212, 224, 256, 266, 304, 343, 344, 392, 424, 428, 448, 512, 524, 532, 602, 608, 652, 686, 688, 722, 742, 784, 848, 856, 896, 908, 931, 1024, 1048, 1052, 1064, 1204, 1216,...	[ "nonn" ]
A105364	[ 2, 1, 4, 6, 3, 5, 8, 10, 7, 12, 9, 11, 14, 16, 13, 18, 15, 20, 22, 17, 24, 26, 19, 21, 23, 28, 30, 25, 27, 32, 34, 29, 36, 31, 38, 33, 40, 42, 35, 44, 37, 46, 39, 41, 48, 50, 52, 54, 43, 45, 56, 47, 58, 49, 6...	[ "nonn" ]
A035339	[ 8, 29, 42, 63, 84, 97, 118, 131, 152, 173, 186, 207, 228, 241, 262, 275, 296, 317, 330, 351, 364, 385, 406, 419, 440, 461, 474, 495, 508, 529, 550, 563, 584, 605, 618, 639, 652, 673, 694, 707, 728, 741, 762, 783, 796, 817, 8...	[ "nonn" ]
A364868	[ 1, 2, 3, 4, 7, 9, 10, 12, 13, 15, 18, 22, 24, 25, 27, 28, 30, 34, 37, 39, 43, 45, 48, 49, 57, 58, 60, 64, 67, 69, 70, 73, 78, 79, 84, 87, 88, 90, 93, 97, 99, 100, 102, 105, 108, 112, 114, 115, 127, 130, 132, 135, ...	[ "nonn", "easy" ]
A362483	[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 10, 1, 1, 1, 4, 19, 70, 1, 1, 1, 5, 28, 169, 646, 1, 1, 1, 6, 37, 298, 2041, 7576, 1, 1, 1, 7, 46, 457, 4186, 30811, 106744, 1, 1, 1, 8, 55, 646, 7081, 74116, 560827, 1761...	[ "nonn", "tabl" ]
A032164	[ 1, 6, 15, 70, 315, 1554, 7735, 39990, 209790, 1119720, 6045837, 32981550, 181394535, 1004668770, 5597420295, 31345665106, 176319264240, 995685849690, 5642219252460, 32071565263710, 182807918979777 ]	[ "nonn", "easy", "nice" ]
A339959	[ 0, 0, 1, 2, 2, 0, 1, 1, 2, 2, 3, 2, 1, 2, 1, 3, 1, 2, 3, 3, 1, 1, 2, 1, 5, 2, 1, 4, 1, 3, 4, 6, 1, 2, 3, 0, 1, 0, 1, 0, 0, 3, 2, 1, 1, 1, 0, 3, 4, 5, 1, 5, 5, 0, 3, 0, 0, 8, 1, 0, 5, 2, 3, 2...	[ "nonn" ]
A024548	[ 1, 2, 5, 1, 1, 2, 8, 1, 1, 3, 19, 1, 1, 4, 1, 1, 2, 5, 1, 1, 2, 9, 1, 1, 3, 30, 1, 2, 4, 1, 1, 2, 6, 1, 1, 2, 11, 1, 1, 3, 71, 1, 2, 4, 1, 1, 2, 7, 1, 1, 2, 15, 1, 1, 3, 1, 1, 2, 5, 1, 1, 2, 8...	[ "nonn" ]
A001986	[ 19, 43, 43, 67, 67, 163, 163, 163, 163, 163, 163, 222643, 1333963, 1333963, 2404147, 2404147, 20950603, 51599563, 51599563, 96295483, 96295483, 146161723, 1408126003, 3341091163, 3341091163, 3341091163, 52947440683, 52947440683, 52947440683, 193310265163 ]	[ "nonn" ]
A052000	[ 0, 1, 5, 433494437, 4807526976, 53316291173 ]	[ "nonn", "base" ]
A283488	[ 0, 0, 2, 12, 64, 312, 1460, 6624, 29394, 128264, 552384, 2353888, 9943896, 41703328, 173822258, 720671156, 2974187392, 12224902712, 50069348140, 204417445696, 832198630882, 3379257614032, 13690075484800, 55344113101440 ]	[ "nonn" ]
A320517	[ 3, 97, 241, 337, 577, 1249, 3361, 3697, 4801, 6961, 8191, 10657, 14449, 16561, 18049, 23761, 25537, 31249, 32257, 37537, 48049, 49297, 64081, 65521, 77617, 79201, 89041, 120049, 126001, 138337, 140449, 153457, 171697, 174049, 181201, 193441, 20...	[ "nonn" ]
A317256	[ 1, 1, 2, 3, 5, 6, 11, 13, 19, 25, 35, 42, 61, 74, 98, 122, 161, 194, 254, 304, 388, 472, 589, 700, 878, 1044, 1278, 1525, 1851, 2182, 2651, 3113, 3735, 4389, 5231, 6106, 7278, 8464, 9995, 11631, 13680, 15831, 18602, 21463, 25068...	[ "nonn" ]
A201460	[ 1, 15, 1, 19, 51, 1, 49, 1, 1, 15, 51, 9, 21, 211, 79, 21, 7, 31, 129, 105, 87, 21, 21, 13, 7, 109, 57, 55, 159, 75, 231, 73, 33, 19, 57, 75, 3, 49, 207, 93, 463, 15, 141, 421, 151, 177, 237, 1, 99, 49, 129, 211, ...	[ "nonn" ]
A143215	[ 4, 15, 50, 119, 308, 533, 986, 1463, 2300, 3741, 4960, 7289, 9758, 12083, 15416, 20193, 25960, 30561, 38056, 45369, 51976, 62489, 72542, 85707, 102820, 117261, 130192, 146697, 161320, 180009, 218440, 242481, 272356, 295653, 339124, 366477 ]	[ "nonn" ]
A167718	[ 1, 49, 121, 169, 361, 529, 1849, 2401, 3721, 6241, 8281, 9409, 11881, 14161, 14641, 19321, 20449, 25921, 27889, 39601, 49729, 51529, 52441, 69169, 76729, 83521, 89401, 94249, 104329, 113569, 124609, 143641, 165649, 175561, 187489, 190969 ]	[ "base", "nonn" ]
A353408	[ 2, 7, 3, 11, 23, 59, 47, 71, 107, 167, 131, 83, 179, 347, 191, 263, 239, 227, 251, 311, 383, 419, 359, 443, 479, 503, 431, 467, 491, 647, 587, 599, 683, 719, 563, 743, 659, 827, 887, 839, 983, 911, 863, 1019, 947, 1091, 971,...	[ "nonn" ]
A318130	[ 2, 3, 11, 219, 64595, 4294642035, 18446744047940727000, 3.402823669209385e+38, 1.157920892373162e+77 ]	[ "nonn" ]
A379823	[ 1, 1, 4, 17, 76, 352, 1667, 8017, 38992, 191276, 944648, 4690688, 23396023, 117130483, 588267604, 2962532945, 14954741680, 75647585152, 383359922324, 1945925312492, 9891894347360, 50350481125000, 256592858798416, 1309047896676352, 6684914267741951, 34168808617063930...	[ "nonn" ]
A347976	[ 1, 2, 4, 3, 8, 11, 4, 13, 22, 26, 5, 19, 38, 52, 57, 6, 26, 60, 94, 114, 120, 7, 34, 89, 158, 213, 240, 247, 8, 43, 126, 251, 376, 459, 494, 502, 9, 53, 172, 381, 632, 841, 960, 1004, 1013, 10, 64, 228, 557, 1018, 14...	[ "nonn", "tabl" ]
A041240	[ 11, 23, 517, 1057, 23771, 48599, 1092949, 2234497, 50251883, 102738263, 2310493669, 4723725601, 106232456891, 217188639383, 4884382523317, 9985953686017, 224575363615691, 459136680917399, 10325582343798468, 21110301368514336, 474752212451113860 ]	[ "nonn", "cofr", "frac", "easy" ]
A203673	[ 1, 21, 254163, 11213968422384, 6.45145000511735e+24, 1.2785799326363207e+41, 1.9119977388653487e+62 ]	[ "nonn" ]
A240259	[ 90, 1814, 45436, 1378558, 43503375, 1386865953, 44332944831, 1418479860917, 45399588682689, 1453222251668706, 46519367131258040, 1489173716085668000, 47671799079217180000, 1.5260893996302624e+21 ]	[ "nonn" ]
A347256	[ 1, 1, 2, 1, 2, 1, 2, 4, 1, 2, 1, 2, 3, 6, 1, 2, 4, 1, 2, 3, 6, 1, 2, 4, 1, 2, 5, 10, 1, 2, 4, 1, 2, 3, 4, 6, 12, 1, 2, 3, 6, 1, 2, 4, 1, 2, 4, 8, 1, 2, 4, 8, 16, 1, 2, 3, 6, 1, 2, 3, 6, 9, 18,...	[ "nonn", "tabf" ]
A335632	[ 1, 2, 3, 8, 11, 25, 37, 97, 142, 316, 463, 1150, 1747, 4298, 6599, 16641, 25800, 65025, 101027, 256245, 399972, 1017939, 1589375, 4048559, 6328766, 16148228, 25252615, 53243252 ]	[ "nonn", "more" ]
A256065	[ 2, 8, 46692, 58896, 59949, 186633, 186673, 949968, 1587616, 2989584, 58988961, 245878784, 914457625, 2439577764, 2754991369, 4161798288, 4161798468, 4629457984, 4897936656, 29859851664, 34828536976, 41664977536, 59998484736, 96745892625, 134994579556 ]	[ "nonn", "base" ]
A149649	[ 1, 1, 5, 15, 71, 265, 1261, 5203, 24955, 108585, 524197, 2355797, 11426453, 52469187, 255398251, 1190735689, 5812102729, 27403169351, 134056152587, 637477945257, 3124256823521, 14956369411357, 73413193456245, 353320748164941, 1736537145782025, 8393821968261463, 41...	[ "nonn", "walk" ]
A277931	[ 1, 11, 100, 1110, 10000, 111000, 1000100, 11101110, 100000000, 1110000000, 10001000000, 111011100000, 1000000010000, 11100000111000, 100010001000100, 1110111011101110, 10000000000000000, 111000000000000000, 1000100000000000000, 11101110000000000000 ]	[ "nonn", "easy" ]
A170799	[ 0, 1, 66048, 64599606, 8590458880, 381474609375, 8463359955456, 116315398231228, 1125900443713536, 8338592593225485, 50000005000000000, 252723527218359200, 1109305584328900600, 4325208028619915000, 15245673509292925000, 49263062956171880000, 147573953139432230000 ]	[ "nonn", "easy" ]
A365557	[ 1, 5, 60, 1105, 27505, 862900, 32665935, 1448431605, 73618245530, 4219213176975, 269178309769385, 18919087590749230, 1452439246800583700, 120926788470961900000, 1.085250578407319e+22, 1.0443496659689974e+24, 1.072735337238393e+26 ]	[ "nonn" ]
A340708	[ 1, 2, 3, 5, 8, 13, 24, 40, 69, 130, 231, 408, 689, 1272, 2153, 3960, 6993, 12560 ]	[ "nonn", "hard", "more" ]
A269893	[ 5, 3, 5, 6, 5, 6, 6, 5, 6, 0, 1, 5, 6, 9, 9, 8, 6, 1, 1, 4, 4, 8, 6, 0, 2, 0, 0, 6, 9, 5, 3, 2, 2, 8, 5, 4, 8, 6, 9, 7, 3, 1, 7, 3, 7, 2, 3, 2, 9, 8, 3, 2, 5, 9, 3, 6, 4, 8, 4, 0, 4, 5, 1, 9...	[ "nonn", "cons" ]
A020423	[ 1831, 1999, 2149, 2791, 3292, 4126, 4237, 4393, 4639, 4897, 5121, 5279, 5534, 5971, 5996, 6621, 6729, 7209, 7214, 7661, 7737, 8014, 8129, 8251, 8361, 8457, 8577, 8674, 8812, 8817, 8947, 9356, 9376, 9469, 9541, 9753, 10063, 10113, 10487, 1...	[ "nonn" ]
A069830	[ 2, 2, 3, 8, 6, 4, 9, 17, 24, 15, 6, 10, 21, 35, 44, 49, 30, 11, 53, 36, 13, 62, 74, 12, 25, 51, 80, 54, 28, 9, 98, 114, 69, 134, 75, 26, 27, 125, 144, 149, 90, 19, 96, 49, 99, 123, 130, 170, 114, 58, 199, 120, 25...	[ "nonn" ]
A319625	[ 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 3 ]	[ "nonn", "more" ]
A331543	[ 0, 1, 100, 121, 10000, 10201, 12100, 12321, 22201, 123201, 130321, 1000000, 1002001, 1020100, 1022121, 1210000, 1212201, 1232100, 1320201, 2220100, 3101121, 12320100, 13032100, 100000000, 100020001, 100200100, 100220121, 102010000, 102030201, 102212100, 10...	[ "nonn", "base" ]
A146901	[ 1, 1, 1, 3, 9, 19, 49, 345, 3029, 26343, 253497, 4034589, 91237121, 2505865849, 83922611151, 3827327413577, 239094333954443, 19417775019886244 ]	[ "nonn" ]
A256022	[ 33, 68, 154, 352, 798, 1804, 4086, 9304, 21194, 48176, 109506, 249120, 566754, 1289056, 2931842, 6668688, 15168650, 34502104, 78476674, 178499728, 406009530, 923494792, 2100545026, 4777818256, 10867446266, 24718685528, 56224184050 ]	[ "nonn" ]
A057037	[ 1, 1, 2, 4, 2, 5, 3, 1, 5, 3, 1, 6, 4, 2, 8, 6, 4, 2, 9, 7, 5, 3, 1, 9, 7, 5, 3, 1, 10, 8, 6, 4, 2, 12, 10, 8, 6, 4, 2, 13, 11, 9, 7, 5, 3, 1, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 16, ...	[ "nonn" ]
A249775	[ 3, 0, 11, 19, 17, 79, 23, 151, 67, 53, 37, 107, 47, 131, 67, 71, 83, 0, 79, 137, 293, 131, 89, 101, 109, 113, 283, 149, 12923, 149, 317, 181, 1193, 157, 163, 157, 163, 193, 173, 18041, 307, 269, 227, 0, 2897, 211, 257, 331...	[ "nonn", "base" ]
A277765	[ 0, 356, 21141, 7824415, 1487830718, 343944986355, 74591651561541, 16513537201433122, 3631417278822016000, 800314315609344700000, 1.7625254261632642e+23, 3.882500200269685e+25 ]	[ "nonn" ]
A065455	[ 1, 2, 4, 7, 14, 25, 49, 89, 172, 316, 605, 1120, 2131, 3965, 7513, 14026, 26504, 49591, 93538, 175277, 330205, 619369, 1165892, 2188312, 4117045, 7730828, 14539447, 27309529, 51349169, 96468034, 181357036, 340753271, 640539142, 1203616849 ]	[ "nonn", "easy" ]
A027951	[ 1, 8, 129, 967, 4950, 20175, 70954, 226007, 672959, 1914166, 5280288, 14275838, 38102976, 100888126, 265838881, 698489013, 1832277574, 4802042229, 12578921258, 32941567397, 86254888591, 225835057708, 591265802288, 1547982265500, 4052706300752 ]	[ "nonn", "easy" ]
A098323	[ 0, 1, 3, 9, 2, 33, 27, 82, 48, 162, 279, 1140, 5727, 20729, 717726, 430977, 1112328 ]	[ "more", "nonn", "base" ]
A133548	[ 27, 152, 495, 1826, 4023, 8936, 15795, 27962, 52351, 82142, 132795, 201716, 281223, 385046, 533923, 739302, 966283, 1267046, 1624957, 2013974, 2507013, 3078800, 3783769, 4696442, 5726743, 6819470, 8044513, 9339542, 10782439, 12830822, 15078913, 17650266 ...	[ "nonn", "easy" ]
A110188	[ 8, 18, 27, 30, 42, 50, 66, 70, 78, 98, 102, 105, 110, 114, 125, 130, 138, 154, 170, 174, 182, 186, 190, 195, 222, 230, 231, 238, 242, 246, 255, 258, 266, 282, 285, 286, 290, 310, 318, 322, 338, 343, 354, 357, 366, 370, 374, ...	[ "easy", "nonn" ]
A365156	[ 1, 3, 27, 295, 3648, 48513, 677450, 9797031, 145458252, 2204380144, 33960095667, 530268482913, 8373331428836, 133484219528982, 2145376940485452, 34725549386905864, 565567039020594500, 9261756210015412000, 152410211630410140000 ]	[ "nonn" ]
A009494	[ 1, 3, 17, 203, 5473, 254067, 16540721, 1419027899, 156472224961, 21673957780323, 3688273509233489, 756324514461534200, 183915828663739420000, 5.232605751285116e+22, 1.7220068908254194e+25, 6.490500645147038e+27, 2.777808923824765e+30 ]	[ "nonn" ]
A374158	[ 0, 4, 91, 28, 196, 31213, 364, 9604, 53599, 2548, 470596 ]	[ "nonn", "more" ]
A258896	[ 2, 37, 101, 197, 677, 5477, 8837, 17957, 21317, 42437, 98597, 106277, 148997, 217157, 401957, 454277, 1196837, 1378277, 1674437, 1705637, 1833317, 1865957, 2390117, 2735717, 3118757, 3147077, 3587237, 3865157, 4104677, 4519877, 4726277, 5410277, 672883...	[ "nonn" ]
A280416	[ 1, 3, 1, 7, 17, 39, 65, 199, 65, 455, 1025, 2055, 4097, 8199, 16385, 32775, 65537, 131079, 262145, 524295, 1048577, 2097159, 4194305, 8388615, 16777217, 33554439, 67108865, 134217735, 268435457, 805306375, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, ...	[ "nonn", "easy" ]
A073711	[ 1, 1, 1, 2, 1, 3, 2, 6, 1, 7, 3, 12, 2, 16, 6, 26, 1, 31, 7, 42, 3, 59, 12, 72, 2, 104, 16, 116, 6, 184, 26, 186, 1, 303, 31, 282, 7, 497, 42, 406, 3, 783, 59, 612, 12, 1224, 72, 840, 2, 1856, 104, 1232, 16, 27...	[ "easy", "nice", "nonn" ]
A370054	[ 1, 2, 14, 180, 3432, 87360, 2790720, 107442720, 4845456000, 250637587200, 14631376032000, 951675588864000, 68257101465907200, 5352223511771136000, 455529588681155800000, 4.182422876721741e+22, 4.1206929989690564e+24, 4.336538822724578e+26 ]	[ "nonn", "easy", "changed" ]
A373139	[ 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0...	[ "nonn" ]
A227622	[ 31, 43, 127, 223, 283, 811, 1051, 1471, 1627, 2143, 2731, 3163, 3391, 4651, 5503, 6427, 8863, 9631, 16411, 16927, 18523, 23131, 23743, 27583, 28927, 29611, 33151, 37663, 42463, 43291, 44971, 45823, 56671, 65563, 70783, 78427, 80683, 84127, ...	[ "nonn", "easy" ]
A099716	[ 1, 1, 3, 18, 170, 2244, 38686, 834594, 21874433, 681399298, 24797467947, 1039645748808, 49632586028650, 2671404673776080, 160726892084432830, 10729582290405548000, 789572236551678900000, 6.368234116816508e+22, 5.600777517339868e+24 ]	[ "nonn" ]
A304501	[ 2, 4, 7, 9, 12, 14, 16, 18, 21, 23, 25, 28, 30, 32, 35, 37, 39, 42, 44, 46, 49, 51, 54, 56, 58, 60, 63, 65, 67, 70, 72, 75, 77, 79, 81, 84, 86, 88, 91, 93, 96, 98, 100, 102, 105, 107, 109, 112, 114, 117, 119, 121, ...	[ "nonn", "easy" ]
A306052	[ 64, 719, 3826, 22446, 321707, 3914486, 36596835, 458669749, 5842600934, 66568698945, 798332516282, 9821492891496, 117262506186344, 1405851087491116, 17027654495622692, 205003745530369540, 2465103157587733000 ]	[ "nonn" ]
A383749	[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 23, 27, 29, 34, 37, 38, 43, 46, 47, 49, 53, 54, 56, 57, 58, 59, 67, 68, 69, 73, 74, 76, 78, 79, 83, 86, 87, 89, 94, 97, 98, 203, 207, 209, 223, 227, 229, 233, 239, 247, 249, 253, 257, 2...	[ "nonn", "base" ]
A202210	[ 1, 3, -9, 60, -360, 2457, -18036, 138429, -1093500, 8833140, -72622224, 605563452, -5108366277, 43512281460, -373690245420, 3232056818511, -28126143258444, 246080268205092, -2163254305208580, 19097478037041840, -169235311045503700, 1504837859547132400 ]	[ "sign" ]
A171747	[ 3, 7, 13, 19, 29, 31, 43, 53, 59, 61, 73, 89, 97, 103, 109, 127, 137, 139, 151, 173, 179, 181, 193, 199, 229, 239, 241, 257, 263, 269, 271, 283, 307, 313, 331, 349, 359, 367, 389, 397, 409, 421, 433, 449, 457, 463, 479, 48...	[ "nonn", "less" ]
A379067	[ 1, 2, 3, 3, 3, 4, 5, 6, 6, 6, 7, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 11, 12, 14, 14, 14, 14, 14, 14, 14, 14, 15, 16, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 22, 22, 24, 24, 24, 24, 29, 29, 29, 29, 29...	[ "nonn" ]
A367112	[ 1, 2, 4, 9, 24, 72, 227, 730, 2384, 7916, 26704, 91280, 315319, 1098710, 3856948, 13628441, 48435808, 173030048, 620965396, 2237681720, 8093572960, 29372735368, 106925552672, 390336084256, 1428620011263, 5241166583502, 19270575881964 ]	[ "nonn", "easy" ]
A157845	[ 1, 1, 10, 11, 101, 111, 1010, 1100, 1110, 10001, 10011, 10110, 11001, 11100, 11111, 100100, 100110, 101001, 101100, 101111, 110100, 110111, 111100, 1000000, 1000001, 1000011, 1000110, 1001001, 1001100, 1001111, 1010100, 1010111, 1011100, 1100000, 1...	[ "base", "easy", "nonn" ]
A074925	[ 2, 6, 28, 42, 72, 162, 174, 220, 222, 234, 246, 252, 296, 344, 380, 390, 486, 510, 584, 594, 638, 646, 674, 702, 720, 816, 828, 882, 942, 948, 990, 1044, 1056, 1146, 1200, 1314, 1422, 1436, 1554, 1566, 1596, 1602, 1632, 1740, 17...	[ "nonn" ]
A112419	[ 127, 347, 2503, 12101, 12107, 12109, 15629, 15641, 15661, 15667, 15679, 16381, 16447, 16759, 16879, 19739, 21943, 27653, 28547, 28559, 29527, 29531, 32771, 32783, 35933, 36457, 39313, 39343, 43691, 45361, 46619, 46633, 46643, 46649, 46663, 46691,...	[ "nonn", "base" ]
A302056	[ 9, 14, 19, 24, 31, 34, 39, 42, 44, 49, 53, 59, 64, 65, 69, 74, 75, 82, 84, 86, 89, 94, 97, 99, 108, 109, 111, 114, 116, 119, 124, 130, 133, 134, 139, 144, 149, 150, 152, 157, 159, 163, 164, 167, 169, 174, 180, 184, 185, ...	[ "nonn" ]
A232821	[ 1, 1, 6, 52, 549, 7075, 109172, 1971026, 40823443, 954730001, 24892154602, 716025676088, 22528094057193, 769646697066375, 28375143175948710, 1122910795732014500, 47478259662185185000, 2.136067435649548e+21, 1.0189159461408339e+23 ]	[ "nonn", "easy" ]
A175986	[ 1, -1, 3, 7, 1295, 3628034278016223 ]	[ "sign" ]
A102486	[ 2, 6, 14, 26, 34, 6, -146, -614, -1726, -3834, -6706, -7654, 2914, 49926, 185134, 490906, 1037954, 1697286, 1599374, -2088934, -16352606, -54965754, -138099986, -277571174, -419784766, -291283194, 933791054, 5191580186, 16097365474, 38431560966, 7323941649...	[ "sign", "easy" ]
A346022	[ 13, 31, 337, 701, 761, 937, 983, 1151, 1279, 1831, 1933, 3191, 3803, 3851, 3911, 7043, 7219, 7457, 7523, 7643, 9127, 9161, 9241, 9437, 9521, 9547, 9601, 9871, 9931, 10007, 10151, 10247, 10487, 10639, 10853, 10889, 11071, 11657, 11833, 120...	[ "nonn", "base" ]
A323429	[ 1, 1, 3, 5, 10, 14, 26, 35, 58, 81, 124, 169, 257, 345, 501, 684, 968, 1304, 1830, 2452, 3387, 4541, 6188, 8257, 11193, 14865, 19968, 26481, 35341, 46674, 62007, 81611, 107860, 141602, 186292, 243800, 319610, 416984, 544601, 708690, 922...	[ "nonn" ]
A213481	[ 1, 7, 25, 59, 117, 202, 323, 482, 689, 945, 1261, 1637, 2085, 2604, 3207, 3892, 4673, 5547, 6529, 7615, 8821, 10142, 11595, 13174, 14897, 16757, 18773, 20937, 23269, 25760, 28431, 31272, 34305, 37519, 40937, 44547, 48373, 52402, 56659 ]	[ "nonn", "easy" ]
A008805	[ 1, 1, 3, 3, 6, 6, 10, 10, 15, 15, 21, 21, 28, 28, 36, 36, 45, 45, 55, 55, 66, 66, 78, 78, 91, 91, 105, 105, 120, 120, 136, 136, 153, 153, 171, 171, 190, 190, 210, 210, 231, 231, 253, 253, 276, 276, 300, 300, 325, 325, ...	[ "nonn", "easy" ]
A000899	[ 0, 0, 0, 1, 9, 70, 571, 4820, 44676, 450824, 4980274, 59834748, 778230060, 10896609768, 163456629604, 2615335902176, 44460874280032, 800296440705472, 15205636325496568, 304112744618157900, 6386367741011250000 ]	[ "nonn", "nice", "easy" ]
A100149	[ 1, 24, 106, 284, 595, 1076, 1764, 2696, 3909, 5440, 7326, 9604, 12311, 15484, 19160, 23376, 28169, 33576, 39634, 46380, 53851, 62084, 71116, 80984, 91725, 103376, 115974, 129556, 144159, 159820, 176576, 194464, 213521, 233784, 255290, 278076, 3...	[ "nonn", "easy" ]
A200663	[ 4, 10, 26, 69, 175, 432, 1076, 2671, 6627, 16421, 40695, 100886, 250093, 619947, 1536810, 3809790, 9444489, 23412999, 58041252, 143885484, 356695266, 884255363, 2192088651, 5434237397, 13471597487, 33396394603, 82790419927, 205239329905 ]	[ "nonn" ]
A225630	[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 1, 4, 6, 2, 1, 1, 1, 6, 12, 6, 2, 1, 1, 1, 6, 30, 12, 6, 2, 1, 1, 1, 12, 30, 60, 12, 6, 2, 1, 1, 1, 15, 84, 60, 60, 12, 6, 2, 1, 1, 1, 20, 120, 420, 60, ...	[ "nonn", "tabl" ]
A182969	[ 1, 1, 4, 23, 159, 1236, 10454, 94401, 899286, 8964253, 92961432, 998600238, 11075132605, 126489183013, 1484601117235, 17876874457054, 220546820252773, 2784446513061287, 35940592329823310, 473893641259375170 ]	[ "nonn" ]
A028443	[ 1, 8, 49, 288, 841, 9800 ]	[ "dead" ]
A041167	[ 1, 1, 2, 3, 14, 87, 362, 449, 811, 1260, 23491, 24751, 48242, 72993, 340214, 2114277, 8797322, 10911599, 19708921, 30620520, 570878281, 601498801, 1172377082, 1773875883, 8267880614, 51381159567, 213792518882, 265173678449, 478966197331, 744139875780 ]	[ "nonn", "frac", "easy" ]
A190138	[ 1, 2, 3, 5, 9, 15, 27, 46, 80, 138, 238, 413, 713, 1235, 2136, 3695, 6393, 11057, 19130, 33091, 57246, 99032, 171315, 296365, 512682, 886902, 1534266, 2654154, 4591475, 7942870, 13740526, 23769981, 41120131, 71134474, 123056829, 212878289, 3682...	[ "nonn" ]
A330388	[ 1, 0, 7, -37, 338, -2816, 28418, -340334, 5015080, -84244704, 1536606168, -29753884392, 609895549872, -13243687082016, 305507366834832, -7523621131117296, 198844500026698750, -5649686902983730000, 171839087043420260000, -5.54529230034559e+21 ]	[ "sign" ]
A367174	[ 1, 2, 5, 13, 34, 89, 316, 830, 2179, 7781 ]	[ "nonn", "more" ]
A256717	[ 1, 0, 6, 5, 0, 4, 4, 5, 3, 8, 5, 3, 0, 9, 5, 5, 7, 1, 7, 1, 5, 9, 7, 1, 7, 5, 8, 3, 6, 9, 4, 9, 7, 7, 1, 4, 1, 9, 3, 7, 3, 4, 9, 0, 7, 3, 2, 6, 9, 7, 6, 1, 8, 9, 2, 2, 2, 1, 3, 9, 9, 3, 1, 5...	[ "nonn", "cons", "easy" ]
A142394	[ 43, 137, 419, 607, 701, 983, 1171, 1453, 2017, 2111, 2393, 2957, 3709, 3803, 4273, 4649, 4931, 5119, 5683, 6247, 6529, 7187, 8221, 8597, 9067, 9161, 9349, 9631, 10007, 10289, 10477, 10853, 11699, 11887, 11981, 12263, 12451, 13109, 13297, ...	[ "nonn", "easy" ]
A070427	[ 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 4...	[ "nonn", "easy" ]
A060026	[ 1, 0, 1, 1, 2, 2, 4, 3, 5, 5, 7, 6, 9, 6, 8, 5, 5, -1, -2, -13, -18, -33, -45, -68, -86, -121, -151, -198, -244, -310, -373, -464, -553, -671, -793, -948, -1107, -1309, -1517, -1771, -2039, -2360, -2696, -3098, -3519, -4011, ...	[ "sign", "easy" ]
A148312	[ 1, 1, 2, 5, 14, 37, 116, 370, 1183, 3971, 13628, 46960, 166220, 595358, 2147833, 7868630, 29023310, 107874868, 404840947, 1527363806, 5798828595, 22158950502, 85027989852, 328009874266, 1271293331349, 4944948761677, 19315800358973, 75715549901760, 297726066687...	[ "nonn", "walk" ]
A274814	[ 2503092614937444400, 23558004745831450000, 34092301537081557000, 39615852614588040000, 40936630136879450000, 74890469244315630000, 87526152813173280000, 97270719381369780000 ]	[ "nonn" ]
A021860	[ 0, 0, 1, 1, 6, 8, 2, 2, 4, 2, 9, 9, 0, 6, 5, 4, 2, 0, 5, 6, 0, 7, 4, 7, 6, 6, 3, 5, 5, 1, 4, 0, 1, 8, 6, 9, 1, 5, 8, 8, 7, 8, 5, 0, 4, 6, 7, 2, 8, 9, 7, 1, 9, 6, 2, 6, 1, 6, 8, 2, 2, 4, 2, 9...	[ "nonn", "cons" ]
A195922	[ 3, 10, 6, 48, 16, 51, 114, 30, 16, 32, 208, 39, 48, 155, 330, 45, 480, 96, 315, 658, 126, 77, 33, 135, 160, 531, 66, 198, 117, 176, 240, 115, 286, 165, 55, 65, 95, 287, 290, 390, 221, 144, 80, 448, 510, 285, 80, 105, 495...	[ "nonn" ]
A021466	[ 0, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1...	[ "nonn", "cons" ]
A238644	[ 0, 0, 0, 0, 1, 2, 3, 6, 11, 19, 34, 62, 112, 202, 365, 659, 1189, 2146, 3874, 6993, 12623, 22786, 41131, 74245, 134019, 241917, 436683, 788254, 1422873, 2568420, 4636240, 8368850, 15106563, 27268770, 49222700, 88851613, 160385536, 289511009, ...	[ "nonn" ]
A206781	[ 12, 144, 1020, 6752, 39276, 219061, 1165366, 6052170, 30750128, 154046108, 762592234, 3742458919, 18234837346, 88348314182, 426051182458, 2046737779538, 9800851550334, 46804771654291, 223004711416620, 1060425465768772 ]	[ "nonn" ]

A138595

[ 11, 12, 13, 14, 15, 16, 17, 21, 22, 31, 55, 205, 217, 255 ]

[ "nonn", "easy" ]

A141190

[ 2, 11, 43, 67, 107, 113, 137, 163, 179, 193, 211, 233, 281, 331, 337, 347, 379, 401, 443, 449, 457, 491, 499, 547, 569, 571, 617, 641, 659, 673, 683, 739, 809, 827, 883, 907, 947, 953, 977, 1009, 1019, 1033, 1051, 1129, 1163, ...

[ "nonn" ]

A080267

[ 1, 5, 13, 41, 81, 257, 449, 1313, 2497, 6465, 11265, 33665, 53249, 143617, 269313, 672257, 1114113, 3159041, 4980737, 13568001, 23904257, 57675777, 96468993, 275980289, 424673281, 1090535425, 1963720705, 4823482369, 7784628225 ]

[ "nonn" ]

A294704

[ 1, -1, -16, -713, -64711, -9688521, -2165724176, -675843638952, -280752881225790, -149800127712465760, -99844730464906330000, -8.130008226451579e+22, -7.941371030721482e+25, -9.165244569624527e+28 ]

[ "sign" ]

A112298

[ 1, -3, 1, 3, 0, -3, 2, -3, 1, 0, 0, 3, 2, -6, 0, 3, 0, -3, 2, 0, 2, 0, 0, -3, 1, -6, 1, 6, 0, 0, 2, -3, 0, 0, 0, 3, 2, -6, 2, 0, 0, -6, 2, 0, 0, 0, 0, 3, 3, -3, 0, 6, 0, -3, 0, -6, 2, 0, 0, 0, 2, ...

[ "sign", "mult" ]

A331490

[ 8, 16, 28, 32, 56, 64, 76, 98, 112, 128, 152, 172, 196, 212, 224, 256, 266, 304, 343, 344, 392, 424, 428, 448, 512, 524, 532, 602, 608, 652, 686, 688, 722, 742, 784, 848, 856, 896, 908, 931, 1024, 1048, 1052, 1064, 1204, 1216,...

[ "nonn" ]

A105364

[ 2, 1, 4, 6, 3, 5, 8, 10, 7, 12, 9, 11, 14, 16, 13, 18, 15, 20, 22, 17, 24, 26, 19, 21, 23, 28, 30, 25, 27, 32, 34, 29, 36, 31, 38, 33, 40, 42, 35, 44, 37, 46, 39, 41, 48, 50, 52, 54, 43, 45, 56, 47, 58, 49, 6...

[ "nonn" ]

A035339

[ 8, 29, 42, 63, 84, 97, 118, 131, 152, 173, 186, 207, 228, 241, 262, 275, 296, 317, 330, 351, 364, 385, 406, 419, 440, 461, 474, 495, 508, 529, 550, 563, 584, 605, 618, 639, 652, 673, 694, 707, 728, 741, 762, 783, 796, 817, 8...

[ "nonn" ]

A364868

[ 1, 2, 3, 4, 7, 9, 10, 12, 13, 15, 18, 22, 24, 25, 27, 28, 30, 34, 37, 39, 43, 45, 48, 49, 57, 58, 60, 64, 67, 69, 70, 73, 78, 79, 84, 87, 88, 90, 93, 97, 99, 100, 102, 105, 108, 112, 114, 115, 127, 130, 132, 135, ...

[ "nonn", "easy" ]

A362483

[ 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 10, 1, 1, 1, 4, 19, 70, 1, 1, 1, 5, 28, 169, 646, 1, 1, 1, 6, 37, 298, 2041, 7576, 1, 1, 1, 7, 46, 457, 4186, 30811, 106744, 1, 1, 1, 8, 55, 646, 7081, 74116, 560827, 1761...

[ "nonn", "tabl" ]

A032164

[ 1, 6, 15, 70, 315, 1554, 7735, 39990, 209790, 1119720, 6045837, 32981550, 181394535, 1004668770, 5597420295, 31345665106, 176319264240, 995685849690, 5642219252460, 32071565263710, 182807918979777 ]

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

A339959

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

[ "nonn" ]

A024548

[ 1, 2, 5, 1, 1, 2, 8, 1, 1, 3, 19, 1, 1, 4, 1, 1, 2, 5, 1, 1, 2, 9, 1, 1, 3, 30, 1, 2, 4, 1, 1, 2, 6, 1, 1, 2, 11, 1, 1, 3, 71, 1, 2, 4, 1, 1, 2, 7, 1, 1, 2, 15, 1, 1, 3, 1, 1, 2, 5, 1, 1, 2, 8...

[ "nonn" ]

A001986

[ 19, 43, 43, 67, 67, 163, 163, 163, 163, 163, 163, 222643, 1333963, 1333963, 2404147, 2404147, 20950603, 51599563, 51599563, 96295483, 96295483, 146161723, 1408126003, 3341091163, 3341091163, 3341091163, 52947440683, 52947440683, 52947440683, 193310265163 ]

[ "nonn" ]

A052000

[ 0, 1, 5, 433494437, 4807526976, 53316291173 ]

[ "nonn", "base" ]

A283488

[ 0, 0, 2, 12, 64, 312, 1460, 6624, 29394, 128264, 552384, 2353888, 9943896, 41703328, 173822258, 720671156, 2974187392, 12224902712, 50069348140, 204417445696, 832198630882, 3379257614032, 13690075484800, 55344113101440 ]

[ "nonn" ]

A320517

[ 3, 97, 241, 337, 577, 1249, 3361, 3697, 4801, 6961, 8191, 10657, 14449, 16561, 18049, 23761, 25537, 31249, 32257, 37537, 48049, 49297, 64081, 65521, 77617, 79201, 89041, 120049, 126001, 138337, 140449, 153457, 171697, 174049, 181201, 193441, 20...

[ "nonn" ]

A317256

[ 1, 1, 2, 3, 5, 6, 11, 13, 19, 25, 35, 42, 61, 74, 98, 122, 161, 194, 254, 304, 388, 472, 589, 700, 878, 1044, 1278, 1525, 1851, 2182, 2651, 3113, 3735, 4389, 5231, 6106, 7278, 8464, 9995, 11631, 13680, 15831, 18602, 21463, 25068...

[ "nonn" ]

A201460

[ 1, 15, 1, 19, 51, 1, 49, 1, 1, 15, 51, 9, 21, 211, 79, 21, 7, 31, 129, 105, 87, 21, 21, 13, 7, 109, 57, 55, 159, 75, 231, 73, 33, 19, 57, 75, 3, 49, 207, 93, 463, 15, 141, 421, 151, 177, 237, 1, 99, 49, 129, 211, ...

[ "nonn" ]

A143215

[ 4, 15, 50, 119, 308, 533, 986, 1463, 2300, 3741, 4960, 7289, 9758, 12083, 15416, 20193, 25960, 30561, 38056, 45369, 51976, 62489, 72542, 85707, 102820, 117261, 130192, 146697, 161320, 180009, 218440, 242481, 272356, 295653, 339124, 366477 ]

[ "nonn" ]

A167718

[ 1, 49, 121, 169, 361, 529, 1849, 2401, 3721, 6241, 8281, 9409, 11881, 14161, 14641, 19321, 20449, 25921, 27889, 39601, 49729, 51529, 52441, 69169, 76729, 83521, 89401, 94249, 104329, 113569, 124609, 143641, 165649, 175561, 187489, 190969 ]

[ "base", "nonn" ]

A353408

[ 2, 7, 3, 11, 23, 59, 47, 71, 107, 167, 131, 83, 179, 347, 191, 263, 239, 227, 251, 311, 383, 419, 359, 443, 479, 503, 431, 467, 491, 647, 587, 599, 683, 719, 563, 743, 659, 827, 887, 839, 983, 911, 863, 1019, 947, 1091, 971,...

[ "nonn" ]

A318130

[ 2, 3, 11, 219, 64595, 4294642035, 18446744047940727000, 3.402823669209385e+38, 1.157920892373162e+77 ]

[ "nonn" ]

A379823

[ 1, 1, 4, 17, 76, 352, 1667, 8017, 38992, 191276, 944648, 4690688, 23396023, 117130483, 588267604, 2962532945, 14954741680, 75647585152, 383359922324, 1945925312492, 9891894347360, 50350481125000, 256592858798416, 1309047896676352, 6684914267741951, 34168808617063930...

[ "nonn" ]

A347976

[ 1, 2, 4, 3, 8, 11, 4, 13, 22, 26, 5, 19, 38, 52, 57, 6, 26, 60, 94, 114, 120, 7, 34, 89, 158, 213, 240, 247, 8, 43, 126, 251, 376, 459, 494, 502, 9, 53, 172, 381, 632, 841, 960, 1004, 1013, 10, 64, 228, 557, 1018, 14...

[ "nonn", "tabl" ]

A041240

[ 11, 23, 517, 1057, 23771, 48599, 1092949, 2234497, 50251883, 102738263, 2310493669, 4723725601, 106232456891, 217188639383, 4884382523317, 9985953686017, 224575363615691, 459136680917399, 10325582343798468, 21110301368514336, 474752212451113860 ]

[ "nonn", "cofr", "frac", "easy" ]

A203673

[ 1, 21, 254163, 11213968422384, 6.45145000511735e+24, 1.2785799326363207e+41, 1.9119977388653487e+62 ]

[ "nonn" ]

A240259

[ 90, 1814, 45436, 1378558, 43503375, 1386865953, 44332944831, 1418479860917, 45399588682689, 1453222251668706, 46519367131258040, 1489173716085668000, 47671799079217180000, 1.5260893996302624e+21 ]

[ "nonn" ]

A347256

[ 1, 1, 2, 1, 2, 1, 2, 4, 1, 2, 1, 2, 3, 6, 1, 2, 4, 1, 2, 3, 6, 1, 2, 4, 1, 2, 5, 10, 1, 2, 4, 1, 2, 3, 4, 6, 12, 1, 2, 3, 6, 1, 2, 4, 1, 2, 4, 8, 1, 2, 4, 8, 16, 1, 2, 3, 6, 1, 2, 3, 6, 9, 18,...

[ "nonn", "tabf" ]

A335632

[ 1, 2, 3, 8, 11, 25, 37, 97, 142, 316, 463, 1150, 1747, 4298, 6599, 16641, 25800, 65025, 101027, 256245, 399972, 1017939, 1589375, 4048559, 6328766, 16148228, 25252615, 53243252 ]

[ "nonn", "more" ]

A256065

[ 2, 8, 46692, 58896, 59949, 186633, 186673, 949968, 1587616, 2989584, 58988961, 245878784, 914457625, 2439577764, 2754991369, 4161798288, 4161798468, 4629457984, 4897936656, 29859851664, 34828536976, 41664977536, 59998484736, 96745892625, 134994579556 ]

[ "nonn", "base" ]

A149649

[ 1, 1, 5, 15, 71, 265, 1261, 5203, 24955, 108585, 524197, 2355797, 11426453, 52469187, 255398251, 1190735689, 5812102729, 27403169351, 134056152587, 637477945257, 3124256823521, 14956369411357, 73413193456245, 353320748164941, 1736537145782025, 8393821968261463, 41...

[ "nonn", "walk" ]

A277931

[ 1, 11, 100, 1110, 10000, 111000, 1000100, 11101110, 100000000, 1110000000, 10001000000, 111011100000, 1000000010000, 11100000111000, 100010001000100, 1110111011101110, 10000000000000000, 111000000000000000, 1000100000000000000, 11101110000000000000 ]

[ "nonn", "easy" ]

A170799

[ 0, 1, 66048, 64599606, 8590458880, 381474609375, 8463359955456, 116315398231228, 1125900443713536, 8338592593225485, 50000005000000000, 252723527218359200, 1109305584328900600, 4325208028619915000, 15245673509292925000, 49263062956171880000, 147573953139432230000 ]

[ "nonn", "easy" ]

A365557

[ 1, 5, 60, 1105, 27505, 862900, 32665935, 1448431605, 73618245530, 4219213176975, 269178309769385, 18919087590749230, 1452439246800583700, 120926788470961900000, 1.085250578407319e+22, 1.0443496659689974e+24, 1.072735337238393e+26 ]

[ "nonn" ]

A340708

[ 1, 2, 3, 5, 8, 13, 24, 40, 69, 130, 231, 408, 689, 1272, 2153, 3960, 6993, 12560 ]

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

A269893

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

[ "nonn", "cons" ]

A020423

[ 1831, 1999, 2149, 2791, 3292, 4126, 4237, 4393, 4639, 4897, 5121, 5279, 5534, 5971, 5996, 6621, 6729, 7209, 7214, 7661, 7737, 8014, 8129, 8251, 8361, 8457, 8577, 8674, 8812, 8817, 8947, 9356, 9376, 9469, 9541, 9753, 10063, 10113, 10487, 1...

[ "nonn" ]

A069830

[ 2, 2, 3, 8, 6, 4, 9, 17, 24, 15, 6, 10, 21, 35, 44, 49, 30, 11, 53, 36, 13, 62, 74, 12, 25, 51, 80, 54, 28, 9, 98, 114, 69, 134, 75, 26, 27, 125, 144, 149, 90, 19, 96, 49, 99, 123, 130, 170, 114, 58, 199, 120, 25...

[ "nonn" ]

A319625

[ 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 3 ]

[ "nonn", "more" ]

A331543

[ 0, 1, 100, 121, 10000, 10201, 12100, 12321, 22201, 123201, 130321, 1000000, 1002001, 1020100, 1022121, 1210000, 1212201, 1232100, 1320201, 2220100, 3101121, 12320100, 13032100, 100000000, 100020001, 100200100, 100220121, 102010000, 102030201, 102212100, 10...

[ "nonn", "base" ]

A146901

[ 1, 1, 1, 3, 9, 19, 49, 345, 3029, 26343, 253497, 4034589, 91237121, 2505865849, 83922611151, 3827327413577, 239094333954443, 19417775019886244 ]

[ "nonn" ]

A256022

[ 33, 68, 154, 352, 798, 1804, 4086, 9304, 21194, 48176, 109506, 249120, 566754, 1289056, 2931842, 6668688, 15168650, 34502104, 78476674, 178499728, 406009530, 923494792, 2100545026, 4777818256, 10867446266, 24718685528, 56224184050 ]

[ "nonn" ]

A057037

[ 1, 1, 2, 4, 2, 5, 3, 1, 5, 3, 1, 6, 4, 2, 8, 6, 4, 2, 9, 7, 5, 3, 1, 9, 7, 5, 3, 1, 10, 8, 6, 4, 2, 12, 10, 8, 6, 4, 2, 13, 11, 9, 7, 5, 3, 1, 13, 11, 9, 7, 5, 3, 1, 14, 12, 10, 8, 6, 4, 2, 16, ...

[ "nonn" ]

A249775

[ 3, 0, 11, 19, 17, 79, 23, 151, 67, 53, 37, 107, 47, 131, 67, 71, 83, 0, 79, 137, 293, 131, 89, 101, 109, 113, 283, 149, 12923, 149, 317, 181, 1193, 157, 163, 157, 163, 193, 173, 18041, 307, 269, 227, 0, 2897, 211, 257, 331...

[ "nonn", "base" ]

A277765

[ 0, 356, 21141, 7824415, 1487830718, 343944986355, 74591651561541, 16513537201433122, 3631417278822016000, 800314315609344700000, 1.7625254261632642e+23, 3.882500200269685e+25 ]

[ "nonn" ]

A065455

[ 1, 2, 4, 7, 14, 25, 49, 89, 172, 316, 605, 1120, 2131, 3965, 7513, 14026, 26504, 49591, 93538, 175277, 330205, 619369, 1165892, 2188312, 4117045, 7730828, 14539447, 27309529, 51349169, 96468034, 181357036, 340753271, 640539142, 1203616849 ]

[ "nonn", "easy" ]

A027951

[ 1, 8, 129, 967, 4950, 20175, 70954, 226007, 672959, 1914166, 5280288, 14275838, 38102976, 100888126, 265838881, 698489013, 1832277574, 4802042229, 12578921258, 32941567397, 86254888591, 225835057708, 591265802288, 1547982265500, 4052706300752 ]

[ "nonn", "easy" ]

A098323

[ 0, 1, 3, 9, 2, 33, 27, 82, 48, 162, 279, 1140, 5727, 20729, 717726, 430977, 1112328 ]

[ "more", "nonn", "base" ]

A133548

[ 27, 152, 495, 1826, 4023, 8936, 15795, 27962, 52351, 82142, 132795, 201716, 281223, 385046, 533923, 739302, 966283, 1267046, 1624957, 2013974, 2507013, 3078800, 3783769, 4696442, 5726743, 6819470, 8044513, 9339542, 10782439, 12830822, 15078913, 17650266 ...

[ "nonn", "easy" ]

A110188

[ 8, 18, 27, 30, 42, 50, 66, 70, 78, 98, 102, 105, 110, 114, 125, 130, 138, 154, 170, 174, 182, 186, 190, 195, 222, 230, 231, 238, 242, 246, 255, 258, 266, 282, 285, 286, 290, 310, 318, 322, 338, 343, 354, 357, 366, 370, 374, ...

[ "easy", "nonn" ]

A365156

[ 1, 3, 27, 295, 3648, 48513, 677450, 9797031, 145458252, 2204380144, 33960095667, 530268482913, 8373331428836, 133484219528982, 2145376940485452, 34725549386905864, 565567039020594500, 9261756210015412000, 152410211630410140000 ]

[ "nonn" ]

A009494

[ 1, 3, 17, 203, 5473, 254067, 16540721, 1419027899, 156472224961, 21673957780323, 3688273509233489, 756324514461534200, 183915828663739420000, 5.232605751285116e+22, 1.7220068908254194e+25, 6.490500645147038e+27, 2.777808923824765e+30 ]

[ "nonn" ]

A374158

[ 0, 4, 91, 28, 196, 31213, 364, 9604, 53599, 2548, 470596 ]

[ "nonn", "more" ]

A258896

[ 2, 37, 101, 197, 677, 5477, 8837, 17957, 21317, 42437, 98597, 106277, 148997, 217157, 401957, 454277, 1196837, 1378277, 1674437, 1705637, 1833317, 1865957, 2390117, 2735717, 3118757, 3147077, 3587237, 3865157, 4104677, 4519877, 4726277, 5410277, 672883...

[ "nonn" ]

A280416

[ 1, 3, 1, 7, 17, 39, 65, 199, 65, 455, 1025, 2055, 4097, 8199, 16385, 32775, 65537, 131079, 262145, 524295, 1048577, 2097159, 4194305, 8388615, 16777217, 33554439, 67108865, 134217735, 268435457, 805306375, 1, 7, 1, 7, 1, 7, 1, 7, 1, 7, ...

[ "nonn", "easy" ]

A073711

[ 1, 1, 1, 2, 1, 3, 2, 6, 1, 7, 3, 12, 2, 16, 6, 26, 1, 31, 7, 42, 3, 59, 12, 72, 2, 104, 16, 116, 6, 184, 26, 186, 1, 303, 31, 282, 7, 497, 42, 406, 3, 783, 59, 612, 12, 1224, 72, 840, 2, 1856, 104, 1232, 16, 27...

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

A370054

[ 1, 2, 14, 180, 3432, 87360, 2790720, 107442720, 4845456000, 250637587200, 14631376032000, 951675588864000, 68257101465907200, 5352223511771136000, 455529588681155800000, 4.182422876721741e+22, 4.1206929989690564e+24, 4.336538822724578e+26 ]

[ "nonn", "easy", "changed" ]

A373139

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

[ "nonn" ]

A227622

[ 31, 43, 127, 223, 283, 811, 1051, 1471, 1627, 2143, 2731, 3163, 3391, 4651, 5503, 6427, 8863, 9631, 16411, 16927, 18523, 23131, 23743, 27583, 28927, 29611, 33151, 37663, 42463, 43291, 44971, 45823, 56671, 65563, 70783, 78427, 80683, 84127, ...

[ "nonn", "easy" ]

A099716

[ 1, 1, 3, 18, 170, 2244, 38686, 834594, 21874433, 681399298, 24797467947, 1039645748808, 49632586028650, 2671404673776080, 160726892084432830, 10729582290405548000, 789572236551678900000, 6.368234116816508e+22, 5.600777517339868e+24 ]

[ "nonn" ]

A304501

[ 2, 4, 7, 9, 12, 14, 16, 18, 21, 23, 25, 28, 30, 32, 35, 37, 39, 42, 44, 46, 49, 51, 54, 56, 58, 60, 63, 65, 67, 70, 72, 75, 77, 79, 81, 84, 86, 88, 91, 93, 96, 98, 100, 102, 105, 107, 109, 112, 114, 117, 119, 121, ...

[ "nonn", "easy" ]

A306052

[ 64, 719, 3826, 22446, 321707, 3914486, 36596835, 458669749, 5842600934, 66568698945, 798332516282, 9821492891496, 117262506186344, 1405851087491116, 17027654495622692, 205003745530369540, 2465103157587733000 ]

[ "nonn" ]

A383749

[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 23, 27, 29, 34, 37, 38, 43, 46, 47, 49, 53, 54, 56, 57, 58, 59, 67, 68, 69, 73, 74, 76, 78, 79, 83, 86, 87, 89, 94, 97, 98, 203, 207, 209, 223, 227, 229, 233, 239, 247, 249, 253, 257, 2...

[ "nonn", "base" ]

A202210

[ 1, 3, -9, 60, -360, 2457, -18036, 138429, -1093500, 8833140, -72622224, 605563452, -5108366277, 43512281460, -373690245420, 3232056818511, -28126143258444, 246080268205092, -2163254305208580, 19097478037041840, -169235311045503700, 1504837859547132400 ]

[ "sign" ]

A171747

[ 3, 7, 13, 19, 29, 31, 43, 53, 59, 61, 73, 89, 97, 103, 109, 127, 137, 139, 151, 173, 179, 181, 193, 199, 229, 239, 241, 257, 263, 269, 271, 283, 307, 313, 331, 349, 359, 367, 389, 397, 409, 421, 433, 449, 457, 463, 479, 48...

[ "nonn", "less" ]

A379067

[ 1, 2, 3, 3, 3, 4, 5, 6, 6, 6, 7, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 11, 12, 14, 14, 14, 14, 14, 14, 14, 14, 15, 16, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 22, 22, 24, 24, 24, 24, 29, 29, 29, 29, 29...

[ "nonn" ]

A367112

[ 1, 2, 4, 9, 24, 72, 227, 730, 2384, 7916, 26704, 91280, 315319, 1098710, 3856948, 13628441, 48435808, 173030048, 620965396, 2237681720, 8093572960, 29372735368, 106925552672, 390336084256, 1428620011263, 5241166583502, 19270575881964 ]

[ "nonn", "easy" ]

A157845

[ 1, 1, 10, 11, 101, 111, 1010, 1100, 1110, 10001, 10011, 10110, 11001, 11100, 11111, 100100, 100110, 101001, 101100, 101111, 110100, 110111, 111100, 1000000, 1000001, 1000011, 1000110, 1001001, 1001100, 1001111, 1010100, 1010111, 1011100, 1100000, 1...

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

A074925

[ 2, 6, 28, 42, 72, 162, 174, 220, 222, 234, 246, 252, 296, 344, 380, 390, 486, 510, 584, 594, 638, 646, 674, 702, 720, 816, 828, 882, 942, 948, 990, 1044, 1056, 1146, 1200, 1314, 1422, 1436, 1554, 1566, 1596, 1602, 1632, 1740, 17...

[ "nonn" ]

A112419

[ 127, 347, 2503, 12101, 12107, 12109, 15629, 15641, 15661, 15667, 15679, 16381, 16447, 16759, 16879, 19739, 21943, 27653, 28547, 28559, 29527, 29531, 32771, 32783, 35933, 36457, 39313, 39343, 43691, 45361, 46619, 46633, 46643, 46649, 46663, 46691,...

[ "nonn", "base" ]

A302056

[ 9, 14, 19, 24, 31, 34, 39, 42, 44, 49, 53, 59, 64, 65, 69, 74, 75, 82, 84, 86, 89, 94, 97, 99, 108, 109, 111, 114, 116, 119, 124, 130, 133, 134, 139, 144, 149, 150, 152, 157, 159, 163, 164, 167, 169, 174, 180, 184, 185, ...

[ "nonn" ]

A232821

[ 1, 1, 6, 52, 549, 7075, 109172, 1971026, 40823443, 954730001, 24892154602, 716025676088, 22528094057193, 769646697066375, 28375143175948710, 1122910795732014500, 47478259662185185000, 2.136067435649548e+21, 1.0189159461408339e+23 ]

[ "nonn", "easy" ]

A175986

[ 1, -1, 3, 7, 1295, 3628034278016223 ]

[ "sign" ]

A102486

[ 2, 6, 14, 26, 34, 6, -146, -614, -1726, -3834, -6706, -7654, 2914, 49926, 185134, 490906, 1037954, 1697286, 1599374, -2088934, -16352606, -54965754, -138099986, -277571174, -419784766, -291283194, 933791054, 5191580186, 16097365474, 38431560966, 7323941649...

[ "sign", "easy" ]

A346022

[ 13, 31, 337, 701, 761, 937, 983, 1151, 1279, 1831, 1933, 3191, 3803, 3851, 3911, 7043, 7219, 7457, 7523, 7643, 9127, 9161, 9241, 9437, 9521, 9547, 9601, 9871, 9931, 10007, 10151, 10247, 10487, 10639, 10853, 10889, 11071, 11657, 11833, 120...

[ "nonn", "base" ]

A323429

[ 1, 1, 3, 5, 10, 14, 26, 35, 58, 81, 124, 169, 257, 345, 501, 684, 968, 1304, 1830, 2452, 3387, 4541, 6188, 8257, 11193, 14865, 19968, 26481, 35341, 46674, 62007, 81611, 107860, 141602, 186292, 243800, 319610, 416984, 544601, 708690, 922...

[ "nonn" ]

A213481

[ 1, 7, 25, 59, 117, 202, 323, 482, 689, 945, 1261, 1637, 2085, 2604, 3207, 3892, 4673, 5547, 6529, 7615, 8821, 10142, 11595, 13174, 14897, 16757, 18773, 20937, 23269, 25760, 28431, 31272, 34305, 37519, 40937, 44547, 48373, 52402, 56659 ]

[ "nonn", "easy" ]

A008805

[ 1, 1, 3, 3, 6, 6, 10, 10, 15, 15, 21, 21, 28, 28, 36, 36, 45, 45, 55, 55, 66, 66, 78, 78, 91, 91, 105, 105, 120, 120, 136, 136, 153, 153, 171, 171, 190, 190, 210, 210, 231, 231, 253, 253, 276, 276, 300, 300, 325, 325, ...

[ "nonn", "easy" ]

A000899

[ 0, 0, 0, 1, 9, 70, 571, 4820, 44676, 450824, 4980274, 59834748, 778230060, 10896609768, 163456629604, 2615335902176, 44460874280032, 800296440705472, 15205636325496568, 304112744618157900, 6386367741011250000 ]

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

A100149

[ 1, 24, 106, 284, 595, 1076, 1764, 2696, 3909, 5440, 7326, 9604, 12311, 15484, 19160, 23376, 28169, 33576, 39634, 46380, 53851, 62084, 71116, 80984, 91725, 103376, 115974, 129556, 144159, 159820, 176576, 194464, 213521, 233784, 255290, 278076, 3...

[ "nonn", "easy" ]

A200663

[ 4, 10, 26, 69, 175, 432, 1076, 2671, 6627, 16421, 40695, 100886, 250093, 619947, 1536810, 3809790, 9444489, 23412999, 58041252, 143885484, 356695266, 884255363, 2192088651, 5434237397, 13471597487, 33396394603, 82790419927, 205239329905 ]

[ "nonn" ]

A225630

[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 1, 4, 6, 2, 1, 1, 1, 6, 12, 6, 2, 1, 1, 1, 6, 30, 12, 6, 2, 1, 1, 1, 12, 30, 60, 12, 6, 2, 1, 1, 1, 15, 84, 60, 60, 12, 6, 2, 1, 1, 1, 20, 120, 420, 60, ...

[ "nonn", "tabl" ]

A182969

[ 1, 1, 4, 23, 159, 1236, 10454, 94401, 899286, 8964253, 92961432, 998600238, 11075132605, 126489183013, 1484601117235, 17876874457054, 220546820252773, 2784446513061287, 35940592329823310, 473893641259375170 ]

[ "nonn" ]

A028443

[ 1, 8, 49, 288, 841, 9800 ]

[ "dead" ]

A041167

[ 1, 1, 2, 3, 14, 87, 362, 449, 811, 1260, 23491, 24751, 48242, 72993, 340214, 2114277, 8797322, 10911599, 19708921, 30620520, 570878281, 601498801, 1172377082, 1773875883, 8267880614, 51381159567, 213792518882, 265173678449, 478966197331, 744139875780 ]

[ "nonn", "frac", "easy" ]

A190138

[ 1, 2, 3, 5, 9, 15, 27, 46, 80, 138, 238, 413, 713, 1235, 2136, 3695, 6393, 11057, 19130, 33091, 57246, 99032, 171315, 296365, 512682, 886902, 1534266, 2654154, 4591475, 7942870, 13740526, 23769981, 41120131, 71134474, 123056829, 212878289, 3682...

[ "nonn" ]

A330388

[ 1, 0, 7, -37, 338, -2816, 28418, -340334, 5015080, -84244704, 1536606168, -29753884392, 609895549872, -13243687082016, 305507366834832, -7523621131117296, 198844500026698750, -5649686902983730000, 171839087043420260000, -5.54529230034559e+21 ]

[ "sign" ]

A367174

[ 1, 2, 5, 13, 34, 89, 316, 830, 2179, 7781 ]

[ "nonn", "more" ]

A256717

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

[ "nonn", "cons", "easy" ]

A142394

[ 43, 137, 419, 607, 701, 983, 1171, 1453, 2017, 2111, 2393, 2957, 3709, 3803, 4273, 4649, 4931, 5119, 5683, 6247, 6529, 7187, 8221, 8597, 9067, 9161, 9349, 9631, 10007, 10289, 10477, 10853, 11699, 11887, 11981, 12263, 12451, 13109, 13297, ...

[ "nonn", "easy" ]

A070427

[ 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 43, 31, 37, 34, 13, 1, 7, 4, 28, 16, 22, 19, 4...

[ "nonn", "easy" ]

A060026

[ 1, 0, 1, 1, 2, 2, 4, 3, 5, 5, 7, 6, 9, 6, 8, 5, 5, -1, -2, -13, -18, -33, -45, -68, -86, -121, -151, -198, -244, -310, -373, -464, -553, -671, -793, -948, -1107, -1309, -1517, -1771, -2039, -2360, -2696, -3098, -3519, -4011, ...

[ "sign", "easy" ]

A148312

[ 1, 1, 2, 5, 14, 37, 116, 370, 1183, 3971, 13628, 46960, 166220, 595358, 2147833, 7868630, 29023310, 107874868, 404840947, 1527363806, 5798828595, 22158950502, 85027989852, 328009874266, 1271293331349, 4944948761677, 19315800358973, 75715549901760, 297726066687...

[ "nonn", "walk" ]

A274814

[ 2503092614937444400, 23558004745831450000, 34092301537081557000, 39615852614588040000, 40936630136879450000, 74890469244315630000, 87526152813173280000, 97270719381369780000 ]

[ "nonn" ]

A021860

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

[ "nonn", "cons" ]

A195922

[ 3, 10, 6, 48, 16, 51, 114, 30, 16, 32, 208, 39, 48, 155, 330, 45, 480, 96, 315, 658, 126, 77, 33, 135, 160, 531, 66, 198, 117, 176, 240, 115, 286, 165, 55, 65, 95, 287, 290, 390, 221, 144, 80, 448, 510, 285, 80, 105, 495...

[ "nonn" ]

A021466

[ 0, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1, 6, 4, 5, 0, 2, 1...

[ "nonn", "cons" ]

A238644

[ 0, 0, 0, 0, 1, 2, 3, 6, 11, 19, 34, 62, 112, 202, 365, 659, 1189, 2146, 3874, 6993, 12623, 22786, 41131, 74245, 134019, 241917, 436683, 788254, 1422873, 2568420, 4636240, 8368850, 15106563, 27268770, 49222700, 88851613, 160385536, 289511009, ...

[ "nonn" ]

A206781

[ 12, 144, 1020, 6752, 39276, 219061, 1165366, 6052170, 30750128, 154046108, 762592234, 3742458919, 18234837346, 88348314182, 426051182458, 2046737779538, 9800851550334, 46804771654291, 223004711416620, 1060425465768772 ]

[ "nonn" ]