N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A109245	[ 1, 1, 5, 15, 54, 193, 708, 2627, 9846, 37178, 141223, 539047, 2065813, 7943706, 30634329, 118433821, 458867295, 1781267606, 6926405025, 26973935420, 105189301334, 410707352869, 1605379739149, 6281519778025, 24601184635436 ]	[ "easy", "nonn" ]
A255890	[ 1, 1, 2, 3, 1, 2, 3, 3, 3, 2, 3, 4, 2, 2, 4, 4, 2, 3, 4, 4, 3, 3, 5, 4, 2, 3, 5, 5, 3, 3, 5, 6, 3, 3, 5, 6, 3 ]	[ "nonn", "more" ]
A180222	[ 0, 1, 4, 24, 128, 704, 3840, 20992, 114688, 626688, 3424256, 18710528, 102236160, 558628864, 3052404736, 16678649856, 91133837312, 497964548096, 2720928890880, 14867431948288, 81237158920192, 443888091267072, 2425449636429824, 13252903275855872 ]	[ "nonn", "easy" ]
A067344	[ 1, 21, 41, 120, 242, 312, 323, 401, 501, 1040, 1114, 1141, 1204, 1214, 1233, 1241, 1304, 1503, 2033, 2115, 2133, 2140, 2403, 3010, 3014, 3124, 3211, 3304, 3322, 4001, 4012, 4121, 4301, 4310, 5130, 10044, 10214, 10242, 10320, 10324, 1104...	[ "base", "nonn" ]
A000771	[ 1, 28, 462, 5880, 63987, 627396, 5715424, 49329280, 408741333, 3281882604, 25708104786, 197462483400, 1492924634839, 11143554045652, 82310957214948, 602762379967440, 4382641999117305, 31677463851804540, 227832482998716320, 1631853797991016700 ]	[ "nonn", "easy" ]
A252428	[ 1142, 1033, 1810, 3954, 9643, 24024, 59977, 153283, 389066, 994207, 2583468, 6641473, 17166060, 45035698, 116572494, 303313550, 800157489, 2078949610, 5429352825, 14366800297, 37404613287, 97882351085, 259440365356 ]	[ "nonn" ]
A287501	[ 1, 3, 3, 14, 7, 63, 15, 248, 31, 1022, 63, 4071, 119, 16382, 255, 65439, 496, 262143, 984, 1048191, 1916, 4194303, 4094, 16775679, 8191, 67108863, 15420, 268429311, 30334, 1073741823, 65535, 4294942719, 129020, 17179869183, 253950, 68719378431, ...	[ "nonn", "easy" ]
A293929	[ 0, 10, 19, 118, 3187, 3014173, 3003344034004 ]	[ "nonn", "base", "more" ]
A279259	[ 53, 159, 1735, 4508, 3222, 18238, 31499, 16965, 78013, 114722, 54348, 225124, 303425, 133515, 519187, 662408, 277794, 1035370, 1272023, 515697, 1864393, 2228174, 880920, 3112528, 3642317, 1412343, 4901599, 5641460, 2154030, 7368982, 8368163, 3155229, 1...	[ "nonn", "easy" ]
A139793	[ 0, 11, 23, 36, 41, 56, 63, 71, 89, 99, 11, 23, 36, 41 ]	[ "easy", "nonn", "base" ]
A127423	[ 1, 21, 32, 43, 54, 65, 76, 87, 98, 109, 1110, 1211, 1312, 1413, 1514, 1615, 1716, 1817, 1918, 2019, 2120, 2221, 2322, 2423, 2524, 2625, 2726, 2827, 2928, 3029, 3130, 3231, 3332, 3433, 3534, 3635, 3736, 3837, 3938, 4039, 4140, 4241, ...	[ "nonn", "base" ]
A009926	[ 1, 8, 12, 48, 42, 128, 92, 248, 162, 408, 252, 608, 362, 848, 492, 1128, 642, 1448, 812, 1808, 1002, 2208, 1212, 2648, 1442, 3128, 1692, 3648, 1962, 4208, 2252, 4808, 2562, 5448, 2892, 6128, 3242, 6848, 3612, 7608, 4002, 8408, 4412,...	[ "nonn" ]
A237228	[ 268, 984, 3284, 10888, 36180, 120540, 401520, 1336540, 4448892, 14811704, 49313092, 164172108, 546554288, 1819586828, 6057775468, 20167512408, 67141506132, 223527096380, 744165226864, 2477470556540, 8247979825436 ]	[ "nonn" ]
A126248	[ 60, 210, 1716, 5814, 26970, 74046, 215940, 373176, 1061106, 1259604, 2627934, 3374850, 5831820, 7077696, 7762194, 11852124, 13823760, 19682730, 22425486, 30371016, 42143844, 74087580, 80621136, 98610666, 142236126, 185192430 ]	[ "nonn" ]
A076276	[ 0, 0, 1, 3, 7, 13, 24, 39, 64, 98, 150, 219, 322, 455, 645, 892, 1232, 1668, 2259, 3008, 4003, 5260, 6897, 8951, 11599, 14893, 19086, 24284, 30827, 38888, 48959, 61293, 76578, 95223, 118152, 145993, 180037, 221175, 271186, 331402, 40420...	[ "nonn" ]
A358644	[ 1, 9, 6, 1, 9, 6, 9, 3, 7, 5, 1, 7, 2, 9, 3, 9, 8, 2, 1, 1, 2, 8, 5, 3, 0, 3, 4, 4, 8, 7, 4, 3, 0, 5, 9, 2, 5, 2, 2, 4, 0, 4, 0, 1, 8, 1, 2, 5, 8, 3, 1, 2, 1, 0, 4, 7, 3, 0, 5, 0, 5, 3, 1, 4...	[ "nonn", "cons" ]
A150472	[ 1, 2, 7, 25, 99, 403, 1719, 7451, 33116, 148742, 678430, 3117059, 14468349, 67515160, 317323787, 1497442597, 7103751478, 33805337279, 161517974750, 773643738505, 3717199351855, 17896679846060, 86379015071009, 417611710091614, 2023077824973609, 9814381630455424, 47...	[ "nonn", "walk" ]
A377866	[ 0, 0, 0, 1, 5, 18, 59, 185, 564, 1685, 4957, 14406, 41455, 118321, 335400, 945193, 2650229, 7398330, 20573219, 57013865, 157517532, 433993661, 1192779085, 3270835566, 8950887895, 24448816993, 66665369424, 181489721425, 493361278949 ]	[ "nonn", "easy" ]
A116585	[ 0, 1, 1, 2, 2, 2, 8, 4, 5, 34, 9, 14, 144, 21, 36, 610, 49, 95, 2584, 114, 250, 10946, 265, 657, 46368, 616, 1728, 196418, 1432, 4544, 832040, 3329, 11949, 3524578, 7739, 31422, 14930352, 17991, 82629, 63245986, 41824, 217286, 26791...	[ "nonn", "easy" ]
A050840	[ 1, 12, 13, 24, 25, 34, 36, 48, 61, 66, 196, 264, 376, 672, 732, 877, 1032, 1104, 1177, 1242, 2664, 7756, 35034, 37728, 57796, 96978, 98353, 277458, 282546, 418816, 582454, 653686, 663601, 665874, 668682, 769026 ]	[ "hard", "nonn" ]
A043194	[ 17, 73, 98, 153, 179, 235, 260, 316, 341, 397, 422, 478, 503, 559, 584, 640, 657, 721, 746, 802, 827, 882, 908, 964, 989, 1045, 1070, 1126, 1151, 1207, 1232, 1288, 1313, 1369, 1377, 1475, 1531, 1556, 1611, 1637, 1693, 1718 ]	[ "nonn", "base" ]
A268640	[ 5, 11, 17, 23, 47, 53, 71, 107, 191, 383, 431, 647, 863, 971, 1151, 2591, 4373, 6143, 6911, 8747, 13121, 15551, 23327, 27647, 62207, 73727, 139967, 165887, 294911, 314927, 442367, 472391, 497663, 786431, 995327, 1062881, 2519423, 10616831, ...	[ "nonn" ]
A384728	[ 1, 1, 1, 2, 3, 4, 6, 9, 13, 19, 28, 42, 62, 91, 135, 204, 304, 450, 674, 1016, 1519, 2267, 3408, 5138, 7718, 11574, 17431, 26325, 39653, 59637, 89962, 136038, 205288, 309398, 467365, 707419, 1069043, 1613776, 2440562, 3697006, 5593116, ...	[ "nonn" ]
A350079	[ 1, 1, 3, 1, 17, 1, 9, 142, 19, 27, 68, 1569, 201, 135, 510, 710, 21576, 2921, 3465, 2890, 6390, 9414, 355081, 50233, 63630, 20230, 84490, 98847, 151032, 6805296, 1004599, 1196181, 918680, 705740, 1493688, 1812384, 2840648, 148869153, 228720...	[ "nonn", "tabf" ]
A334973	[ 945, 43065, 46035, 48195, 80535, 354585, 403095, 430815, 437745, 442365, 458055, 2305875, 3525795, 4404105, 4891887, 5388495, 5803245, 6126645, 6220665, 6375105, 6537375, 7853625, 7981875, 8109585, 8731125, 9071865, 9338595, 9784125, 13241745, 13351635, 23...	[ "nonn" ]
A085629	[ 1, 4, 8, 16, 32, 64, 128, 144, 216, 288, 2048, 432, 8192, 1152, 864, 1296, 131072, 1728, 524288, 2592, 3456, 18432, 8388608, 5184, 7776, 73728, 13824, 10368, 536870912, 15552, 2147483648, 20736, 55296, 1179648, 31104, 41472, 137438953472, 471...	[ "nonn" ]
A216725	[ 3, 24, 100, 594, 4389, 35744, 325395, 3288600 ]	[ "dead" ]
A253374	[ 751689, 27587386, 912012350, 8129400162, 90160819133, 395423995297, 2328730657618, 7268309821982, 30358932724029, 80127971130743, 277035286072420, 673287348628358, 2096912690843655, 4920343202272054 ]	[ "nonn" ]
A321281	[ 21, 15, 13, 8, 9, 5, 3, 8, 8, 2, 2, 3, 2, 0, 2, 2, 2, 3, 2, 5, 1, 4, 0, 3, 1, 1, 1, 2, 2, 0, 2, 0, 0, 0, 2, 2, 1, 1, 3, 1, 0, 2, 0, 0, 3, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 2, 2, 1, 0, 2, 0, 1, 0, ...	[ "nonn", "base" ]
A039138	[ 0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 28, 29, 37, 40, 41, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 73, 80, 81, 82, 84, ...	[ "nonn", "base", "easy" ]
A101946	[ 1, 4, 13, 34, 79, 172, 361, 742, 1507, 3040, 6109, 12250, 24535, 49108, 98257, 196558, 393163, 786376, 1572805, 3145666, 6291391, 12582844, 25165753, 50331574, 100663219, 201326512, 402653101, 805306282, 1610612647, 3221225380, 6442450849, 12884901790 ]	[ "nonn", "easy" ]
A342840	[ 1, 1, 2, 6, 23, 1, 103, 10, 6, 1, 512, 77, 69, 30, 21, 5, 6, 2740, 548, 598, 330, 335, 123, 174, 58, 58, 37, 26, 3, 9, 1, 15485, 3799, 4686, 2970, 3411, 1676, 2338, 1040, 1317, 878, 777, 363, 608, 230, 252, 165, 133, 30,...	[ "nonn", "tabf" ]
A098885	[ 1, 1, 1, 2, 1, 1, 5, 2, 1, 1, 14, 1, 1, 1, 2, 5, 1, 1, 51, 1, 1, 1, 1, 2, 1, 1, 1, 267, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 1, 1, 2, 5, 1, 2328, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, ...	[ "nonn" ]
A122776	[ 1, 1, -1, -3, 1, -1, 0, 1, 1, 1, -4, 3, -2, 0, -1, 5, 2, 1, 4, -3, 0, -4, 0, -1, 1, -2, -1, 0, -2, -1, 0, -7, 4, 2, 0, -3, -10, 4, 2, 1, 10, 0, 4, 12, 1, 0, 8, -5, -7, 1, -2, 6, -10, -1, -4, 0, -4, -2, ...	[ "sign", "mult" ]
A376173	[ 8, 27, 32, 125, 128, 216, 243, 343, 432, 512, 648, 864, 1000, 1331, 1728, 1944, 2000, 2048, 2187, 2197, 2744, 3125, 3375, 3456, 4000, 4913, 5000, 5488, 5832, 6859, 6912, 7776, 8000, 8192, 9261, 10125, 10648, 10976, 12167, 13824, 15552, ...	[ "nonn", "easy" ]
A160367	[ 1, 0, 0, 2, 12, 0, 3840, 103680, 69088320, 881912908800 ]	[ "hard", "more", "nonn" ]
A070958	[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 199, 200, 288, 289, 298, 300, 377, 378, 379, 387, 397, 400, 466, 467, 468, 469, 476, 486, 496, 500, 555, 556, 557, 558, 559, 565, 575, 585, 595, 60...	[ "nonn", "easy", "base" ]
A261582	[ 1, -3, 6, -21, 69, -201, 591, -1785, 5406, -16194, 48426, -145380, 436641, -1309611, 3927399, -11783280, 35354139, -106059387, 318165729, -954506190, 2863556475, -8590643832, 25771817454, -77315531169, 231946940175, -695840583126, 2087520715788, -6262562872614 ]	[ "sign" ]
A203907	[ 55, 15, 165, 30, 275, 45, 1, 60, 495, 75, 13, 90, 11, 105, 825, 120, 1, 135, 77, 150, 3, 26, 95, 180, 1375, 22, 1485, 210, 77, 225, 1705, 240, 29, 2, 5, 270, 2035, 23, 33, 300, 2255, 315, 2365, 52, 2475, 190, 2585, 360, ...	[ "nonn", "easy", "nice" ]
A047636	[ 1, 0, 0, 182, 1092, 3822, 11284, 28938, 62244 ]	[ "nonn" ]
A083207	[ 6, 12, 20, 24, 28, 30, 40, 42, 48, 54, 56, 60, 66, 70, 78, 80, 84, 88, 90, 96, 102, 104, 108, 112, 114, 120, 126, 132, 138, 140, 150, 156, 160, 168, 174, 176, 180, 186, 192, 198, 204, 208, 210, 216, 220, 222, 224, 228, 2...	[ "nonn", "nice" ]
A012558	[ 0, 2, -4, -130, 2200, 393178, -36230060, -2241493098, 696842413488, 151155071419698, -94998751466350800, 4870009119362109000, 9.231493784347344e+21, 1.1743974676420454e+24 ]	[ "sign" ]
A339802	[ 6, 9, 1, 2, 1, 5, 8, 2, 0, 9, 2, 8, 7, 5, 5, 4, 0, 3, 3, 6, 5, 8, 4, 8, 1, 5, 3, 6, 9, 1, 2, 5, 4, 4, 9, 1, 2, 8, 2, 7, 8, 2, 9, 7, 9, 5, 4, 8, 1, 3, 2, 5, 0, 3, 3, 7, 0, 1, 4, 2, 6, 9, 3, 3...	[ "nonn", "cons" ]
A290523	[ 1, 2, 7, 14, 29, 63, 127, 252, 511, 1015, 2043, 4095, 8163, 16383, 32739, 65534, 130929, 262143, 524255, 1048383, 2097151, 4194171, 8388607, 16777087, 33552639, 67108727, 134216191, 268435455, 536870395, 1073740751, 2147478783, 4294967294, 8589931489 ]	[ "nonn", "easy" ]
A260049	[ 2312, 2432, 3232, 5319, 5373, 10112, 10719, 11691, 14592, 15417, 19712, 20412, 21688, 22194, 23841, 24705, 25920, 26217, 32724, 36096, 39168, 41823, 42194, 42417, 43713, 51597, 58029, 59211, 61557, 62192, 66944, 67068, 68553, 72873, 76464 ]	[ "base", "easy", "nonn" ]
A067226	[ 5005, 6745, 79695, 99145, 160195, 166135, 296065, 350935, 486805, 960355, 1291105, 1350745, 1817365, 2218645, 2445685, 3287680, 4069135, 5341375, 5497965, 8933085, 14495065, 15106795, 16824535, 16850995, 18510055, 18710125, 21309085, 21521500, 22453345 ]	[ "nonn" ]
A367759	[ 1, 1, 2, 1, 1, 1, 2, 3, 2, 3, 4, 2, 5, 10, 10, 4, 2, 33 ]	[ "nonn", "more" ]
A007760	[ 1, 2, 168, 17792748, 75241806496951630 ]	[ "nonn", "hard", "more" ]
A053025	[ 1, 1, 4, 5, 4, 6, 7, 7, 7, 5, 7, 7, 7, 7, 7, 6, 7, 7, 7, 7, 7, 8, 7, 7, 7, 7, 6, 6, 8, 6, 7, 6, 7, 8, 6, 8, 7, 5, 7, 6, 8, 6, 6, 8, 8, 8, 8, 8, 8, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 8, 7, 8...	[ "nonn" ]
A058029	[ 3, 5, 11, 59, 419, 839, 2521, 27733, 360337, 720703, 12252259, 232792559, 5354228879, 26771144401, 80313433231, 2329089562799, 72201776446801, 144403552893599, 5342931457063157, 219060189739591170 ]	[ "nonn" ]
A118170	[ 1, 1, 3, 4, 5, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 63, 64, 65, ...	[ "easy", "nonn" ]
A165341	[ 1, 19, 342, 6156, 110808, 1994544, 35901792, 646232256, 11632180608, 209379250773, 3768826510836, 67838877139815, 1221099787522476, 21979796157509076, 395636330513044500, 7121453943436662000 ]	[ "nonn" ]
A051906	[ 1, 0, 0, 0, 10, 0, 28, 0, 0, 0, 88, 0, 4524, 0, 0, 0, 140692, 0, 820496, 0, 0, 0, 128850048, 0, 1957725000, 0, 0, 0, 605917055356, 0, 13404947681712, 0, 0, 0 ]	[ "nonn", "nice", "hard", "more" ]
A283148	[ 8, 12, 27, 16, 20, 45, 125, 24, 28, 63, 175, 343, 32, 36, 81, 40, 44, 99, 275, 539, 1331, 48, 52, 117, 325, 637, 1573, 2197, 56, 60, 135, 64, 68, 153, 425, 833, 2057, 2873, 4913, 72, 76, 171, 475, 931, 2299, 3211, 5491, 68...	[ "nonn", "tabf" ]
A012811	[ 1, 1, 5, 205, 2473, 475385, -2814227, 5900398725, -532397600303, 273302104270705, -68724093821987750, 35776180280496600000, -1.633974804658802e+22, 1.0552119508350355e+25 ]	[ "sign" ]
A199784	[ 1, 2, 2, 3, 0, 5, 4, 0, 6, 5, 5, 1, 1, 1, 0, 2, 5, 7, 1, 3, 5, 0, 4, 8, 0, 4, 9, 4, 7, 2, 1, 9, 2, 8, 6, 9, 1, 7, 4, 0, 2, 7, 3, 8, 8, 0, 5, 8, 3, 4, 0, 0, 1, 0, 9, 7, 3, 4, 3, 6, 4, 6, 8, 8...	[ "nonn", "cons" ]
A154376	[ 23, 96, 219, 392, 615, 888, 1211, 1584, 2007, 2480, 3003, 3576, 4199, 4872, 5595, 6368, 7191, 8064, 8987, 9960, 10983, 12056, 13179, 14352, 15575, 16848, 18171, 19544, 20967, 22440, 23963, 25536, 27159, 28832, 30555, 32328, 34151, 36024 ]	[ "nonn", "easy" ]
A220256	[ 4, 35, 243, 1875, 15150, 115776, 903439, 7005461, 54249716, 420545092, 3257486504, 25234938173, 195482980668, 1514241800363, 11729682534441, 90860069201775, 703816232110196, 5451868968128240, 42230976869002530, 327127333101076030 ]	[ "nonn" ]
A017480	[ 5764801, 11019960576, 500246412961, 6553600000000, 45767944570401, 218340105584896, 806460091894081, 2478758911082496, 6634204312890625, 15938480745308416, 35114532758015840, 72057594037927940, 139353667211683680, 256289062500000000, 451447246258894100 ]	[ "nonn", "easy" ]
A207854	[ 9, 81, 289, 1369, 5929, 26569, 117649, 522729, 2319529, 10297681, 45711121, 202920025, 900780169, 3998665225, 17750499361, 78796419849, 349785896329, 1552737795921, 6892772417281, 30597768825625, 135826834143529 ]	[ "nonn" ]
A227677	[ 11, 131, 1343, 11971, 90884, 592791, 3380440, 17161921, 78807477, 331649881, 1292860261, 4709556398, 16147197916, 52422604429, 161978060979, 478412562214, 1355794408584, 3698766477709, 9741946309658, 24835300279682, 61420677587519, 147660194723529, 345707052962402 ]	[ "nonn" ]
A138258	[ 1, 2, 2, 2, 1, 2, 6, 7, 7, 7, 22, 2, 4, 6, 7, 13, 16, 7, 10, 7, 6, 31, 55, 7, 5, 4, 19, 6, 15, 7, 6, 17, 31, 16, 13, 7, 36, 10, 4, 7, 3, 6, 42, 31, 7, 55, 51, 13, 43, 26, 16, 4, 52, 19, 31, 13, 18, 15, ...	[ "nonn" ]
A184642	[ 1, 1, 2, 3, 5, 7, 11, 14, 22, 29, 41, 54, 75, 97, 130, 168, 222, 283, 368, 465, 597, 750, 949, 1183, 1488, 1841, 2292, 2822, 3487, 4267, 5239, 6376, 7782, 9429, 11439, 13798, 16661, 20007, 24043, 28763, 34420, 41021, 48894, 58066,...	[ "nonn" ]
A295470	[ 1, 83980, 29966636700, 12398706131799988, 5.447952226877284e+21, 2.47361787074723e+27, 1.1466022197451942e+33, 5.391101007796344e+38, 2.561308646652653e+44, 1.2265758688136259e+50 ]	[ "nonn" ]
A107590	[ 1, 1, 1, 2, 5, 15, 50, 181, 698, 2837, 12062, 53374, 244923, 1162536, 5697119, 28786266, 149814059, 802436166, 4420515689, 25031466730, 145616087486, 869760092469, 5330945435272, 33508699787635, 215863606818041 ]	[ "eigen", "nonn" ]
A130705	[ -109, -42, -26, -18, -14, -12, -10, -9, -8, -7, -6, -6, -5, -5, -5, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1 ]	[ "easy", "sign" ]
A384393	[ 11, 13, 17, 19, 23, 25, 29, 31, 34, 37, 38, 41, 43, 46, 47, 49, 51, 53, 55, 57, 58, 59, 61, 62, 65, 67, 69, 71, 73, 74, 77, 79, 82, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 101, 103, 106, 107, 109, 111, 113, 115, 11...	[ "nonn" ]
A082914	[ 1, 2, 3, 8, 20, 45, 144, 448, 1680, 4725, 17280, 62208, 290304, 1254400, 4465125, 18144000, 72990720, 391910400, 1881169920, 9754214400, 45660160000, 205752960000, 905748480000, 5280992640000, 28326238617600, 162956344320000, 853298675712000, 5309413982208000 ]	[ "nonn" ]
A243506	[ 1, 2, 5, 3, 14, 8, 41, 4, 13, 23, 122, 11, 365, 68, 38, 6, 1094, 18, 3281, 32, 113, 203, 9842, 17, 63, 608, 25, 95, 29525, 53, 88574, 7, 338, 1823, 188, 28, 265721, 5468, 1013, 50, 797162, 158, 2391485, 284, 74, 16403, 71744...	[ "nonn" ]
A379402	[ 1, 2, 9, 3, 11, 15, 4, 16, 18, 54, 5, 21, 23, 58, 91, 6, 32, 36, 102, 110, 205, 7, 37, 39, 129, 160, 272, 194, 8, 40, 46, 161, 167, 419, 271, 139, 10, 47, 55, 174, 238, 499, 416, 260, 86, 12, 56, 73, 245, 273, 597, ...	[ "nonn", "tabl" ]
A263486	[ 2, 6, 22, 2, 88, 27, 4, 1 ]	[ "nonn", "tabf", "more" ]
A204197	[ 1, 2, 2, 3, 8, 3, 5, 18, 18, 5, 8, 50, 33, 50, 8, 13, 128, 86, 86, 128, 13, 21, 338, 231, 265, 231, 338, 21, 34, 882, 639, 883, 883, 639, 882, 34, 55, 2312, 1724, 2974, 3716, 2974, 1724, 2312, 55, 89, 6050, 4697, 9940, ...	[ "nonn", "tabl" ]
A377511	[ 3, 2, 4, 1, 2, 1, 3, 1, 4, 1, 1, 1, 2, 1, 2, 3, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1, 2, 1, 2, 3, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 3, 1, 1, 1, 3, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 2, 1, 5, 1, 1...	[ "nonn", "changed" ]
A136116	[ 7, 8, 24, 25, 29, 31, 36, 42, 49, 59, 65, 66, 69, 72, 73, 74, 76, 80, 83, 93, 94, 99, 102, 104, 110, 117, 118, 121, 122, 123, 124, 126, 127, 138, 140, 144, 149, 150, 152, 161, 163, 168, 169, 174, 175, 178, 181, 185, 188,...	[ "nonn" ]
A087469	[ 0, 1, 0, 2, 1, 3, 0, 2, 4, 1, 3, 0, 5, 2, 4, 1, 6, 3, 0, 5, 2, 7, 4, 1, 6, 3, 0, 8, 5, 2, 7, 4, 1, 9, 6, 3, 0, 8, 5, 2, 10, 7, 4, 1, 9, 6, 3, 0, 11, 8, 5, 2, 10, 7, 4, 1, 12, 9, 6, 3, 0, 11, 8...	[ "nonn" ]
A257590	[ 13, 19, 23, 31, 47, 53, 61, 71, 73, 79, 83, 89 ]	[ "nonn", "more" ]
A305701	[ 0, 10, 100, 101, 102, 110, 120, 201, 210, 1000, 1001, 1002, 1010, 1011, 1012, 1020, 1021, 1022, 1023, 1032, 1100, 1101, 1102, 1110, 1120, 1200, 1201, 1202, 1203, 1210, 1220, 1230, 1302, 1320, 2001, 2010, 2011, 2012, 2013, 2021, 2031, ...	[ "nonn", "base" ]
A229523	[ 0, 38, 3906, 386517, 38671110, 3865941752, 386580463478, 38657862140521, 3865783461518530, 386578337105347700, 38657833484501790000, 3.865783345588493e+21, 3.8657833452987226e+23, 3.8657833452536034e+25, 3.8657833452494677e+27 ]	[ "nonn", "hard" ]
A227872	[ 1, 2, 1, 3, 1, 2, 2, 4, 1, 2, 2, 3, 2, 4, 1, 5, 1, 2, 2, 3, 3, 4, 1, 4, 2, 4, 1, 6, 1, 2, 2, 6, 2, 2, 3, 3, 2, 4, 2, 4, 2, 6, 1, 6, 1, 2, 2, 5, 3, 4, 1, 6, 1, 2, 3, 8, 2, 2, 2, 3, 2, 4, 3, 7...	[ "nonn", "base" ]
A203769	[ 0, 0, 1, 5, 30, 479, 35369, 36141988, 2591378388181, 187498452473472840000, 9.717724282486682e+32, 3.6441165794248858e+53 ]	[ "nonn" ]
A295862	[ 1, 3, 9, 18, 34, 60, 104, 175, 291, 479, 784, 1278, 2078, 3373, 5470, 8863, 14354, 23239, 37616, 60879, 98520, 159425, 257972, 417425, 675426, 1092881, 1768338, 2861251, 4629622, 7490908, 12120566, 19611511, 31732115, 51343665, 83075820, 13441952...	[ "nonn", "easy" ]
A173333	[ 1, 2, 1, 6, 3, 1, 24, 12, 4, 1, 120, 60, 20, 5, 1, 720, 360, 120, 30, 6, 1, 5040, 2520, 840, 210, 42, 7, 1, 40320, 20160, 6720, 1680, 336, 56, 8, 1, 362880, 181440, 60480, 15120, 3024, 504, 72, 9, 1, 3628800, 1814400, 6048...	[ "nonn", "tabl" ]
A040365	[ 19, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1,...	[ "nonn", "cofr", "easy" ]
A106254	[ 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 2, 1, 1, 3, 4, 3, 2, 1, 1, 4, 5, 5, 3, 2, 1, 1, 4, 7, 6, 5, 3, 2, 1, 1, 5, 8, 9, 7, 5, 3, 2, 1, 1, 5, 10, 11, 10, 7, 5, 3, 2, 1, 1, 6, 12, 15, 13, 11, 7, ...	[ "nonn", "tabl" ]
A358528	[ 5, 11, 17, 23, 29, 37, 47, 53, 67, 79, 89, 97, 107, 113, 127, 137, 149, 157, 173, 191, 197, 211, 233, 239, 251, 277, 293, 307, 317, 331, 347, 353, 359, 367, 389, 397, 409, 419, 431, 439, 449, 457, 467, 479, 499, 509, 521, ...	[ "nonn", "easy" ]
A222440	[ 27, 1029, 39285, 1500183, 57289767, 2187822609, 83550197745, 3190677470643, 121847980727187, 4653221950068669, 177700725073710270, 6786168386579878000, 259155281174281950000, 9.896815984320245e+21, 3.779470215065483e+23 ]	[ "nonn" ]
A234718	[ 2, 3, 5, 6, 9, 10, 12, 18, 24, 30, 48, 60, 72, 96, 120, 144, 192, 256, 288, 384, 512, 576 ]	[ "nonn" ]
A158243	[ 0, 0, 1, 0, 3, 20, 105, 714, 5845, 52632, 525105, 5777090, 69337521, 901364100, 12618959353, 189284859750, 3028559357265, 51485499960944, 926738981188065, 17608040824708242, 352160816656099460, 7395377145973454000, 162698297211819980000, 3.742060835955158e+21 ]	[ "nonn" ]
A085852	[ 1, 0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 11, 11, 1, 0, 1, 26, 62, 26, 1, 0, 1, 57, 266, 258, 57, 1, 0, 1, 120, 991, 1792, 903, 120, 1, 0, 1, 247, 3405, 10363, 9483, 2829, 247, 1, 0, 1, 502, 11140, 53818, 80342, 42906, ...	[ "nonn", "tabl" ]
A106914	[ 3, 5, 59, 61, 131, 157, 283, 293, 349, 397, 461, 523, 587, 661, 677, 691, 787, 853, 859, 997, 1013, 1091, 1109, 1237, 1277, 1301, 1427, 1459, 1571, 1699, 1811, 1973, 1979, 2029, 2141, 2203, 2243, 2309, 2467, 2579, 2659, 2693, 2749, ...	[ "nonn", "easy" ]
A040145	[ 2, 3, 19, 31, 59, 67, 71, 79, 101, 103, 107, 127, 149, 151, 157, 167, 179, 211, 223, 227, 229, 233, 277, 307, 313, 331, 349, 379, 383, 397, 431, 439, 457, 461, 487, 523, 547, 557, 563, 577, 593, 599, 607, 613 ]	[ "nonn", "easy" ]
A187979	[ 0, 2, 7, 30, 144, 597, 2742, 12148, 54696, 247482, 1120330, 5099759, 23249035, 106285418, 486878283, 2234333944, 10271022863, 47283130811, 217962771486, 1005958652638, 4647869260260, 21496269109425, 99510938004788, 461047642206301, 2137763442289891, 9919444208575432...	[ "nonn" ]
A028739	[ 2, 5, 6, 7, 8, 11, 15, 18, 19, 20, 21, 24 ]	[ "nonn", "fini", "full" ]
A170777	[ 0, 1, 4224, 800442, 33587200, 610546875, 6531186816, 48447387604, 274886295552, 1270954437525, 5000050000000, 17261463251406, 53496817680384, 151437961161487, 396858124521600, 973098815625000, 2251801961168896 ]	[ "nonn", "easy" ]
A344200	[ 20, 60, 100, 140, 260, 900, 7980, 13500 ]	[ "nonn", "hard", "more" ]
A059542	[ 2, 4, 7, 9, 12, 14, 17, 19, 21, 24, 26, 29, 31, 34, 36, 39, 41, 43, 46, 48, 51, 53, 56, 58, 61, 63, 65, 68, 70, 73, 75, 78, 80, 83, 85, 87, 90, 92, 95, 97, 100, 102, 105, 107, 109, 112, 114, 117, 119, 122, 124, 127...	[ "nonn", "easy" ]
A333680	[ 1, 2, 3, 8, 20, 48, 112, 272, 666, 1690, 4367, 11436, 30147, 80248, 215550, 583456, 1588956, 4351806, 11979481, 33127440, 91982688, 256354098, 716879847, 2010919560, 5656813275, 15954441334, 45106324389, 127809023944, 362897750254, 1032389760540, 294227859...	[ "nonn" ]
A370155	[ 1, 0, -6, 19, 17, -98, 39, 291, -264, -627, 773, 1525, -2000, -3895, 5606, 8784, -14325, -18125, 32856, 37727, -72557, -77316, 157044, 150945, -326602, -286320, 655760, 536800, -1287225, -986584, 2474251, 1770786, -4650780, -3122412, 8570426, 543...	[ "sign" ]
A015302	[ 1, 19141, 399683221, 8283038077141, 171765360605672930, 3.5617122044869906e+21, 7.3855689005170235e+25, 1.5314715244727117e+30, 3.1756593605318274e+34 ]	[ "nonn", "easy" ]
A159956	[ 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2...	[ "easy", "nonn" ]

A109245

[ 1, 1, 5, 15, 54, 193, 708, 2627, 9846, 37178, 141223, 539047, 2065813, 7943706, 30634329, 118433821, 458867295, 1781267606, 6926405025, 26973935420, 105189301334, 410707352869, 1605379739149, 6281519778025, 24601184635436 ]

[ "easy", "nonn" ]

A255890

[ 1, 1, 2, 3, 1, 2, 3, 3, 3, 2, 3, 4, 2, 2, 4, 4, 2, 3, 4, 4, 3, 3, 5, 4, 2, 3, 5, 5, 3, 3, 5, 6, 3, 3, 5, 6, 3 ]

[ "nonn", "more" ]

A180222

[ 0, 1, 4, 24, 128, 704, 3840, 20992, 114688, 626688, 3424256, 18710528, 102236160, 558628864, 3052404736, 16678649856, 91133837312, 497964548096, 2720928890880, 14867431948288, 81237158920192, 443888091267072, 2425449636429824, 13252903275855872 ]

[ "nonn", "easy" ]

A067344

[ 1, 21, 41, 120, 242, 312, 323, 401, 501, 1040, 1114, 1141, 1204, 1214, 1233, 1241, 1304, 1503, 2033, 2115, 2133, 2140, 2403, 3010, 3014, 3124, 3211, 3304, 3322, 4001, 4012, 4121, 4301, 4310, 5130, 10044, 10214, 10242, 10320, 10324, 1104...

[ "base", "nonn" ]

A000771

[ 1, 28, 462, 5880, 63987, 627396, 5715424, 49329280, 408741333, 3281882604, 25708104786, 197462483400, 1492924634839, 11143554045652, 82310957214948, 602762379967440, 4382641999117305, 31677463851804540, 227832482998716320, 1631853797991016700 ]

[ "nonn", "easy" ]

A252428

[ 1142, 1033, 1810, 3954, 9643, 24024, 59977, 153283, 389066, 994207, 2583468, 6641473, 17166060, 45035698, 116572494, 303313550, 800157489, 2078949610, 5429352825, 14366800297, 37404613287, 97882351085, 259440365356 ]

[ "nonn" ]

A287501

[ 1, 3, 3, 14, 7, 63, 15, 248, 31, 1022, 63, 4071, 119, 16382, 255, 65439, 496, 262143, 984, 1048191, 1916, 4194303, 4094, 16775679, 8191, 67108863, 15420, 268429311, 30334, 1073741823, 65535, 4294942719, 129020, 17179869183, 253950, 68719378431, ...

[ "nonn", "easy" ]

A293929

[ 0, 10, 19, 118, 3187, 3014173, 3003344034004 ]

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

A279259

[ 53, 159, 1735, 4508, 3222, 18238, 31499, 16965, 78013, 114722, 54348, 225124, 303425, 133515, 519187, 662408, 277794, 1035370, 1272023, 515697, 1864393, 2228174, 880920, 3112528, 3642317, 1412343, 4901599, 5641460, 2154030, 7368982, 8368163, 3155229, 1...

[ "nonn", "easy" ]

A139793

[ 0, 11, 23, 36, 41, 56, 63, 71, 89, 99, 11, 23, 36, 41 ]

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

A127423

[ 1, 21, 32, 43, 54, 65, 76, 87, 98, 109, 1110, 1211, 1312, 1413, 1514, 1615, 1716, 1817, 1918, 2019, 2120, 2221, 2322, 2423, 2524, 2625, 2726, 2827, 2928, 3029, 3130, 3231, 3332, 3433, 3534, 3635, 3736, 3837, 3938, 4039, 4140, 4241, ...

[ "nonn", "base" ]

A009926

[ 1, 8, 12, 48, 42, 128, 92, 248, 162, 408, 252, 608, 362, 848, 492, 1128, 642, 1448, 812, 1808, 1002, 2208, 1212, 2648, 1442, 3128, 1692, 3648, 1962, 4208, 2252, 4808, 2562, 5448, 2892, 6128, 3242, 6848, 3612, 7608, 4002, 8408, 4412,...

[ "nonn" ]

A237228

[ 268, 984, 3284, 10888, 36180, 120540, 401520, 1336540, 4448892, 14811704, 49313092, 164172108, 546554288, 1819586828, 6057775468, 20167512408, 67141506132, 223527096380, 744165226864, 2477470556540, 8247979825436 ]

[ "nonn" ]

A126248

[ 60, 210, 1716, 5814, 26970, 74046, 215940, 373176, 1061106, 1259604, 2627934, 3374850, 5831820, 7077696, 7762194, 11852124, 13823760, 19682730, 22425486, 30371016, 42143844, 74087580, 80621136, 98610666, 142236126, 185192430 ]

[ "nonn" ]

A076276

[ 0, 0, 1, 3, 7, 13, 24, 39, 64, 98, 150, 219, 322, 455, 645, 892, 1232, 1668, 2259, 3008, 4003, 5260, 6897, 8951, 11599, 14893, 19086, 24284, 30827, 38888, 48959, 61293, 76578, 95223, 118152, 145993, 180037, 221175, 271186, 331402, 40420...

[ "nonn" ]

A358644

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

[ "nonn", "cons" ]

A150472

[ 1, 2, 7, 25, 99, 403, 1719, 7451, 33116, 148742, 678430, 3117059, 14468349, 67515160, 317323787, 1497442597, 7103751478, 33805337279, 161517974750, 773643738505, 3717199351855, 17896679846060, 86379015071009, 417611710091614, 2023077824973609, 9814381630455424, 47...

[ "nonn", "walk" ]

A377866

[ 0, 0, 0, 1, 5, 18, 59, 185, 564, 1685, 4957, 14406, 41455, 118321, 335400, 945193, 2650229, 7398330, 20573219, 57013865, 157517532, 433993661, 1192779085, 3270835566, 8950887895, 24448816993, 66665369424, 181489721425, 493361278949 ]

[ "nonn", "easy" ]

A116585

[ 0, 1, 1, 2, 2, 2, 8, 4, 5, 34, 9, 14, 144, 21, 36, 610, 49, 95, 2584, 114, 250, 10946, 265, 657, 46368, 616, 1728, 196418, 1432, 4544, 832040, 3329, 11949, 3524578, 7739, 31422, 14930352, 17991, 82629, 63245986, 41824, 217286, 26791...

[ "nonn", "easy" ]

A050840

[ 1, 12, 13, 24, 25, 34, 36, 48, 61, 66, 196, 264, 376, 672, 732, 877, 1032, 1104, 1177, 1242, 2664, 7756, 35034, 37728, 57796, 96978, 98353, 277458, 282546, 418816, 582454, 653686, 663601, 665874, 668682, 769026 ]

[ "hard", "nonn" ]

A043194

[ 17, 73, 98, 153, 179, 235, 260, 316, 341, 397, 422, 478, 503, 559, 584, 640, 657, 721, 746, 802, 827, 882, 908, 964, 989, 1045, 1070, 1126, 1151, 1207, 1232, 1288, 1313, 1369, 1377, 1475, 1531, 1556, 1611, 1637, 1693, 1718 ]

[ "nonn", "base" ]

A268640

[ 5, 11, 17, 23, 47, 53, 71, 107, 191, 383, 431, 647, 863, 971, 1151, 2591, 4373, 6143, 6911, 8747, 13121, 15551, 23327, 27647, 62207, 73727, 139967, 165887, 294911, 314927, 442367, 472391, 497663, 786431, 995327, 1062881, 2519423, 10616831, ...

[ "nonn" ]

A384728

[ 1, 1, 1, 2, 3, 4, 6, 9, 13, 19, 28, 42, 62, 91, 135, 204, 304, 450, 674, 1016, 1519, 2267, 3408, 5138, 7718, 11574, 17431, 26325, 39653, 59637, 89962, 136038, 205288, 309398, 467365, 707419, 1069043, 1613776, 2440562, 3697006, 5593116, ...

[ "nonn" ]

A350079

[ 1, 1, 3, 1, 17, 1, 9, 142, 19, 27, 68, 1569, 201, 135, 510, 710, 21576, 2921, 3465, 2890, 6390, 9414, 355081, 50233, 63630, 20230, 84490, 98847, 151032, 6805296, 1004599, 1196181, 918680, 705740, 1493688, 1812384, 2840648, 148869153, 228720...

[ "nonn", "tabf" ]

A334973

[ 945, 43065, 46035, 48195, 80535, 354585, 403095, 430815, 437745, 442365, 458055, 2305875, 3525795, 4404105, 4891887, 5388495, 5803245, 6126645, 6220665, 6375105, 6537375, 7853625, 7981875, 8109585, 8731125, 9071865, 9338595, 9784125, 13241745, 13351635, 23...

[ "nonn" ]

A085629

[ 1, 4, 8, 16, 32, 64, 128, 144, 216, 288, 2048, 432, 8192, 1152, 864, 1296, 131072, 1728, 524288, 2592, 3456, 18432, 8388608, 5184, 7776, 73728, 13824, 10368, 536870912, 15552, 2147483648, 20736, 55296, 1179648, 31104, 41472, 137438953472, 471...

[ "nonn" ]

A216725

[ 3, 24, 100, 594, 4389, 35744, 325395, 3288600 ]

[ "dead" ]

A253374

[ 751689, 27587386, 912012350, 8129400162, 90160819133, 395423995297, 2328730657618, 7268309821982, 30358932724029, 80127971130743, 277035286072420, 673287348628358, 2096912690843655, 4920343202272054 ]

[ "nonn" ]

A321281

[ 21, 15, 13, 8, 9, 5, 3, 8, 8, 2, 2, 3, 2, 0, 2, 2, 2, 3, 2, 5, 1, 4, 0, 3, 1, 1, 1, 2, 2, 0, 2, 0, 0, 0, 2, 2, 1, 1, 3, 1, 0, 2, 0, 0, 3, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 2, 2, 1, 0, 2, 0, 1, 0, ...

[ "nonn", "base" ]

A039138

[ 0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 28, 29, 37, 40, 41, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 58, 59, 60, 61, 62, 64, 65, 66, 68, 69, 73, 80, 81, 82, 84, ...

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

A101946

[ 1, 4, 13, 34, 79, 172, 361, 742, 1507, 3040, 6109, 12250, 24535, 49108, 98257, 196558, 393163, 786376, 1572805, 3145666, 6291391, 12582844, 25165753, 50331574, 100663219, 201326512, 402653101, 805306282, 1610612647, 3221225380, 6442450849, 12884901790 ]

[ "nonn", "easy" ]

A342840

[ 1, 1, 2, 6, 23, 1, 103, 10, 6, 1, 512, 77, 69, 30, 21, 5, 6, 2740, 548, 598, 330, 335, 123, 174, 58, 58, 37, 26, 3, 9, 1, 15485, 3799, 4686, 2970, 3411, 1676, 2338, 1040, 1317, 878, 777, 363, 608, 230, 252, 165, 133, 30,...

[ "nonn", "tabf" ]

A098885

[ 1, 1, 1, 2, 1, 1, 5, 2, 1, 1, 14, 1, 1, 1, 2, 5, 1, 1, 51, 1, 1, 1, 1, 2, 1, 1, 1, 267, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 1, 1, 2, 5, 1, 2328, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, ...

[ "nonn" ]

A122776

[ 1, 1, -1, -3, 1, -1, 0, 1, 1, 1, -4, 3, -2, 0, -1, 5, 2, 1, 4, -3, 0, -4, 0, -1, 1, -2, -1, 0, -2, -1, 0, -7, 4, 2, 0, -3, -10, 4, 2, 1, 10, 0, 4, 12, 1, 0, 8, -5, -7, 1, -2, 6, -10, -1, -4, 0, -4, -2, ...

[ "sign", "mult" ]

A376173

[ 8, 27, 32, 125, 128, 216, 243, 343, 432, 512, 648, 864, 1000, 1331, 1728, 1944, 2000, 2048, 2187, 2197, 2744, 3125, 3375, 3456, 4000, 4913, 5000, 5488, 5832, 6859, 6912, 7776, 8000, 8192, 9261, 10125, 10648, 10976, 12167, 13824, 15552, ...

[ "nonn", "easy" ]

A160367

[ 1, 0, 0, 2, 12, 0, 3840, 103680, 69088320, 881912908800 ]

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

A070958

[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 199, 200, 288, 289, 298, 300, 377, 378, 379, 387, 397, 400, 466, 467, 468, 469, 476, 486, 496, 500, 555, 556, 557, 558, 559, 565, 575, 585, 595, 60...

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

A261582

[ 1, -3, 6, -21, 69, -201, 591, -1785, 5406, -16194, 48426, -145380, 436641, -1309611, 3927399, -11783280, 35354139, -106059387, 318165729, -954506190, 2863556475, -8590643832, 25771817454, -77315531169, 231946940175, -695840583126, 2087520715788, -6262562872614 ]

[ "sign" ]

A203907

[ 55, 15, 165, 30, 275, 45, 1, 60, 495, 75, 13, 90, 11, 105, 825, 120, 1, 135, 77, 150, 3, 26, 95, 180, 1375, 22, 1485, 210, 77, 225, 1705, 240, 29, 2, 5, 270, 2035, 23, 33, 300, 2255, 315, 2365, 52, 2475, 190, 2585, 360, ...

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

A047636

[ 1, 0, 0, 182, 1092, 3822, 11284, 28938, 62244 ]

[ "nonn" ]

A083207

[ 6, 12, 20, 24, 28, 30, 40, 42, 48, 54, 56, 60, 66, 70, 78, 80, 84, 88, 90, 96, 102, 104, 108, 112, 114, 120, 126, 132, 138, 140, 150, 156, 160, 168, 174, 176, 180, 186, 192, 198, 204, 208, 210, 216, 220, 222, 224, 228, 2...

[ "nonn", "nice" ]

A012558

[ 0, 2, -4, -130, 2200, 393178, -36230060, -2241493098, 696842413488, 151155071419698, -94998751466350800, 4870009119362109000, 9.231493784347344e+21, 1.1743974676420454e+24 ]

[ "sign" ]

A339802

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

[ "nonn", "cons" ]

A290523

[ 1, 2, 7, 14, 29, 63, 127, 252, 511, 1015, 2043, 4095, 8163, 16383, 32739, 65534, 130929, 262143, 524255, 1048383, 2097151, 4194171, 8388607, 16777087, 33552639, 67108727, 134216191, 268435455, 536870395, 1073740751, 2147478783, 4294967294, 8589931489 ]

[ "nonn", "easy" ]

A260049

[ 2312, 2432, 3232, 5319, 5373, 10112, 10719, 11691, 14592, 15417, 19712, 20412, 21688, 22194, 23841, 24705, 25920, 26217, 32724, 36096, 39168, 41823, 42194, 42417, 43713, 51597, 58029, 59211, 61557, 62192, 66944, 67068, 68553, 72873, 76464 ]

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

A067226

[ 5005, 6745, 79695, 99145, 160195, 166135, 296065, 350935, 486805, 960355, 1291105, 1350745, 1817365, 2218645, 2445685, 3287680, 4069135, 5341375, 5497965, 8933085, 14495065, 15106795, 16824535, 16850995, 18510055, 18710125, 21309085, 21521500, 22453345 ]

[ "nonn" ]

A367759

[ 1, 1, 2, 1, 1, 1, 2, 3, 2, 3, 4, 2, 5, 10, 10, 4, 2, 33 ]

[ "nonn", "more" ]

A007760

[ 1, 2, 168, 17792748, 75241806496951630 ]

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

A053025

[ 1, 1, 4, 5, 4, 6, 7, 7, 7, 5, 7, 7, 7, 7, 7, 6, 7, 7, 7, 7, 7, 8, 7, 7, 7, 7, 6, 6, 8, 6, 7, 6, 7, 8, 6, 8, 7, 5, 7, 6, 8, 6, 6, 8, 8, 8, 8, 8, 8, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 8, 7, 8...

[ "nonn" ]

A058029

[ 3, 5, 11, 59, 419, 839, 2521, 27733, 360337, 720703, 12252259, 232792559, 5354228879, 26771144401, 80313433231, 2329089562799, 72201776446801, 144403552893599, 5342931457063157, 219060189739591170 ]

[ "nonn" ]

A118170

[ 1, 1, 3, 4, 5, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 25, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 63, 64, 65, ...

[ "easy", "nonn" ]

A165341

[ 1, 19, 342, 6156, 110808, 1994544, 35901792, 646232256, 11632180608, 209379250773, 3768826510836, 67838877139815, 1221099787522476, 21979796157509076, 395636330513044500, 7121453943436662000 ]

[ "nonn" ]

A051906

[ 1, 0, 0, 0, 10, 0, 28, 0, 0, 0, 88, 0, 4524, 0, 0, 0, 140692, 0, 820496, 0, 0, 0, 128850048, 0, 1957725000, 0, 0, 0, 605917055356, 0, 13404947681712, 0, 0, 0 ]

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

A283148

[ 8, 12, 27, 16, 20, 45, 125, 24, 28, 63, 175, 343, 32, 36, 81, 40, 44, 99, 275, 539, 1331, 48, 52, 117, 325, 637, 1573, 2197, 56, 60, 135, 64, 68, 153, 425, 833, 2057, 2873, 4913, 72, 76, 171, 475, 931, 2299, 3211, 5491, 68...

[ "nonn", "tabf" ]

A012811

[ 1, 1, 5, 205, 2473, 475385, -2814227, 5900398725, -532397600303, 273302104270705, -68724093821987750, 35776180280496600000, -1.633974804658802e+22, 1.0552119508350355e+25 ]

[ "sign" ]

A199784

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

[ "nonn", "cons" ]

A154376

[ 23, 96, 219, 392, 615, 888, 1211, 1584, 2007, 2480, 3003, 3576, 4199, 4872, 5595, 6368, 7191, 8064, 8987, 9960, 10983, 12056, 13179, 14352, 15575, 16848, 18171, 19544, 20967, 22440, 23963, 25536, 27159, 28832, 30555, 32328, 34151, 36024 ]

[ "nonn", "easy" ]

A220256

[ 4, 35, 243, 1875, 15150, 115776, 903439, 7005461, 54249716, 420545092, 3257486504, 25234938173, 195482980668, 1514241800363, 11729682534441, 90860069201775, 703816232110196, 5451868968128240, 42230976869002530, 327127333101076030 ]

[ "nonn" ]

A017480

[ 5764801, 11019960576, 500246412961, 6553600000000, 45767944570401, 218340105584896, 806460091894081, 2478758911082496, 6634204312890625, 15938480745308416, 35114532758015840, 72057594037927940, 139353667211683680, 256289062500000000, 451447246258894100 ]

[ "nonn", "easy" ]

A207854

[ 9, 81, 289, 1369, 5929, 26569, 117649, 522729, 2319529, 10297681, 45711121, 202920025, 900780169, 3998665225, 17750499361, 78796419849, 349785896329, 1552737795921, 6892772417281, 30597768825625, 135826834143529 ]

[ "nonn" ]

A227677

[ 11, 131, 1343, 11971, 90884, 592791, 3380440, 17161921, 78807477, 331649881, 1292860261, 4709556398, 16147197916, 52422604429, 161978060979, 478412562214, 1355794408584, 3698766477709, 9741946309658, 24835300279682, 61420677587519, 147660194723529, 345707052962402 ]

[ "nonn" ]

A138258

[ 1, 2, 2, 2, 1, 2, 6, 7, 7, 7, 22, 2, 4, 6, 7, 13, 16, 7, 10, 7, 6, 31, 55, 7, 5, 4, 19, 6, 15, 7, 6, 17, 31, 16, 13, 7, 36, 10, 4, 7, 3, 6, 42, 31, 7, 55, 51, 13, 43, 26, 16, 4, 52, 19, 31, 13, 18, 15, ...

[ "nonn" ]

A184642

[ 1, 1, 2, 3, 5, 7, 11, 14, 22, 29, 41, 54, 75, 97, 130, 168, 222, 283, 368, 465, 597, 750, 949, 1183, 1488, 1841, 2292, 2822, 3487, 4267, 5239, 6376, 7782, 9429, 11439, 13798, 16661, 20007, 24043, 28763, 34420, 41021, 48894, 58066,...

[ "nonn" ]

A295470

[ 1, 83980, 29966636700, 12398706131799988, 5.447952226877284e+21, 2.47361787074723e+27, 1.1466022197451942e+33, 5.391101007796344e+38, 2.561308646652653e+44, 1.2265758688136259e+50 ]

[ "nonn" ]

A107590

[ 1, 1, 1, 2, 5, 15, 50, 181, 698, 2837, 12062, 53374, 244923, 1162536, 5697119, 28786266, 149814059, 802436166, 4420515689, 25031466730, 145616087486, 869760092469, 5330945435272, 33508699787635, 215863606818041 ]

[ "eigen", "nonn" ]

A130705

[ -109, -42, -26, -18, -14, -12, -10, -9, -8, -7, -6, -6, -5, -5, -5, -4, -4, -4, -4, -4, -3, -3, -3, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1 ]

[ "easy", "sign" ]

A384393

[ 11, 13, 17, 19, 23, 25, 29, 31, 34, 37, 38, 41, 43, 46, 47, 49, 51, 53, 55, 57, 58, 59, 61, 62, 65, 67, 69, 71, 73, 74, 77, 79, 82, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 101, 103, 106, 107, 109, 111, 113, 115, 11...

[ "nonn" ]

A082914

[ 1, 2, 3, 8, 20, 45, 144, 448, 1680, 4725, 17280, 62208, 290304, 1254400, 4465125, 18144000, 72990720, 391910400, 1881169920, 9754214400, 45660160000, 205752960000, 905748480000, 5280992640000, 28326238617600, 162956344320000, 853298675712000, 5309413982208000 ]

[ "nonn" ]

A243506

[ 1, 2, 5, 3, 14, 8, 41, 4, 13, 23, 122, 11, 365, 68, 38, 6, 1094, 18, 3281, 32, 113, 203, 9842, 17, 63, 608, 25, 95, 29525, 53, 88574, 7, 338, 1823, 188, 28, 265721, 5468, 1013, 50, 797162, 158, 2391485, 284, 74, 16403, 71744...

[ "nonn" ]

A379402

[ 1, 2, 9, 3, 11, 15, 4, 16, 18, 54, 5, 21, 23, 58, 91, 6, 32, 36, 102, 110, 205, 7, 37, 39, 129, 160, 272, 194, 8, 40, 46, 161, 167, 419, 271, 139, 10, 47, 55, 174, 238, 499, 416, 260, 86, 12, 56, 73, 245, 273, 597, ...

[ "nonn", "tabl" ]

A263486

[ 2, 6, 22, 2, 88, 27, 4, 1 ]

[ "nonn", "tabf", "more" ]

A204197

[ 1, 2, 2, 3, 8, 3, 5, 18, 18, 5, 8, 50, 33, 50, 8, 13, 128, 86, 86, 128, 13, 21, 338, 231, 265, 231, 338, 21, 34, 882, 639, 883, 883, 639, 882, 34, 55, 2312, 1724, 2974, 3716, 2974, 1724, 2312, 55, 89, 6050, 4697, 9940, ...

[ "nonn", "tabl" ]

A377511

[ 3, 2, 4, 1, 2, 1, 3, 1, 4, 1, 1, 1, 2, 1, 2, 3, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1, 2, 1, 2, 3, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 3, 1, 1, 1, 3, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 2, 1, 5, 1, 1...

[ "nonn", "changed" ]

A136116

[ 7, 8, 24, 25, 29, 31, 36, 42, 49, 59, 65, 66, 69, 72, 73, 74, 76, 80, 83, 93, 94, 99, 102, 104, 110, 117, 118, 121, 122, 123, 124, 126, 127, 138, 140, 144, 149, 150, 152, 161, 163, 168, 169, 174, 175, 178, 181, 185, 188,...

[ "nonn" ]

A087469

[ 0, 1, 0, 2, 1, 3, 0, 2, 4, 1, 3, 0, 5, 2, 4, 1, 6, 3, 0, 5, 2, 7, 4, 1, 6, 3, 0, 8, 5, 2, 7, 4, 1, 9, 6, 3, 0, 8, 5, 2, 10, 7, 4, 1, 9, 6, 3, 0, 11, 8, 5, 2, 10, 7, 4, 1, 12, 9, 6, 3, 0, 11, 8...

[ "nonn" ]

A257590

[ 13, 19, 23, 31, 47, 53, 61, 71, 73, 79, 83, 89 ]

[ "nonn", "more" ]

A305701

[ 0, 10, 100, 101, 102, 110, 120, 201, 210, 1000, 1001, 1002, 1010, 1011, 1012, 1020, 1021, 1022, 1023, 1032, 1100, 1101, 1102, 1110, 1120, 1200, 1201, 1202, 1203, 1210, 1220, 1230, 1302, 1320, 2001, 2010, 2011, 2012, 2013, 2021, 2031, ...

[ "nonn", "base" ]

A229523

[ 0, 38, 3906, 386517, 38671110, 3865941752, 386580463478, 38657862140521, 3865783461518530, 386578337105347700, 38657833484501790000, 3.865783345588493e+21, 3.8657833452987226e+23, 3.8657833452536034e+25, 3.8657833452494677e+27 ]

[ "nonn", "hard" ]

A227872

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

[ "nonn", "base" ]

A203769

[ 0, 0, 1, 5, 30, 479, 35369, 36141988, 2591378388181, 187498452473472840000, 9.717724282486682e+32, 3.6441165794248858e+53 ]

[ "nonn" ]

A295862

[ 1, 3, 9, 18, 34, 60, 104, 175, 291, 479, 784, 1278, 2078, 3373, 5470, 8863, 14354, 23239, 37616, 60879, 98520, 159425, 257972, 417425, 675426, 1092881, 1768338, 2861251, 4629622, 7490908, 12120566, 19611511, 31732115, 51343665, 83075820, 13441952...

[ "nonn", "easy" ]

A173333

[ 1, 2, 1, 6, 3, 1, 24, 12, 4, 1, 120, 60, 20, 5, 1, 720, 360, 120, 30, 6, 1, 5040, 2520, 840, 210, 42, 7, 1, 40320, 20160, 6720, 1680, 336, 56, 8, 1, 362880, 181440, 60480, 15120, 3024, 504, 72, 9, 1, 3628800, 1814400, 6048...

[ "nonn", "tabl" ]

A040365

[ 19, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1, 1, 38, 1, 1, 1, 1, 1, 3, 1, 2, 1, 3, 1, 1, 1, 1,...

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

A106254

[ 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 2, 1, 1, 3, 4, 3, 2, 1, 1, 4, 5, 5, 3, 2, 1, 1, 4, 7, 6, 5, 3, 2, 1, 1, 5, 8, 9, 7, 5, 3, 2, 1, 1, 5, 10, 11, 10, 7, 5, 3, 2, 1, 1, 6, 12, 15, 13, 11, 7, ...

[ "nonn", "tabl" ]

A358528

[ 5, 11, 17, 23, 29, 37, 47, 53, 67, 79, 89, 97, 107, 113, 127, 137, 149, 157, 173, 191, 197, 211, 233, 239, 251, 277, 293, 307, 317, 331, 347, 353, 359, 367, 389, 397, 409, 419, 431, 439, 449, 457, 467, 479, 499, 509, 521, ...

[ "nonn", "easy" ]

A222440

[ 27, 1029, 39285, 1500183, 57289767, 2187822609, 83550197745, 3190677470643, 121847980727187, 4653221950068669, 177700725073710270, 6786168386579878000, 259155281174281950000, 9.896815984320245e+21, 3.779470215065483e+23 ]

[ "nonn" ]

A234718

[ 2, 3, 5, 6, 9, 10, 12, 18, 24, 30, 48, 60, 72, 96, 120, 144, 192, 256, 288, 384, 512, 576 ]

[ "nonn" ]

A158243

[ 0, 0, 1, 0, 3, 20, 105, 714, 5845, 52632, 525105, 5777090, 69337521, 901364100, 12618959353, 189284859750, 3028559357265, 51485499960944, 926738981188065, 17608040824708242, 352160816656099460, 7395377145973454000, 162698297211819980000, 3.742060835955158e+21 ]

[ "nonn" ]

A085852

[ 1, 0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 11, 11, 1, 0, 1, 26, 62, 26, 1, 0, 1, 57, 266, 258, 57, 1, 0, 1, 120, 991, 1792, 903, 120, 1, 0, 1, 247, 3405, 10363, 9483, 2829, 247, 1, 0, 1, 502, 11140, 53818, 80342, 42906, ...

[ "nonn", "tabl" ]

A106914

[ 3, 5, 59, 61, 131, 157, 283, 293, 349, 397, 461, 523, 587, 661, 677, 691, 787, 853, 859, 997, 1013, 1091, 1109, 1237, 1277, 1301, 1427, 1459, 1571, 1699, 1811, 1973, 1979, 2029, 2141, 2203, 2243, 2309, 2467, 2579, 2659, 2693, 2749, ...

[ "nonn", "easy" ]

A040145

[ 2, 3, 19, 31, 59, 67, 71, 79, 101, 103, 107, 127, 149, 151, 157, 167, 179, 211, 223, 227, 229, 233, 277, 307, 313, 331, 349, 379, 383, 397, 431, 439, 457, 461, 487, 523, 547, 557, 563, 577, 593, 599, 607, 613 ]

[ "nonn", "easy" ]

A187979

[ 0, 2, 7, 30, 144, 597, 2742, 12148, 54696, 247482, 1120330, 5099759, 23249035, 106285418, 486878283, 2234333944, 10271022863, 47283130811, 217962771486, 1005958652638, 4647869260260, 21496269109425, 99510938004788, 461047642206301, 2137763442289891, 9919444208575432...

[ "nonn" ]

A028739

[ 2, 5, 6, 7, 8, 11, 15, 18, 19, 20, 21, 24 ]

[ "nonn", "fini", "full" ]

A170777

[ 0, 1, 4224, 800442, 33587200, 610546875, 6531186816, 48447387604, 274886295552, 1270954437525, 5000050000000, 17261463251406, 53496817680384, 151437961161487, 396858124521600, 973098815625000, 2251801961168896 ]

[ "nonn", "easy" ]

A344200

[ 20, 60, 100, 140, 260, 900, 7980, 13500 ]

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

A059542

[ 2, 4, 7, 9, 12, 14, 17, 19, 21, 24, 26, 29, 31, 34, 36, 39, 41, 43, 46, 48, 51, 53, 56, 58, 61, 63, 65, 68, 70, 73, 75, 78, 80, 83, 85, 87, 90, 92, 95, 97, 100, 102, 105, 107, 109, 112, 114, 117, 119, 122, 124, 127...

[ "nonn", "easy" ]

A333680

[ 1, 2, 3, 8, 20, 48, 112, 272, 666, 1690, 4367, 11436, 30147, 80248, 215550, 583456, 1588956, 4351806, 11979481, 33127440, 91982688, 256354098, 716879847, 2010919560, 5656813275, 15954441334, 45106324389, 127809023944, 362897750254, 1032389760540, 294227859...

[ "nonn" ]

A370155

[ 1, 0, -6, 19, 17, -98, 39, 291, -264, -627, 773, 1525, -2000, -3895, 5606, 8784, -14325, -18125, 32856, 37727, -72557, -77316, 157044, 150945, -326602, -286320, 655760, 536800, -1287225, -986584, 2474251, 1770786, -4650780, -3122412, 8570426, 543...

[ "sign" ]

A015302

[ 1, 19141, 399683221, 8283038077141, 171765360605672930, 3.5617122044869906e+21, 7.3855689005170235e+25, 1.5314715244727117e+30, 3.1756593605318274e+34 ]

[ "nonn", "easy" ]

A159956

[ 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2...

[ "easy", "nonn" ]