N8Programs/oeis-enhanced · Datasets at Hugging Face

id stringlengths 7 11	seq listlengths 1 347	keywords listlengths 1 8 ⌀
A018847	[ 2, 5, 11, 101, 151, 181, 619, 659, 6229, 10501, 12821, 15551, 16091, 18181, 19861, 60209, 60509, 61519, 61819, 62129, 116911, 119611, 160091, 169691, 191161, 196961, 605509, 620029, 625529, 626929, 650059, 655559, 656959, 682289, 686989, 688889 ]	[ "nonn", "base" ]
A194374	[ 4, 8, 12, 16, 72, 76, 80, 84, 88, 144, 148, 152, 156, 160, 216, 220, 224, 228, 232, 288, 292, 296, 300, 304, 1292, 1296, 1300, 1304, 1308, 1364, 1368, 1372, 1376, 1380, 1436, 1440, 1444, 1448, 1452, 1508, 1512, 1516, 1520, 1524, ...	[ "nonn" ]
A317436	[ 0, 1, 1, 1, 7, 1, 2, 16, 16, 2, 3, 45, 61, 45, 3, 5, 120, 201, 201, 120, 5, 8, 333, 863, 1140, 863, 333, 8, 13, 928, 3666, 6964, 6964, 3666, 928, 13, 21, 2613, 14831, 39216, 67214, 39216, 14831, 2613, 21, 34, 7400, 61638, ...	[ "nonn", "tabl" ]
A039541	[ 69, 113, 213, 257, 357, 401, 501, 545, 645, 689, 729, 741, 753, 765, 777, 801, 813, 825, 828, 829, 830, 831, 832, 834, 835, 836, 838, 839, 849, 861, 933, 977, 1077, 1121, 1221, 1265, 1301, 1313, 1325, 1337, 1349, 1356, 1357, 1358,...	[ "nonn", "base", "easy" ]
A310862	[ 1, 4, 7, 14, 16, 23, 22, 33, 30, 40, 40, 50, 50, 57, 60, 65, 66, 74, 73, 82, 82, 92, 91, 100, 104, 107, 110, 117, 116, 126, 122, 136, 132, 143, 146, 147, 154, 160, 159, 170, 164, 180, 175, 184, 190, 187, 198, 201, 200, ...	[ "nonn" ]
A338948	[ 1, 30968, 490710246, 488689596200, 103480643539150, 8226360697111116, 332606338581801000, 8198553131754111000, 138483409168412330000, 1.7361111155434743e+21, 1.7100230356306263e+22, 1.380153597821169e+23 ]	[ "nonn", "easy" ]
A317898	[ 0, 2, 3, 13, 31, 54, 116, 342, 956, 2459, 6366, 16404, 42964, 112558, 294354, 768840, 2007738, 5246415, 13708041, 35818742, 93591255, 244546559, 638982739, 1669591197, 4362471879, 11398715036, 29783832169, 77822515690, 203343065801 ]	[ "nonn" ]
A002217	[ 2, 1, 1, 1, 1, 2, 1, 3, 3, 2, 1, 2, 1, 4, 4, 4, 1, 4, 1, 4, 3, 2, 1, 4, 3, 5, 4, 2, 1, 3, 1, 3, 5, 2, 3, 3, 1, 4, 5, 2, 1, 3, 1, 5, 2, 4, 1, 2, 5, 3, 5, 2, 1, 2, 5, 2, 3, 2, 1, 3, 1, 6, 2, 3...	[ "nonn" ]
A109602	[ 1, 4, 5, 6, 7, 8, 9, 19, 20, 29, 31, 97, 113, 181, 286, 419, 485, 670, 1216 ]	[ "nonn" ]
A136349	[ 6, 30, 2310, 30030, 304250263527210, 2.376874189634555e+34 ]	[ "nonn" ]
A263658	[ 0, 0, 1, 1, 2, 3, 7, 12, 27, 57, 128, 285, 659, 1518, 3561, 8389, 19936, 47607, 114397, 276018, 669035, 1627491, 3973106, 9728991, 23892779, 58828866, 145201423, 359182693, 890350290, 2211257973, 5501701981, 13711368630, 34225162345, 85555609119, 2...	[ "nonn" ]
A061416	[ 1, 2, 6, 7, 9, 11, 13, 24, 37, 505, 542, 579, 616, 653, 690, 727, 764, 801, 838, 875, 912, 949, 986, 1935, 2921, 4856, 11647, 16503, 148527, 181533, 214539, 219395, 235898, 252401, 268904, 285407, 301910, 318413, 334916, 351419, 367922,...	[ "nonn" ]
A142418	[ 5, 103, 397, 593, 691, 887, 1181, 1279, 1867, 2063, 2161, 2357, 2749, 3533, 3631, 4219, 4513, 5003, 5101, 5297, 5591, 5689, 6277, 6473, 6571, 7159, 7649, 8237, 8629, 8923, 9413, 9511, 10099, 10589, 10687, 10883, 11177, 11471, 11863, 12157...	[ "nonn", "easy" ]
A196088	[ 7, 9, 13, 14, 15, 16, 18, 19, 21, 23, 25, 26, 27, 27, 28, 29, 30, 32, 33, 35, 35, 36, 39, 40, 40, 41, 42, 45, 45, 45, 46, 47, 48, 49, 52, 53, 54, 54, 55, 56, 58, 59, 60, 63, 63, 63, 64, 65, 69, 70, 70, 71, 72, ...	[ "nonn" ]
A200701	[ 3, 3, 0, 8, 0, 1, 8, 0, 6, 1, 0, 5, 5, 8, 6, 9, 9, 1, 4, 3, 4, 0, 8, 7, 8, 0, 3, 1, 0, 8, 9, 9, 0, 9, 3, 5, 7, 4, 3, 3, 6, 3, 3, 8, 1, 6, 8, 1, 9, 8, 0, 7, 0, 4, 0, 2, 4, 4, 2, 3, 2, 0, 8, 5...	[ "nonn", "cons" ]
A373192	[ 731, 764, 1001, 1002, 1010, 1020, 1261, 1349, 1726, 2105, 3196, 3356, 3365, 3522, 3674, 3994, 4004, 4146, 4193, 4576, 4672, 4854, 4969, 5188, 5554, 5585, 5936, 6067, 6366, 6568, 6769, 6785, 6854, 6904, 7002, 7267, 7310, 7454, 7457, 7631, ...	[ "nonn", "base", "less" ]
A045289	[ 62, 187, 262, 287, 302, 307, 310, 311, 313, 317, 337, 437, 687, 812, 887, 912, 927, 932, 935, 936, 938, 942, 962, 1062, 1262, 1287, 1302, 1307, 1310, 1311, 1313, 1317, 1337, 1387, 1412, 1427, 1432, 1435, 1436, 1438, 1442, 1462 ]	[ "nonn", "base" ]
A229527	[ 1, 3, 7, 15, 22, 27, 37, 48, 61, 69, 85, 99, 118, 129, 142, 150, 157, 171, 181, 192, 205, 213, 220, 225, 235, 246, 259, 276, 292, 306, 316, 327, 340, 348, 364, 378, 397, 417, 430, 438, 454, 468, 487, 507, 520, 528, 544, 55...	[ "nonn", "base" ]
A036929	[ 0, 11, 101, 0, 10111, 101111, 1011001, 10010101, 100100111, 1000001011, 10000001101, 100000001111, 1000000111001, 10000000001011, 100000000100101, 1000000000011101, 10000000000001100, 100000000000100110 ]	[ "nonn", "base" ]
A295363	[ 1, 3, 12, 35, 77, 154, 287, 513, 890, 1513, 2546, 4241, 6997, 11478, 18747, 30531, 49620, 80531, 130571, 211564, 342641, 554757, 897998, 1453405, 2352105, 3806266, 6159183, 9966319, 16126432, 26093743, 42221231 ]	[ "nonn", "easy" ]
A364738	[ 1, 1, 0, -5, -10, 40, 245, -26, -4375, -11410, 53040, 377850, -12320, -7988194, -23011625, 106662595, 824671575, 64095550, -18490968680, -57052839001, 254513058375, 2098532784575, 419490572800, -48205987947600, -157458581103395, 666628546612606, 5824573247731250 ]	[ "sign" ]
A232872	[ 14, 45, 130, 311, 637, 1235, 2314, 4200, 7228, 11846, 18788, 29081, 44132, 65107, 93928, 132887, 185250, 254624, 345006, 461565, 610287, 798949, 1035882, 1330097, 1692861, 2137519, 2679053, 3333526, 4120225, 5060874, 6180451, 7506470, 9070729 ]	[ "nonn" ]
A156942	[ 11025, 99225, 245025, 275625, 342225, 540225, 893025, 1334025, 1863225, 2205225, 2480625, 3080025, 3186225, 3980025, 4601025, 4862025, 5832225, 6125625, 6890625, 7868025, 8037225, 8555625, 9272025, 9828225, 10595025, 10989225 ]	[ "nonn" ]
A295193	[ 1, 2, 2, 8, 14, 172, 932, 45936, 1084414, 155862512, 10382960972, 6939278572096, 2203360500122300, 4186526756621772300, 3.7473440082413685e+21, 3.5041787059691025e+25, 1.5627711137330338e+29, 4.1421226417575984e+33 ]	[ "nonn" ]
A034724	[ 1, 10, 160, 3520, 98560, 3351040, 134041600, 6165913600, 320627507200, 18596395417600, 1190169306726400, 83311851470848000, 6331700711784448000, 519199458366324740000, 4.568955233623658e+22, 4.294817919606238e+24, 4.294817919606238e+26 ]	[ "easy", "nonn" ]
A250862	[ 4096000, 128000000, 4000000000, 125000000000, 1750000000000, 24500000000000, 343000000000000, 2941225000000000, 25221004375000000, 216270112515625000, 1328763571296000000, 8163923382042624000, 50159145259269880000 ]	[ "nonn" ]
A163661	[ 0, 12, 35, 75, 138, 230, 357, 525, 740, 1008, 1335, 1727, 2190, 2730, 3353, 4065, 4872, 5780, 6795, 7923, 9170, 10542, 12045, 13685, 15468, 17400, 19487, 21735, 24150, 26738, 29505, 32457, 35600, 38940, 42483, 46235, 50202, 54390, 58805, ...	[ "nonn", "easy" ]
A105177	[ 3, 1, 4, 5, 9, 2, 6, 8, 7, 0, 31, 14, 41, 15, 59, 92, 26, 65, 53, 35, 58, 89, 97, 79, 93, 32, 23, 38, 84, 46, 62, 64, 43, 33, 83, 27, 95, 50, 28, 88, 19, 71, 16, 69, 39, 99, 37, 75, 51, 10, 82, 20, 74, 49, 94...	[ "base", "nonn", "look" ]
A019125	[ 0, 0, 5, 6, 9, 35, 59, 112, 283, 706, 1478, 3397, 8871, 21251, 50341, 130710, 332916, 841255, 2194862, 5755951, 15061491, 39776556, 105554692, 280218339, 745466324, 1988298146, 5308302165, 14184125616, 37957283062 ]	[ "nonn", "more" ]
A000370	[ 1, 2, 4, 14, 222, 616126, 200253952527184, 2.637357160288266e+32, 5.60903830088376e+69 ]	[ "nonn", "nice" ]
A222956	[ 4, 4, 16, 16, 64, 64, 400, 324, 2704, 2304, 23104, 19044, 222784, 183184, 2310400, 1937664, 25441936, 21641104, 292820544, 252301456, 3481944064, 3038655376, 42543187600, 37528988176, 531580977216, 473355008064, 6768530689600 ]	[ "nonn" ]
A269352	[ 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1...	[ "nonn", "easy" ]
A380427	[ 1, -1, -3, -19, -211, -3301, -66581, -1643587, -47986247, -1617313033, -61796668969, -2639583958111, -124635062782187, -6446216079166189, -362427406400015170, -22008570202561167000, -1.4355605355634934e+21, -1.0010018567545785e+23, -7.43048127260156e+24 ]	[ "sign" ]
A163470	[ 3, 15, 81, 453, 2571, 14679, 84009, 481245, 2757843, 15806559, 90600513, 519318837, 2976744027, 17062807335, 97804786329, 560621795277, 3213512139939, 18420013780911, 105584452428081, 605215440272805 ]	[ "nonn", "easy" ]
A145251	[ 1, 49, 14749, 27270901, 309747333007, 21611597821416252, 9.262695628779625e+21, 2.4387041941030584e+28, 3.944137731055997e+35 ]	[ "nonn" ]
A306468	[ 1, 1, 1, 2, 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 3, 2, 4, 3, 4, 2, 3, 4, 4, 2, 5, 4, 2, 5, 3, 6, 2, 3, 5, 6, 3, 4, 5, 5, 4, 3, 6, 4, 5, 5, 5, 5, 5, 2, 7, 6, 5, 5, 3, 6, 6, 4, 6, 8, 3, 6, 5, 7, 5, 3...	[ "nonn" ]
A262975	[ 2, 3, 4, 8, 12, 16, 25, 32, 36, 56, 64, 96, 102, 112, 128, 200, 240, 256, 267, 344, 356, 384, 512, 576, 598, 636, 656, 936, 1024, 1040, 1048, 1128, 1344, 1368, 1480, 1952, 2048, 2248, 2800, 2865, 2884, 2928, 3072, 3200, 3360, ...	[ "nonn" ]
A186997	[ 1, 1, 4, 19, 104, 614, 3816, 24595, 162896, 1101922, 7580904, 52878654, 373100272, 2658188524, 19096607120, 138182654595, 1006202473888, 7367648586954, 54214472633064, 400698865376842, 2973344993337520, 22142778865313364 ]	[ "nonn", "easy" ]
A325758	[ 1, 1, 2, 1, 1, 3, 2, 1, 3, 1, 3, 3, 1, 1, 1, 5, 3, 1, 3, 1, 1, 2, 2, 1, 4, 1, 1, 4, 4, 1, 5, 2, 1, 2, 2, 1, 3, 1, 1, 1, 6, 2, 1, 1, 2, 3, 1, 1, 3, 1, 5, 2, 1, 1, 4, 1, 2, 1, 5, 1, 2, 2, 1, 3...	[ "nonn", "tabf" ]
A080630	[ 1, 12, 114, 924, 6539, 39528, 199926, 806136, 2761740, 8656152, 22334112, 32420448, 18780864, 2166720, 6624 ]	[ "nonn", "fini", "full" ]
A235545	[ 988, 17658, 429443, 9618173, 229990437, 4902247081, 99992110087, 1844719926176, 31896122665112, 509962551465235, 7677165540339722, 108748418549947620, 1463930492980910800, 18776966394074590000, 230866934864995320000 ]	[ "nonn" ]
A167819	[ 9, 10, 12, 14, 16, 17, 18, 20, 22, 23, 24, 25, 27, 31, 37, 39, 41, 43, 49, 53, 54, 62, 67, 71, 74, 77, 78, 79, 81, 82, 84, 85, 90, 91, 93, 94, 108, 109, 111, 112, 117, 118, 120, 122, 124, 125, 130, 131, 133, 134, 148...	[ "base", "nonn" ]
A140409	[ 2, 3, 7, 11, 19, 23, 29, 31, 41, 43, 47, 59, 67, 71, 79, 83, 101, 103, 107, 127, 131, 139, 151, 163, 167, 179, 181, 191, 199, 211, 223, 227, 229, 239, 241, 251, 263, 271, 281, 283, 307, 311, 331, 347, 349, 359, 367, 379, ...	[ "nonn" ]
A212430	[ 384, 840, 8676, 33300, 34980, 37044, 39984, 42024, 50604, 53760, 55056, 61680, 64380, 71064, 83520, 88176, 97644, 103740, 120204, 129840, 133896, 148764, 154524, 160416, 168120, 173064, 184800, 188880, 199056, 207984, 234744, 266640, 292116, 307044, ...	[ "nonn" ]
A232367	[ 161, 210039, 175284259, 143280358783, 118759183620445, 98411994699167310, 81520970965131920000, 6.753029905000226e+22, 5.594130479731035e+25, 4.6341085509706615e+28, 3.8388369552787603e+31 ]	[ "nonn" ]
A147850	[ 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0...	[ "easy", "nonn", "base", "less" ]
A304367	[ 19, 28, 29, 37, 38, 39, 46, 47, 48, 49, 55, 56, 57, 58, 59, 64, 65, 66, 67, 68, 69, 73, 74, 75, 76, 77, 78, 79, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99, 109, 118, 119, 127, 128, 129, 136,...	[ "nonn", "base" ]
A156048	[ 32377, 10908137, 34030327, 4860035567, 7656800897, 13398374537, 41162676047, 49277997407, 169906146727, 429221023247, 517971170207, 1587472376807, 1692526508927, 2687542461767, 2827976112047, 2918988711407, 3538852646177, 3843606175697, 3868058416007, 4090897510247 ]	[ "nonn" ]
A380923	[ 25, 245, 1250, 2401, 4235, 12250, 41503, 62500, 73205, 120050, 136045, 138985, 211750, 215215, 612500, 717409, 1176490, 1333241, 1362053, 1856465, 2075150, 2109107, 2351635, 2402455, 3125000, 3660250, 3720145, 4561235, 5330605, 5535985, 6002500, 6802250,...	[ "nonn", "easy" ]
A267017	[ 0, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9, 1, 5, 6, 7, 2, 3, 4, 8, 9...	[ "nonn", "base", "easy" ]
A218656	[ 1, 2, 3, 2, 3, 3, 1, 5, 4, 4, 4, 5, 4, 7, 6, 5, 3, 10, 4, 9, 8, 4, 9, 6, 7, 11, 7, 5, 11, 9, 9, 9, 11, 4, 14, 14, 9, 8, 9, 7, 11, 8, 12, 12, 10, 9, 11, 17, 10, 12, 16, 7, 13, 14, 8, 15, 9, 11, 23, 1...	[ "nonn" ]
A170601	[ 1, 16, 240, 3600, 54000, 810000, 12150000, 182250000, 2733750000, 41006250000, 615093750000, 9226406250000, 138396093750000, 2075941406250000, 31139121093750000, 467086816406250000, 7006302246093750000 ]	[ "nonn" ]
A143680	[ 3, 4, 11, 16, 320, 438, 1302, 1594, 3324, 8235, 9417, 17950, 24759, 27349, 36252, 55002, 78861, 84711, 115866, 138056, 146440, 190374, 220857, 277626, 370572, 417629, 435933, 488096, 507799, 565157, 850338, 930999, 1072092, 1107343 ]	[ "nonn" ]
A299139	[ 3, 236, 6205, 143548, 3426869, 81988764, 1958821107, 46801360032, 1118229413140, 26717976955184, 638375195180545, 15252759731195844, 364435654101670340, 8707496129258581000, 208049042144382520000, 4.970935766069112e+21 ]	[ "nonn" ]
A036661	[ 1, 1, 2, 4, 8, 15, 32, 66, 142, 306, 672, 1483, 3316, 7446, 16859, 38353, 87735, 201510, 464801, 1075744, 2498053, 5817576, 13585231, 31801732, 74615404, 175433624, 413281276, 975355639, 2305763635, 5459480822, 12945857671 ]	[ "nonn", "easy" ]
A007476	[ 1, 1, 1, 2, 4, 9, 23, 65, 199, 654, 2296, 8569, 33825, 140581, 612933, 2795182, 13298464, 65852873, 338694479, 1805812309, 9963840219, 56807228074, 334192384460, 2026044619017, 12642938684817, 81118550133657, 534598577947465, 3615474317688778, 2507006342159748...	[ "nonn", "eigen", "nice" ]
A113268	[ 1, -8, 154, -3491, 88363, -2391695, 67758517, -1984135184, 59572675846, -1824065741672, 56739965057524, -1788027005117150, 56960705737368620, -1831391418128245500, 59351217395117650000, -1.9367313951370298e+21, 6.3581744945624045e+22 ]	[ "sign", "easy" ]
A080814	[ 1, 12, 1221, 12212112, 1221211221121221, 1.2212112211212212e+31, 1.2212112211212212e+63 ]	[ "nonn" ]
A289520	[ 0, 1, 9, 10, 36, 37, 45, 46, 100, 101, 109, 110, 136, 137, 145, 146, 225, 226, 234, 235, 261, 262, 270, 271, 325, 326, 334, 335, 361, 362, 370, 371, 441, 442, 450, 451, 477, 478, 486, 487, 541, 542, 550, 551, 577, 578, 586, ...	[ "nonn" ]
A056089	[ 1, 333, 623, 956, 1145, 1689, 2819, 2820, 2834, 4025, 4039, 4040, 5170, 5714, 5903, 6236, 6526, 6858, 6860, 7192, 7482, 7815, 8004, 8548, 9678, 9679, 9693, 10884, 10898, 10899, 12029, 12573, 12762, 13095, 13385, 13717, 13719, 14051, 14341, ...	[ "nonn" ]
A354115	[ 1, -2, 1, -4, 29, -244, 1583, -10368, 124553, -2029776, 20127867, -180343296, 3978820221, -75977108544, 914656587063, -15574206480384, 370244721585681, -8082505243732224, 162968423791332350, -3082360882836013000, 82014901819948740000, -2.501342802748969e+21, 5.83117719385...	[ "sign" ]
A238319	[ 51, 1867, 41046, 721939, 13265123, 261676376, 5206684654, 102053610873, 1987295524193, 38770223731701, 758012281434166, 14822685184195262, 289709710098420160, 5661329642092072000, 110637907561833460000 ]	[ "nonn" ]
A238384	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1, 2, 3, 3, 2, 1, 1, 1, 1, 2, 3, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 6, 4, 3, 2...	[ "easy", "nonn", "tabl" ]
A352150	[ 0, 1, -3, 2, -6, -1, -5, 132, 1624, 17145, 174509, 1789842, 18659146, 196678143, 2057524963, 20460314396, 171030108768, 529697015489, -27050118799923, -1079945984126798, -30289996673371256, -765129844741436800, -18575997643525740000, -444653043972658040000 ]	[ "sign" ]
A111102	[ 1, 5, 9, 10, 11, 15, 16, 20, 24, 25, 29, 33, 34, 35, 39, 40, 41, 45, 49, 50, 54, 55, 56, 60, 61, 65, 69, 70, 71, 75, 76, 77, 81, 82, 86, 90, 91, 95, 99, 100, 101, 105, 106, 110, 114, 115, 119, 120, 121, 125, 126, 1...	[ "easy", "nonn" ]
A274207	[ 1, 2, 2, 2, 2, 4, 4, 2, 4, 7, 1, 6, 6, 10, 4, 2, 9, 13, 14, 12, 2, 8, 13, 22, 18, 24, 10, 2, 2, 15, 27, 40, 29, 38, 28, 12, 2, 10, 24, 45, 65, 59, 58, 56, 40, 16, 4, 2, 23, 52, 84, 104, 112, 100, 95, 88, ...	[ "nonn", "tabf" ]
A325117	[ 2, 4, 14, 0, 6, 16, 12, 18, 64, 24, 40, 182, 36, 48, 1024, 60, 198, 348, 9050, 25180, 25658650, 584558736346, 4096, 192, 144, 120, 918, 5430, 65536, 180, 17298, 262144, 240, 6640, 4413038, 576, 3072, 4194304, 360, 3400, 19548, 134044,...	[ "nonn", "tabf", "more" ]
A058053	[ 1, 1, 3, 6, 11, 18, 33, 49, 78, 117, 171, 242, 346, 469, 640, 855, 1127, 1463, 1896, 2405, 3045, 3813, 4736, 5831, 7156, 8684, 10507, 12627, 15092, 17935, 21249, 25004, 29341, 34272, 39875, 46207, 53407, 61446, 70528, 80682, 92026, 10...	[ "nonn" ]
A161940	[ 3, 17, 101, 619, 3867, 24433, 155389, 991931, 6345363, 40639217, 260448821, 1669786219, 10707539307, 68670310033, 440429696269, 2824879831931, 18118915305123, 116216916916817, 745434117150341, 4781352082416619 ]	[ "nonn" ]
A207028	[ 10, 100, 270, 1035, 3315, 8280, 23400, 56814, 136114, 322834, 725005, 1627260, 3560880, 7664285, 16349062, 34340640, 71524992, 147574233, 301825437, 613141606, 1236720905, 2479598284, 4944012260, 9806225404, 19359765906 ]	[ "nonn" ]
A380416	[ 18, 83, 258, 627, 1298, 2403, 4098, 6563, 10002 ]	[ "nonn", "more" ]
A152855	[ 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2, 0, 1, 2, 0, 2...	[ "easy", "nonn" ]
A235632	[ 2, 3, 11, 13, 31, 41, 53, 73, 101, 131, 151, 223, 281, 313, 353, 401, 463, 521, 523, 541, 593, 661, 701, 733, 773, 941, 983, 1013, 1063, 1091, 1093, 1123, 1153, 1193, 1201, 1321, 1381, 1423, 1471, 1481, 1483, 1571, 1583, 1601, 1...	[ "nonn", "base" ]
A372367	[ 3, 6, 6, 4, 0, 4, 0, 2, 4, 7, 8, 3, 0, 5, 7, 5, 9, 9, 6, 7, 3, 6, 2, 3, 3, 2, 4, 1, 8, 3, 9, 4, 7, 8, 5, 8, 9, 7, 0, 3, 5, 7, 0, 9, 2, 2, 2, 9, 9, 8, 5, 7, 7, 4, 4, 6, 2, 2, 7, 6, 0, 2, 3, 2...	[ "nonn", "cons" ]
A353916	[ 1, 2, 6, 3, 12, 4, 10, 5, 15, 9, 18, 8, 14, 7, 21, 27, 24, 16, 20, 25, 30, 32, 22, 11, 33, 66, 36, 42, 28, 49, 35, 70, 40, 60, 45, 81, 39, 13, 26, 64, 34, 17, 51, 102, 48, 78, 52, 128, 38, 19, 57, 114, 54, 84, ...	[ "nonn" ]
A038054	[ 1, 2, 4, 12, 80, 800, 10752, 181888, 3714048, 88915968, 2442936320, 75776712704, 2619618852864, 99879826948096, 4163954627051520, 188441538173337600, 9200521811924615000, 482067547423055540000, 2.698093827291225e+22 ]	[ "nonn" ]
A236921	[ 0, 0, 1, 2, 10, 32, 232, 992, 10096, 53408, 727360, 4569536, 79501696, 578101376, 12337163008, 101945840384, 2582987522560, 23913303638528, 701604503968768, 7194776722623488, 239847438803052540, 2698941227297687600, 100744097104231200000, 1.234263151585972e+21, 5.0993...	[ "nonn" ]
A119793	[ 1, 2, 3, 4, 6, 7, 10, 12, 21, 28, 30, 40, 77, 105, 175, 210, 400, 462, 495, 560, 990, 1275, 1540, 3213, 7140, 10626, 15400, 27456, 32725, 49896, 58905, 77616, 144144, 248976 ]	[ "nonn" ]
A109898	[ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 40, 0, 0, 3003, 105, 0, 71680, 0, 24192, 2078505, 0, 0, 330, 4216455243, 0, 2788660875, 39536640, 0, 256256, 0, 16380, 6153560492625, 0, 276348105, 15841280, 0, 0, 20228646742486876, 1116288, 0, 119070...	[ "nonn" ]
A252099	[ 4581, 4866, 5087, 8941, 21405, 50222, 120128, 312242, 762514, 1878978, 4952226, 12363575, 31123465, 82567495, 210479834, 540052088, 1440608932, 3742122672, 9761698780, 26154115812, 69025530491, 182512931249, 490665213507 ]	[ "nonn" ]
A361430	[ 1, 0, 0, 1, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 4, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5...	[ "nonn", "easy", "mult" ]
A229504	[ 0, 6, 48, 288, 1536, 7680, 36864, 172032, 786432, 3538944, 15728640, 69206016, 301989888, 1308622848, 5637144576, 24159191040, 103079215104, 438086664192, 1855425871872, 7834020347904, 32985348833280, 138538465099776 ]	[ "nonn" ]
A336831	[ 1, 1, 1, 10, 4359, 91406876, 111657668637280, 1.1436881770074767e+22, 1.375601555206002e+32, 2.6012262789321377e+44, 9.978179629343084e+58 ]	[ "nonn" ]
A189113	[ 32, 1024, 15200, 207936, 3179520, 49561600, 769236480, 11893211136, 184082644992, 2851396977664, 44168388925440, 684087791325184, 10595270714362880, 164105309987946500, 2541771994561622000 ]	[ "nonn" ]
A352206	[ 1, 2, 8, 24, 64, 160, 448, 896, 2304, 4608, 11264, 24576, 53248, 106496, 245760, 491520, 1114112, 2228224 ]	[ "nonn", "more" ]
A018947	[ 0, 11, 32, 285, 1349, 9222, 54014, 353731, 2251144, 14926216, 99321087, 674855955, 4635871503, 32311508644, 227740491756 ]	[ "nonn", "more" ]
A199551	[ 1, 2, 33, 51, 69, 105, 195, 250, 294, 1250, 4913, 9583, 13778, 48778, 65603, 83521, 111265, 228939, 651695, 984150, 1414562, 1857848, 2668626, 5643110, 6295726, 10091354 ]	[ "nonn", "more" ]
A259021	[ 1, 6, 10, 14, 26, 74, 94, 134, 146, 206, 314, 326, 386, 466, 634, 674, 1094, 1174, 1294, 1306, 1354, 1366, 1546, 1654, 1766, 1774, 1894, 1966, 2026, 2126, 2174, 2326, 2594, 2654, 2746, 2974, 2986, 3046, 3106, 3134, 3214, 3254, 3274,...	[ "nonn" ]
A059219	[ 1, 1, 2, 5, 15, 55, 239, 1199, 6810, 43108, 300731, 2291162, 18923688, 168402163, 1606199354, 16345042652, 176758631046, 2024225038882, 24471719797265, 311446235344127, 4162172487402027, 58275220793611960, 853045299274146000 ]	[ "easy", "nonn", "nice" ]
A199121	[ 1, 1, 0, 0, 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 5, 6, 6, 7, 8, 7, 8, 10, 11, 11, 12, 14, 14, 15, 17, 18, 20, 21, 22, 24, 25, 27, 30, 31, 32, 35, 37, 39, 41, 44, 45, 48, 52, 53, 56, 60, 62, 66, 69, 72, 76, 81...	[ "nonn" ]
A325775	[ 102, 25, 20, 27, 22, 29, 24, 90, 26, 0, 104, 10, 40, 30, 42, 49, 44, 70, 28, 3, 23, 5, 12, 7, 2, 9, 4, 19, 6, 14, 106, 21, 60, 32, 62, 47, 46, 50, 48, 13, 52, 15, 45, 17, 34, 37, 36, 39, 16, 38, 108, 41, 80, 43...	[ "sign", "base" ]
A070126	[ 3, 6, 9, 16, 22, 34, 35, 43, 46, 63, 84, 109, 124, 159, 170, 189, 201, 234, 286, 297, 350, 352, 382, 410, 450, 478, 479, 515, 527, 597, 629, 688, 708, 811, 817, 868, 900, 981, 1021, 1033, 1105, 1153, 1284, 1386, 1419, 1425 ]	[ "nonn" ]
A162110	[ 2, 4, 8, 21, 53, 145, 405, 1180, 3562, 11030, 35306, 115338, 387443, 1326992, 4650201, 16604351, 60443887, 223971602, 844095896, 3234044019, 12582749734, 49703821584, 199149007691, 809153896365, 3331563584486 ]	[ "nonn" ]
A042176	[ 24, 25, 99, 619, 718, 3491, 4209, 7700, 11909, 43427, 98763, 1129820, 1228583, 19558565, 20787148, 40345713, 101478574, 243302861, 344781435, 588084296, 9166045875, 9754130171, 116461477756 ]	[ "nonn", "cofr", "frac", "easy", "less" ]
A376281	[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 2, 1, 1, 2, 1, 1, 1, 1, 3, 1, 2, 1, 1, 1, 4, 1, 1, 2, 1, 3, 3, 1, 1, 3, 2, 1, 1, 1, 2, 1, 1, 1, 3, 1, 2...	[ "nonn" ]
A377883	[ 1, 1, 1, 7, 34, 126, 496, 2052, 8264, 32776, 130816, 524272, 2098144, 8388576, 33550336, 134217792, 536887424, 2147483776, 8589869056, 34359738112, 137439215104, 549755813376, 2199022206976, 8796093023232, 35184376285184, 140737488357376, 562949936644096 ]	[ "nonn", "easy" ]
A157401	[ 1, 1, 1, 1, 1, 3, 3, 1, 9, 12, 15, 1, 25, 60, 75, 105, 1, 75, 330, 450, 630, 945, 1, 231, 1680, 3675, 4410, 6615, 10395, 1, 763, 9408, 30975, 41160, 52920, 83160, 135135, 1, 2619, 56952, 233415, 489510, 555660, 748440, 1216215 ]	[ "easy", "nonn", "tabl" ]
A242728	[ 1, 2, 7, 25, 93, 346, 1291, 4817, 17977, 67090, 250383, 934441, 3487381, 13015082, 48572947, 181276705, 676533873, 2524858786, 9422901271, 35166746297, 131244083917, 489809589370, 1827994273563, 6822167504881, 25460675745961, 95020535478962 ]	[ "nonn", "easy" ]
A231227	[ 1, 2, 2, 3, 4, 3, 6, 8, 8, 6, 11, 17, 21, 17, 11, 22, 45, 54, 54, 45, 22, 43, 103, 185, 182, 185, 103, 43, 86, 264, 552, 812, 812, 552, 264, 86, 171, 676, 1799, 2962, 4298, 2962, 1799, 676, 171, 342, 1724, 5900, 12179, ...	[ "nonn", "tabl" ]
A093421	[ 1, 1, 3, 1, 1, 1, 1, 1, 1, 5, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 11, 1, 3, 1, 1, 1, 1, 1, 1, ...	[ "nonn", "easy", "frac", "tabl", "less" ]

A018847

[ 2, 5, 11, 101, 151, 181, 619, 659, 6229, 10501, 12821, 15551, 16091, 18181, 19861, 60209, 60509, 61519, 61819, 62129, 116911, 119611, 160091, 169691, 191161, 196961, 605509, 620029, 625529, 626929, 650059, 655559, 656959, 682289, 686989, 688889 ]

[ "nonn", "base" ]

A194374

[ 4, 8, 12, 16, 72, 76, 80, 84, 88, 144, 148, 152, 156, 160, 216, 220, 224, 228, 232, 288, 292, 296, 300, 304, 1292, 1296, 1300, 1304, 1308, 1364, 1368, 1372, 1376, 1380, 1436, 1440, 1444, 1448, 1452, 1508, 1512, 1516, 1520, 1524, ...

[ "nonn" ]

A317436

[ 0, 1, 1, 1, 7, 1, 2, 16, 16, 2, 3, 45, 61, 45, 3, 5, 120, 201, 201, 120, 5, 8, 333, 863, 1140, 863, 333, 8, 13, 928, 3666, 6964, 6964, 3666, 928, 13, 21, 2613, 14831, 39216, 67214, 39216, 14831, 2613, 21, 34, 7400, 61638, ...

[ "nonn", "tabl" ]

A039541

[ 69, 113, 213, 257, 357, 401, 501, 545, 645, 689, 729, 741, 753, 765, 777, 801, 813, 825, 828, 829, 830, 831, 832, 834, 835, 836, 838, 839, 849, 861, 933, 977, 1077, 1121, 1221, 1265, 1301, 1313, 1325, 1337, 1349, 1356, 1357, 1358,...

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

A310862

[ 1, 4, 7, 14, 16, 23, 22, 33, 30, 40, 40, 50, 50, 57, 60, 65, 66, 74, 73, 82, 82, 92, 91, 100, 104, 107, 110, 117, 116, 126, 122, 136, 132, 143, 146, 147, 154, 160, 159, 170, 164, 180, 175, 184, 190, 187, 198, 201, 200, ...

[ "nonn" ]

A338948

[ 1, 30968, 490710246, 488689596200, 103480643539150, 8226360697111116, 332606338581801000, 8198553131754111000, 138483409168412330000, 1.7361111155434743e+21, 1.7100230356306263e+22, 1.380153597821169e+23 ]

[ "nonn", "easy" ]

A317898

[ 0, 2, 3, 13, 31, 54, 116, 342, 956, 2459, 6366, 16404, 42964, 112558, 294354, 768840, 2007738, 5246415, 13708041, 35818742, 93591255, 244546559, 638982739, 1669591197, 4362471879, 11398715036, 29783832169, 77822515690, 203343065801 ]

[ "nonn" ]

A002217

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

[ "nonn" ]

A109602

[ 1, 4, 5, 6, 7, 8, 9, 19, 20, 29, 31, 97, 113, 181, 286, 419, 485, 670, 1216 ]

[ "nonn" ]

A136349

[ 6, 30, 2310, 30030, 304250263527210, 2.376874189634555e+34 ]

[ "nonn" ]

A263658

[ 0, 0, 1, 1, 2, 3, 7, 12, 27, 57, 128, 285, 659, 1518, 3561, 8389, 19936, 47607, 114397, 276018, 669035, 1627491, 3973106, 9728991, 23892779, 58828866, 145201423, 359182693, 890350290, 2211257973, 5501701981, 13711368630, 34225162345, 85555609119, 2...

[ "nonn" ]

A061416

[ 1, 2, 6, 7, 9, 11, 13, 24, 37, 505, 542, 579, 616, 653, 690, 727, 764, 801, 838, 875, 912, 949, 986, 1935, 2921, 4856, 11647, 16503, 148527, 181533, 214539, 219395, 235898, 252401, 268904, 285407, 301910, 318413, 334916, 351419, 367922,...

[ "nonn" ]

A142418

[ 5, 103, 397, 593, 691, 887, 1181, 1279, 1867, 2063, 2161, 2357, 2749, 3533, 3631, 4219, 4513, 5003, 5101, 5297, 5591, 5689, 6277, 6473, 6571, 7159, 7649, 8237, 8629, 8923, 9413, 9511, 10099, 10589, 10687, 10883, 11177, 11471, 11863, 12157...

[ "nonn", "easy" ]

A196088

[ 7, 9, 13, 14, 15, 16, 18, 19, 21, 23, 25, 26, 27, 27, 28, 29, 30, 32, 33, 35, 35, 36, 39, 40, 40, 41, 42, 45, 45, 45, 46, 47, 48, 49, 52, 53, 54, 54, 55, 56, 58, 59, 60, 63, 63, 63, 64, 65, 69, 70, 70, 71, 72, ...

[ "nonn" ]

A200701

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

[ "nonn", "cons" ]

A373192

[ 731, 764, 1001, 1002, 1010, 1020, 1261, 1349, 1726, 2105, 3196, 3356, 3365, 3522, 3674, 3994, 4004, 4146, 4193, 4576, 4672, 4854, 4969, 5188, 5554, 5585, 5936, 6067, 6366, 6568, 6769, 6785, 6854, 6904, 7002, 7267, 7310, 7454, 7457, 7631, ...

[ "nonn", "base", "less" ]

A045289

[ 62, 187, 262, 287, 302, 307, 310, 311, 313, 317, 337, 437, 687, 812, 887, 912, 927, 932, 935, 936, 938, 942, 962, 1062, 1262, 1287, 1302, 1307, 1310, 1311, 1313, 1317, 1337, 1387, 1412, 1427, 1432, 1435, 1436, 1438, 1442, 1462 ]

[ "nonn", "base" ]

A229527

[ 1, 3, 7, 15, 22, 27, 37, 48, 61, 69, 85, 99, 118, 129, 142, 150, 157, 171, 181, 192, 205, 213, 220, 225, 235, 246, 259, 276, 292, 306, 316, 327, 340, 348, 364, 378, 397, 417, 430, 438, 454, 468, 487, 507, 520, 528, 544, 55...

[ "nonn", "base" ]

A036929

[ 0, 11, 101, 0, 10111, 101111, 1011001, 10010101, 100100111, 1000001011, 10000001101, 100000001111, 1000000111001, 10000000001011, 100000000100101, 1000000000011101, 10000000000001100, 100000000000100110 ]

[ "nonn", "base" ]

A295363

[ 1, 3, 12, 35, 77, 154, 287, 513, 890, 1513, 2546, 4241, 6997, 11478, 18747, 30531, 49620, 80531, 130571, 211564, 342641, 554757, 897998, 1453405, 2352105, 3806266, 6159183, 9966319, 16126432, 26093743, 42221231 ]

[ "nonn", "easy" ]

A364738

[ 1, 1, 0, -5, -10, 40, 245, -26, -4375, -11410, 53040, 377850, -12320, -7988194, -23011625, 106662595, 824671575, 64095550, -18490968680, -57052839001, 254513058375, 2098532784575, 419490572800, -48205987947600, -157458581103395, 666628546612606, 5824573247731250 ]

[ "sign" ]

A232872

[ 14, 45, 130, 311, 637, 1235, 2314, 4200, 7228, 11846, 18788, 29081, 44132, 65107, 93928, 132887, 185250, 254624, 345006, 461565, 610287, 798949, 1035882, 1330097, 1692861, 2137519, 2679053, 3333526, 4120225, 5060874, 6180451, 7506470, 9070729 ]

[ "nonn" ]

A156942

[ 11025, 99225, 245025, 275625, 342225, 540225, 893025, 1334025, 1863225, 2205225, 2480625, 3080025, 3186225, 3980025, 4601025, 4862025, 5832225, 6125625, 6890625, 7868025, 8037225, 8555625, 9272025, 9828225, 10595025, 10989225 ]

[ "nonn" ]

A295193

[ 1, 2, 2, 8, 14, 172, 932, 45936, 1084414, 155862512, 10382960972, 6939278572096, 2203360500122300, 4186526756621772300, 3.7473440082413685e+21, 3.5041787059691025e+25, 1.5627711137330338e+29, 4.1421226417575984e+33 ]

[ "nonn" ]

A034724

[ 1, 10, 160, 3520, 98560, 3351040, 134041600, 6165913600, 320627507200, 18596395417600, 1190169306726400, 83311851470848000, 6331700711784448000, 519199458366324740000, 4.568955233623658e+22, 4.294817919606238e+24, 4.294817919606238e+26 ]

[ "easy", "nonn" ]

A250862

[ 4096000, 128000000, 4000000000, 125000000000, 1750000000000, 24500000000000, 343000000000000, 2941225000000000, 25221004375000000, 216270112515625000, 1328763571296000000, 8163923382042624000, 50159145259269880000 ]

[ "nonn" ]

A163661

[ 0, 12, 35, 75, 138, 230, 357, 525, 740, 1008, 1335, 1727, 2190, 2730, 3353, 4065, 4872, 5780, 6795, 7923, 9170, 10542, 12045, 13685, 15468, 17400, 19487, 21735, 24150, 26738, 29505, 32457, 35600, 38940, 42483, 46235, 50202, 54390, 58805, ...

[ "nonn", "easy" ]

A105177

[ 3, 1, 4, 5, 9, 2, 6, 8, 7, 0, 31, 14, 41, 15, 59, 92, 26, 65, 53, 35, 58, 89, 97, 79, 93, 32, 23, 38, 84, 46, 62, 64, 43, 33, 83, 27, 95, 50, 28, 88, 19, 71, 16, 69, 39, 99, 37, 75, 51, 10, 82, 20, 74, 49, 94...

[ "base", "nonn", "look" ]

A019125

[ 0, 0, 5, 6, 9, 35, 59, 112, 283, 706, 1478, 3397, 8871, 21251, 50341, 130710, 332916, 841255, 2194862, 5755951, 15061491, 39776556, 105554692, 280218339, 745466324, 1988298146, 5308302165, 14184125616, 37957283062 ]

[ "nonn", "more" ]

A000370

[ 1, 2, 4, 14, 222, 616126, 200253952527184, 2.637357160288266e+32, 5.60903830088376e+69 ]

[ "nonn", "nice" ]

A222956

[ 4, 4, 16, 16, 64, 64, 400, 324, 2704, 2304, 23104, 19044, 222784, 183184, 2310400, 1937664, 25441936, 21641104, 292820544, 252301456, 3481944064, 3038655376, 42543187600, 37528988176, 531580977216, 473355008064, 6768530689600 ]

[ "nonn" ]

A269352

[ 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1...

[ "nonn", "easy" ]

A380427

[ 1, -1, -3, -19, -211, -3301, -66581, -1643587, -47986247, -1617313033, -61796668969, -2639583958111, -124635062782187, -6446216079166189, -362427406400015170, -22008570202561167000, -1.4355605355634934e+21, -1.0010018567545785e+23, -7.43048127260156e+24 ]

[ "sign" ]

A163470

[ 3, 15, 81, 453, 2571, 14679, 84009, 481245, 2757843, 15806559, 90600513, 519318837, 2976744027, 17062807335, 97804786329, 560621795277, 3213512139939, 18420013780911, 105584452428081, 605215440272805 ]

[ "nonn", "easy" ]

A145251

[ 1, 49, 14749, 27270901, 309747333007, 21611597821416252, 9.262695628779625e+21, 2.4387041941030584e+28, 3.944137731055997e+35 ]

[ "nonn" ]

A306468

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

[ "nonn" ]

A262975

[ 2, 3, 4, 8, 12, 16, 25, 32, 36, 56, 64, 96, 102, 112, 128, 200, 240, 256, 267, 344, 356, 384, 512, 576, 598, 636, 656, 936, 1024, 1040, 1048, 1128, 1344, 1368, 1480, 1952, 2048, 2248, 2800, 2865, 2884, 2928, 3072, 3200, 3360, ...

[ "nonn" ]

A186997

[ 1, 1, 4, 19, 104, 614, 3816, 24595, 162896, 1101922, 7580904, 52878654, 373100272, 2658188524, 19096607120, 138182654595, 1006202473888, 7367648586954, 54214472633064, 400698865376842, 2973344993337520, 22142778865313364 ]

[ "nonn", "easy" ]

A325758

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

[ "nonn", "tabf" ]

A080630

[ 1, 12, 114, 924, 6539, 39528, 199926, 806136, 2761740, 8656152, 22334112, 32420448, 18780864, 2166720, 6624 ]

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

A235545

[ 988, 17658, 429443, 9618173, 229990437, 4902247081, 99992110087, 1844719926176, 31896122665112, 509962551465235, 7677165540339722, 108748418549947620, 1463930492980910800, 18776966394074590000, 230866934864995320000 ]

[ "nonn" ]

A167819

[ 9, 10, 12, 14, 16, 17, 18, 20, 22, 23, 24, 25, 27, 31, 37, 39, 41, 43, 49, 53, 54, 62, 67, 71, 74, 77, 78, 79, 81, 82, 84, 85, 90, 91, 93, 94, 108, 109, 111, 112, 117, 118, 120, 122, 124, 125, 130, 131, 133, 134, 148...

[ "base", "nonn" ]

A140409

[ 2, 3, 7, 11, 19, 23, 29, 31, 41, 43, 47, 59, 67, 71, 79, 83, 101, 103, 107, 127, 131, 139, 151, 163, 167, 179, 181, 191, 199, 211, 223, 227, 229, 239, 241, 251, 263, 271, 281, 283, 307, 311, 331, 347, 349, 359, 367, 379, ...

[ "nonn" ]

A212430

[ 384, 840, 8676, 33300, 34980, 37044, 39984, 42024, 50604, 53760, 55056, 61680, 64380, 71064, 83520, 88176, 97644, 103740, 120204, 129840, 133896, 148764, 154524, 160416, 168120, 173064, 184800, 188880, 199056, 207984, 234744, 266640, 292116, 307044, ...

[ "nonn" ]

A232367

[ 161, 210039, 175284259, 143280358783, 118759183620445, 98411994699167310, 81520970965131920000, 6.753029905000226e+22, 5.594130479731035e+25, 4.6341085509706615e+28, 3.8388369552787603e+31 ]

[ "nonn" ]

A147850

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

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

A304367

[ 19, 28, 29, 37, 38, 39, 46, 47, 48, 49, 55, 56, 57, 58, 59, 64, 65, 66, 67, 68, 69, 73, 74, 75, 76, 77, 78, 79, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98, 99, 109, 118, 119, 127, 128, 129, 136,...

[ "nonn", "base" ]

A156048

[ 32377, 10908137, 34030327, 4860035567, 7656800897, 13398374537, 41162676047, 49277997407, 169906146727, 429221023247, 517971170207, 1587472376807, 1692526508927, 2687542461767, 2827976112047, 2918988711407, 3538852646177, 3843606175697, 3868058416007, 4090897510247 ]

[ "nonn" ]

A380923

[ 25, 245, 1250, 2401, 4235, 12250, 41503, 62500, 73205, 120050, 136045, 138985, 211750, 215215, 612500, 717409, 1176490, 1333241, 1362053, 1856465, 2075150, 2109107, 2351635, 2402455, 3125000, 3660250, 3720145, 4561235, 5330605, 5535985, 6002500, 6802250,...

[ "nonn", "easy" ]

A267017

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

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

A218656

[ 1, 2, 3, 2, 3, 3, 1, 5, 4, 4, 4, 5, 4, 7, 6, 5, 3, 10, 4, 9, 8, 4, 9, 6, 7, 11, 7, 5, 11, 9, 9, 9, 11, 4, 14, 14, 9, 8, 9, 7, 11, 8, 12, 12, 10, 9, 11, 17, 10, 12, 16, 7, 13, 14, 8, 15, 9, 11, 23, 1...

[ "nonn" ]

A170601

[ 1, 16, 240, 3600, 54000, 810000, 12150000, 182250000, 2733750000, 41006250000, 615093750000, 9226406250000, 138396093750000, 2075941406250000, 31139121093750000, 467086816406250000, 7006302246093750000 ]

[ "nonn" ]

A143680

[ 3, 4, 11, 16, 320, 438, 1302, 1594, 3324, 8235, 9417, 17950, 24759, 27349, 36252, 55002, 78861, 84711, 115866, 138056, 146440, 190374, 220857, 277626, 370572, 417629, 435933, 488096, 507799, 565157, 850338, 930999, 1072092, 1107343 ]

[ "nonn" ]

A299139

[ 3, 236, 6205, 143548, 3426869, 81988764, 1958821107, 46801360032, 1118229413140, 26717976955184, 638375195180545, 15252759731195844, 364435654101670340, 8707496129258581000, 208049042144382520000, 4.970935766069112e+21 ]

[ "nonn" ]

A036661

[ 1, 1, 2, 4, 8, 15, 32, 66, 142, 306, 672, 1483, 3316, 7446, 16859, 38353, 87735, 201510, 464801, 1075744, 2498053, 5817576, 13585231, 31801732, 74615404, 175433624, 413281276, 975355639, 2305763635, 5459480822, 12945857671 ]

[ "nonn", "easy" ]

A007476

[ 1, 1, 1, 2, 4, 9, 23, 65, 199, 654, 2296, 8569, 33825, 140581, 612933, 2795182, 13298464, 65852873, 338694479, 1805812309, 9963840219, 56807228074, 334192384460, 2026044619017, 12642938684817, 81118550133657, 534598577947465, 3615474317688778, 2507006342159748...

[ "nonn", "eigen", "nice" ]

A113268

[ 1, -8, 154, -3491, 88363, -2391695, 67758517, -1984135184, 59572675846, -1824065741672, 56739965057524, -1788027005117150, 56960705737368620, -1831391418128245500, 59351217395117650000, -1.9367313951370298e+21, 6.3581744945624045e+22 ]

[ "sign", "easy" ]

A080814

[ 1, 12, 1221, 12212112, 1221211221121221, 1.2212112211212212e+31, 1.2212112211212212e+63 ]

[ "nonn" ]

A289520

[ 0, 1, 9, 10, 36, 37, 45, 46, 100, 101, 109, 110, 136, 137, 145, 146, 225, 226, 234, 235, 261, 262, 270, 271, 325, 326, 334, 335, 361, 362, 370, 371, 441, 442, 450, 451, 477, 478, 486, 487, 541, 542, 550, 551, 577, 578, 586, ...

[ "nonn" ]

A056089

[ 1, 333, 623, 956, 1145, 1689, 2819, 2820, 2834, 4025, 4039, 4040, 5170, 5714, 5903, 6236, 6526, 6858, 6860, 7192, 7482, 7815, 8004, 8548, 9678, 9679, 9693, 10884, 10898, 10899, 12029, 12573, 12762, 13095, 13385, 13717, 13719, 14051, 14341, ...

[ "nonn" ]

A354115

[ 1, -2, 1, -4, 29, -244, 1583, -10368, 124553, -2029776, 20127867, -180343296, 3978820221, -75977108544, 914656587063, -15574206480384, 370244721585681, -8082505243732224, 162968423791332350, -3082360882836013000, 82014901819948740000, -2.501342802748969e+21, 5.83117719385...

[ "sign" ]

A238319

[ 51, 1867, 41046, 721939, 13265123, 261676376, 5206684654, 102053610873, 1987295524193, 38770223731701, 758012281434166, 14822685184195262, 289709710098420160, 5661329642092072000, 110637907561833460000 ]

[ "nonn" ]

A238384

[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1, 2, 3, 3, 2, 1, 1, 1, 1, 2, 3, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 6, 4, 3, 2...

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

A352150

[ 0, 1, -3, 2, -6, -1, -5, 132, 1624, 17145, 174509, 1789842, 18659146, 196678143, 2057524963, 20460314396, 171030108768, 529697015489, -27050118799923, -1079945984126798, -30289996673371256, -765129844741436800, -18575997643525740000, -444653043972658040000 ]

[ "sign" ]

A111102

[ 1, 5, 9, 10, 11, 15, 16, 20, 24, 25, 29, 33, 34, 35, 39, 40, 41, 45, 49, 50, 54, 55, 56, 60, 61, 65, 69, 70, 71, 75, 76, 77, 81, 82, 86, 90, 91, 95, 99, 100, 101, 105, 106, 110, 114, 115, 119, 120, 121, 125, 126, 1...

[ "easy", "nonn" ]

A274207

[ 1, 2, 2, 2, 2, 4, 4, 2, 4, 7, 1, 6, 6, 10, 4, 2, 9, 13, 14, 12, 2, 8, 13, 22, 18, 24, 10, 2, 2, 15, 27, 40, 29, 38, 28, 12, 2, 10, 24, 45, 65, 59, 58, 56, 40, 16, 4, 2, 23, 52, 84, 104, 112, 100, 95, 88, ...

[ "nonn", "tabf" ]

A325117

[ 2, 4, 14, 0, 6, 16, 12, 18, 64, 24, 40, 182, 36, 48, 1024, 60, 198, 348, 9050, 25180, 25658650, 584558736346, 4096, 192, 144, 120, 918, 5430, 65536, 180, 17298, 262144, 240, 6640, 4413038, 576, 3072, 4194304, 360, 3400, 19548, 134044,...

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

A058053

[ 1, 1, 3, 6, 11, 18, 33, 49, 78, 117, 171, 242, 346, 469, 640, 855, 1127, 1463, 1896, 2405, 3045, 3813, 4736, 5831, 7156, 8684, 10507, 12627, 15092, 17935, 21249, 25004, 29341, 34272, 39875, 46207, 53407, 61446, 70528, 80682, 92026, 10...

[ "nonn" ]

A161940

[ 3, 17, 101, 619, 3867, 24433, 155389, 991931, 6345363, 40639217, 260448821, 1669786219, 10707539307, 68670310033, 440429696269, 2824879831931, 18118915305123, 116216916916817, 745434117150341, 4781352082416619 ]

[ "nonn" ]

A207028

[ 10, 100, 270, 1035, 3315, 8280, 23400, 56814, 136114, 322834, 725005, 1627260, 3560880, 7664285, 16349062, 34340640, 71524992, 147574233, 301825437, 613141606, 1236720905, 2479598284, 4944012260, 9806225404, 19359765906 ]

[ "nonn" ]

A380416

[ 18, 83, 258, 627, 1298, 2403, 4098, 6563, 10002 ]

[ "nonn", "more" ]

A152855

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

[ "easy", "nonn" ]

A235632

[ 2, 3, 11, 13, 31, 41, 53, 73, 101, 131, 151, 223, 281, 313, 353, 401, 463, 521, 523, 541, 593, 661, 701, 733, 773, 941, 983, 1013, 1063, 1091, 1093, 1123, 1153, 1193, 1201, 1321, 1381, 1423, 1471, 1481, 1483, 1571, 1583, 1601, 1...

[ "nonn", "base" ]

A372367

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

[ "nonn", "cons" ]

A353916

[ 1, 2, 6, 3, 12, 4, 10, 5, 15, 9, 18, 8, 14, 7, 21, 27, 24, 16, 20, 25, 30, 32, 22, 11, 33, 66, 36, 42, 28, 49, 35, 70, 40, 60, 45, 81, 39, 13, 26, 64, 34, 17, 51, 102, 48, 78, 52, 128, 38, 19, 57, 114, 54, 84, ...

[ "nonn" ]

A038054

[ 1, 2, 4, 12, 80, 800, 10752, 181888, 3714048, 88915968, 2442936320, 75776712704, 2619618852864, 99879826948096, 4163954627051520, 188441538173337600, 9200521811924615000, 482067547423055540000, 2.698093827291225e+22 ]

[ "nonn" ]

A236921

[ 0, 0, 1, 2, 10, 32, 232, 992, 10096, 53408, 727360, 4569536, 79501696, 578101376, 12337163008, 101945840384, 2582987522560, 23913303638528, 701604503968768, 7194776722623488, 239847438803052540, 2698941227297687600, 100744097104231200000, 1.234263151585972e+21, 5.0993...

[ "nonn" ]

A119793

[ 1, 2, 3, 4, 6, 7, 10, 12, 21, 28, 30, 40, 77, 105, 175, 210, 400, 462, 495, 560, 990, 1275, 1540, 3213, 7140, 10626, 15400, 27456, 32725, 49896, 58905, 77616, 144144, 248976 ]

[ "nonn" ]

A109898

[ 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 40, 0, 0, 3003, 105, 0, 71680, 0, 24192, 2078505, 0, 0, 330, 4216455243, 0, 2788660875, 39536640, 0, 256256, 0, 16380, 6153560492625, 0, 276348105, 15841280, 0, 0, 20228646742486876, 1116288, 0, 119070...

[ "nonn" ]

A252099

[ 4581, 4866, 5087, 8941, 21405, 50222, 120128, 312242, 762514, 1878978, 4952226, 12363575, 31123465, 82567495, 210479834, 540052088, 1440608932, 3742122672, 9761698780, 26154115812, 69025530491, 182512931249, 490665213507 ]

[ "nonn" ]

A361430

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

[ "nonn", "easy", "mult" ]

A229504

[ 0, 6, 48, 288, 1536, 7680, 36864, 172032, 786432, 3538944, 15728640, 69206016, 301989888, 1308622848, 5637144576, 24159191040, 103079215104, 438086664192, 1855425871872, 7834020347904, 32985348833280, 138538465099776 ]

[ "nonn" ]

A336831

[ 1, 1, 1, 10, 4359, 91406876, 111657668637280, 1.1436881770074767e+22, 1.375601555206002e+32, 2.6012262789321377e+44, 9.978179629343084e+58 ]

[ "nonn" ]

A189113

[ 32, 1024, 15200, 207936, 3179520, 49561600, 769236480, 11893211136, 184082644992, 2851396977664, 44168388925440, 684087791325184, 10595270714362880, 164105309987946500, 2541771994561622000 ]

[ "nonn" ]

A352206

[ 1, 2, 8, 24, 64, 160, 448, 896, 2304, 4608, 11264, 24576, 53248, 106496, 245760, 491520, 1114112, 2228224 ]

[ "nonn", "more" ]

A018947

[ 0, 11, 32, 285, 1349, 9222, 54014, 353731, 2251144, 14926216, 99321087, 674855955, 4635871503, 32311508644, 227740491756 ]

[ "nonn", "more" ]

A199551

[ 1, 2, 33, 51, 69, 105, 195, 250, 294, 1250, 4913, 9583, 13778, 48778, 65603, 83521, 111265, 228939, 651695, 984150, 1414562, 1857848, 2668626, 5643110, 6295726, 10091354 ]

[ "nonn", "more" ]

A259021

[ 1, 6, 10, 14, 26, 74, 94, 134, 146, 206, 314, 326, 386, 466, 634, 674, 1094, 1174, 1294, 1306, 1354, 1366, 1546, 1654, 1766, 1774, 1894, 1966, 2026, 2126, 2174, 2326, 2594, 2654, 2746, 2974, 2986, 3046, 3106, 3134, 3214, 3254, 3274,...

[ "nonn" ]

A059219

[ 1, 1, 2, 5, 15, 55, 239, 1199, 6810, 43108, 300731, 2291162, 18923688, 168402163, 1606199354, 16345042652, 176758631046, 2024225038882, 24471719797265, 311446235344127, 4162172487402027, 58275220793611960, 853045299274146000 ]

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

A199121

[ 1, 1, 0, 0, 1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 5, 6, 6, 7, 8, 7, 8, 10, 11, 11, 12, 14, 14, 15, 17, 18, 20, 21, 22, 24, 25, 27, 30, 31, 32, 35, 37, 39, 41, 44, 45, 48, 52, 53, 56, 60, 62, 66, 69, 72, 76, 81...

[ "nonn" ]

A325775

[ 102, 25, 20, 27, 22, 29, 24, 90, 26, 0, 104, 10, 40, 30, 42, 49, 44, 70, 28, 3, 23, 5, 12, 7, 2, 9, 4, 19, 6, 14, 106, 21, 60, 32, 62, 47, 46, 50, 48, 13, 52, 15, 45, 17, 34, 37, 36, 39, 16, 38, 108, 41, 80, 43...

[ "sign", "base" ]

A070126

[ 3, 6, 9, 16, 22, 34, 35, 43, 46, 63, 84, 109, 124, 159, 170, 189, 201, 234, 286, 297, 350, 352, 382, 410, 450, 478, 479, 515, 527, 597, 629, 688, 708, 811, 817, 868, 900, 981, 1021, 1033, 1105, 1153, 1284, 1386, 1419, 1425 ]

[ "nonn" ]

A162110

[ 2, 4, 8, 21, 53, 145, 405, 1180, 3562, 11030, 35306, 115338, 387443, 1326992, 4650201, 16604351, 60443887, 223971602, 844095896, 3234044019, 12582749734, 49703821584, 199149007691, 809153896365, 3331563584486 ]

[ "nonn" ]

A042176

[ 24, 25, 99, 619, 718, 3491, 4209, 7700, 11909, 43427, 98763, 1129820, 1228583, 19558565, 20787148, 40345713, 101478574, 243302861, 344781435, 588084296, 9166045875, 9754130171, 116461477756 ]

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

A376281

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

[ "nonn" ]

A377883

[ 1, 1, 1, 7, 34, 126, 496, 2052, 8264, 32776, 130816, 524272, 2098144, 8388576, 33550336, 134217792, 536887424, 2147483776, 8589869056, 34359738112, 137439215104, 549755813376, 2199022206976, 8796093023232, 35184376285184, 140737488357376, 562949936644096 ]

[ "nonn", "easy" ]

A157401

[ 1, 1, 1, 1, 1, 3, 3, 1, 9, 12, 15, 1, 25, 60, 75, 105, 1, 75, 330, 450, 630, 945, 1, 231, 1680, 3675, 4410, 6615, 10395, 1, 763, 9408, 30975, 41160, 52920, 83160, 135135, 1, 2619, 56952, 233415, 489510, 555660, 748440, 1216215 ]

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

A242728

[ 1, 2, 7, 25, 93, 346, 1291, 4817, 17977, 67090, 250383, 934441, 3487381, 13015082, 48572947, 181276705, 676533873, 2524858786, 9422901271, 35166746297, 131244083917, 489809589370, 1827994273563, 6822167504881, 25460675745961, 95020535478962 ]

[ "nonn", "easy" ]

A231227

[ 1, 2, 2, 3, 4, 3, 6, 8, 8, 6, 11, 17, 21, 17, 11, 22, 45, 54, 54, 45, 22, 43, 103, 185, 182, 185, 103, 43, 86, 264, 552, 812, 812, 552, 264, 86, 171, 676, 1799, 2962, 4298, 2962, 1799, 676, 171, 342, 1724, 5900, 12179, ...

[ "nonn", "tabl" ]

A093421

[ 1, 1, 3, 1, 1, 1, 1, 1, 1, 5, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 11, 1, 3, 1, 1, 1, 1, 1, 1, ...

[ "nonn", "easy", "frac", "tabl", "less" ]