id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A200625
[ 1, 4, 3, 4, 4, 3, 6, 7, 9, 8, 5, 3, 1, 0, 6, 4, 8, 8, 2, 7, 1, 8, 8, 6, 4, 3, 5, 1, 3, 5, 4, 3, 3, 5, 8, 5, 0, 3, 4, 3, 9, 6, 6, 8, 1, 5, 1, 2, 5, 3, 6, 8, 1, 7, 1, 8, 4, 8, 5, 3, 0, 2, 3, 6...
[ "nonn", "cons" ]
A010710
[ 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5...
[ "nonn", "easy" ]
A296694
[ 1, 2, 3, 5, 10, 15, 17, 18, 19, 21, 24, 25, 28, 29, 30, 33, 34, 35, 38, 39, 42, 44, 45, 46, 49, 50, 51, 54, 55, 59, 63, 65, 66, 67, 69, 74, 79, 81, 82, 83, 85, 88, 89, 92, 93, 94, 96, 101, 104, 105, 112, 117, 122...
[ "nonn", "base" ]
A283242
[ 1, -5, 2, 15, 12, -36, -92, -17, 167, 358, 283, -293, -1321, -2012, -1101, 2299, 7296, 10505, 6901, -7705, -31240, -52490, -51336, -6032, 91521, 217064, 303776, 250595, -36282, -575622, -1234465, -1684515, -1448538, -66980, 2610835, 6087681, 89...
[ "sign" ]
A355186
[ 5, 6, 1, 0, 9, 9, 8, 5, 2, 3, 3, 9, 1, 8, 0, 1, 2, 7, 1, 3, 5, 7, 1, 9, 5, 8, 8, 9, 3, 5, 2, 3, 9, 6, 9, 2, 8, 0, 8, 8, 7, 2, 4, 2, 4, 6, 2, 8, 0, 9, 9, 9, 2, 5, 8, 9, 9, 5, 5, 9, 3, 1, 2, 6...
[ "nonn", "cons" ]
A039388
[ 52, 68, 133, 149, 214, 230, 295, 311, 376, 392, 412, 421, 430, 439, 448, 466, 468, 469, 470, 471, 472, 474, 476, 484, 538, 554, 572, 581, 590, 599, 608, 612, 613, 614, 615, 616, 618, 620, 626, 644, 700, 716, 781, 797, 862, 878...
[ "nonn", "base", "easy" ]
A379202
[ 1, 4, 20, 122, 850, 6432, 51324, 424694, 3608592, 31291658, 275774228, 2462835772, 22239367632, 202713590686, 1862689951724, 17235880764264, 160466865121154, 1502055108051124, 14127846520455180, 133455751612975950, 1265563747442829300, 12043611154775589000, 11497874813173...
[ "nonn" ]
A099619
[ 2, 3, 4, 6, 7, 8, 10, 11, 12, 14, 15, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 38, 41, 42, 43, 44, 46, 47, 48, 49, 50, 52, 53, 54, 56, 57, 58, 59, 61, 63, 64, 65, 66, 67, 68, 70, ...
[ "nonn" ]
A302156
[ 1, 3, 45, 4725, 5457375, 81942485625, 20916229168209376, 1.014404694502944e+23, 1.1315322731906749e+31, 3.66033334369411e+40, 3.670591247252363e+51, 1.3619248222892704e+64 ]
[ "nonn", "easy" ]
A119718
[ 4, 9, 10, 21, 22, 15, 14, 25, 6, 35, 26, 33, 34, 39, 38, 49, 46, 51, 55, 57, 58, 65, 62, 69, 74, 77, 82, 85, 86, 87, 91, 93, 94, 95, 106, 111, 115, 118, 119, 121, 122, 123, 133, 129, 134, 141, 142, 143, 145, 146, 155...
[ "nonn" ]
A357777
[ 1, 2, 4, 6, 3, 9, 12, 8, 14, 7, 35, 5, 15, 10, 16, 20, 18, 21, 27, 24, 22, 11, 33, 30, 25, 55, 40, 26, 13, 39, 36, 28, 32, 34, 17, 51, 45, 57, 19, 133, 38, 44, 46, 23, 69, 42, 48, 50, 52, 54, 56, 49, 63, 60, ...
[ "nonn" ]
A076626
[ 1, 0, 0, -1, 0, 1, 0, -2, 0, 2, 1, 0, -5, 0, 4, 0, 4, 0, -12, 0, 8, -1, 0, 13, 0, -28, 0, 16, 0, -6, 0, 38, 0, -64, 0, 32, 1, 0, -25, 0, 104, 0, -144, 0, 64, 0, 8, 0, -88, 0, 272, 0, -320, 0, 128, -1, 0, ...
[ "sign", "tabl" ]
A188696
[ 1, 26, 676, 17576, 456974, 11881272, 308911722, 8031669672, 208822498874, 5429361243280, 141162775414434, 3670216121163384, 95425202122161090, 2481044412493313500, 64506872816303410000, 1.6771713636343292e+21, 4.360626488599684e+22, 1.1337579322766823e+24, 2.9477577416016604e+25,...
[ "nonn", "easy" ]
A044901
[ 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 480, 481, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 720, 721, 722, 724, ...
[ "nonn", "base" ]
A240367
[ 11, 111, 1181, 13846, 165110, 2057843, 25667276, 329976721, 4209948942, 54835868848, 706915105152, 9251489612408, 119830890364458, 1570263366115713, 20386274517258736, 267147847200802800, 3472830684721624600 ]
[ "nonn" ]
A077545
[ 2, 5, 13, 19, 29, 43, 59, 67, 73, 89, 97, 103, 127, 149, 157, 163, 173, 179, 233, 239, 241, 263, 269, 271, 277, 293, 307, 331, 337, 347, 353, 383, 421, 443, 467, 521, 557, 587, 617, 619, 641, 701, 709, 733, 739, 761, 769, ...
[ "base", "nonn" ]
A382322
[ 1, 2, 8, 50, 308, 2044, 14072, 100172, 730328, 5428498, 40978780, 313322910, 2421454020, 18884988540, 148443853936, 1174814738082, 9353539487160, 74865615299260, 602057472027484, 4862177553583604, 39416710563473400, 320650120976612160, 2616673301770051600, 2141497302064...
[ "nonn" ]
A060785
[ 0, 12, 54, 126, 228, 360, 522, 714, 936, 1188, 1470, 1782, 2124, 2496, 2898, 3330, 3792, 4284, 4806, 5358, 5940, 6552, 7194, 7866, 8568, 9300, 10062, 10854, 11676, 12528, 13410, 14322, 15264, 16236, 17238, 18270, 19332, 20424, 21546, 2269...
[ "nonn", "easy" ]
A175109
[ 1, 13, 63, 171, 365, 665, 1099, 1687, 2457, 3429, 4631, 6083, 7813, 9841, 12195, 14895, 17969, 21437, 25327, 29659, 34461, 39753, 45563, 51911, 58825, 66325, 74439, 83187, 92597, 102689, 113491, 125023, 137313, 150381, 164255, 178955 ]
[ "easy", "nonn" ]
A217168
[ 7, 8, 7, 8, 7, 7, 7, 8, 0, 8, 1, 6, 1, 2, 7, 2, 2, 7, 0, 2, 8, 6, 7, 8, 4, 5, 6, 1, 0, 1, 7, 4, 7, 5, 6, 3, 4, 5, 0, 5, 1, 1, 7, 4, 5, 6, 5, 1, 0, 8, 5, 1, 1, 3, 0, 1, 0, 1, 0, 3, 8, 4, 7, 2...
[ "nonn", "base" ]
A230180
[ 9, 159, 3411, 73857, 1603431, 34825803, 756450105, 16430979183, 356900507139, 7752307003185, 168389408761527, 3657619992450939, 79447894698990450, 1725703595660236000, 37484352623641490000, 814205113293390700000 ]
[ "nonn" ]
A136376
[ 1, 3, 8, 18, 37, 73, 139, 259, 474, 856, 1529, 2707, 4757, 8307, 14428, 24942, 42941, 73661, 125951, 214739, 365166, 619508, 1048753, 1771943, 2988457, 5031843, 8459504, 14201994, 23811349, 39873841, 66695539, 111440227, 186016962 ]
[ "nonn", "easy" ]
A090949
[ 0, 27, 89, 203, 389, 670, 1072, 1624, 2358, 3309, 4515, 6017, 7859, 10088, 12754, 15910, 19612, 23919, 28893, 34599, 41105, 48482, 56804, 66148, 76594, 88225, 101127, 115389, 131103, 148364, 167270, 187922, 210424, 234883, 261409, 290115, 32111...
[ "nonn", "easy" ]
A045235
[ 93, 343, 393, 443, 453, 463, 465, 467, 469, 473, 493, 593, 1343, 1593, 1643, 1693, 1703, 1713, 1715, 1717, 1719, 1723, 1743, 1843, 1893, 1943, 1953, 1963, 1965, 1967, 1969, 1973, 1993, 2143, 2193, 2203, 2213, 2215, 2217 ]
[ "nonn", "base" ]
A238576
[ 0, 1, 2, 3, 2, 3, 1, 4, 3, 2, 2, 4, 2, 2, 2, 3, 2, 2, 4, 5, 2, 2, 1, 8, 2, 2, 3, 3, 2, 2, 4, 4, 5, 6, 2, 5, 4, 3, 3, 7, 2, 2, 8, 8, 5, 4, 6, 3, 3, 7, 6, 5, 3, 3, 9, 4, 8, 3, 5, 3, 1, 5, 6, 4...
[ "nonn" ]
A094344
[ 1, 0, 1, 0, 1, 1, 0, 2, 4, 1, 0, 6, 18, 13, 1, 0, 24, 96, 119, 46, 1, 0, 120, 600, 1059, 777, 199, 1, 0, 720, 4320, 9890, 10760, 5536, 1072, 1, 0, 5040, 35280, 99158, 142990, 111316, 44228, 6985, 1, 0, 40320, 322560, 107...
[ "nonn", "tabl" ]
A218701
[ 1, 1, 2, 2, 3, 2, 4, 2, 5, 5, 8, 7, 14, 11, 16, 19, 23, 22, 32, 29, 38, 40, 48, 48, 67, 63, 81, 85, 106, 106, 141, 138, 174, 180, 219, 224, 284, 282, 342, 356, 422, 431, 530, 532, 631, 660, 765, 789, 948, 965, 1123, ...
[ "nonn" ]
A311877
[ 1, 4, 8, 13, 17, 21, 27, 29, 33, 39, 43, 48, 51, 55, 60, 62, 69, 75, 75, 81, 86, 89, 95, 98, 102, 108, 108, 117, 122, 120, 129, 133, 136, 143, 145, 148, 155, 154, 165, 170, 166, 177, 179, 182, 191, 192, 195, 203, 200, ...
[ "nonn" ]
A044896
[ 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 112, 113, 114, 115, 116, 117, 118, 119, 220, 221, 223, 224, 225, 226, 227, 228, 229, 330, 331, 332, 334, 335, 336, 337, 338, 339, 440, 441, 442, 443, 445, 446, 447, 448, 449, 550, 551...
[ "nonn", "base" ]
A371870
[ 1, 1, 4, 14, 51, 189, 709, 2683, 10220, 39130, 150438, 580328, 2245004, 8705686, 33828704, 131688362, 513445147, 2004688605, 7836832057, 30670416703, 120153739079, 471143251989, 1848978071615, 7261781367389, 28540427527441, 112243216215879, 441693646453729 ]
[ "nonn" ]
A199612
[ 3, 5, 9, 5, 3, 0, 4, 8, 6, 7, 1, 6, 1, 5, 4, 7, 9, 9, 1, 8, 7, 7, 6, 0, 6, 9, 3, 5, 0, 8, 3, 4, 1, 8, 7, 1, 4, 9, 1, 3, 1, 1, 1, 4, 3, 7, 7, 7, 5, 5, 2, 9, 3, 2, 5, 1, 8, 5, 5, 2, 2, 4, 8, 6...
[ "nonn", "cons" ]
A165564
[ 1, 2, 3, 4, 8, 9, 10, 11, 12, 16, 17, 18, 19, 25, 26, 27, 32, 33, 35, 36, 40, 42, 43, 44, 48, 49, 50, 51, 57, 58, 59, 64, 66, 67, 68, 72, 73, 74, 75, 76, 81, 82, 83, 89, 90, 91, 97, 98, 99, 100, 104, 105, 106, ...
[ "nonn" ]
A279475
[ 1, 3, 3, 7, 11, 23, 59, 87, 251, 279, 827, 1623, 3323, 7959, 9019, 26199, 56571, 109335, 218939, 436823, 875771, 1747735, 3503931, 8038999, 9819387, 17476375, 46126907, 88123991, 184016123, 354986775, 737900347, 1410771543, 2830996731, 5734345495 ]
[ "nonn", "easy" ]
A205401
[ 1, 3, 2, 5, 4, 14, 8, 7, 23, 12, 11, 18, 34, 17, 16, 24, 47, 23, 22, 52, 31, 63, 30, 29, 82, 39, 50, 38, 37, 49, 87, 48, 60, 47, 46, 59, 72, 58, 100, 57, 56, 115, 70, 84, 69, 186, 68, 67, 155, 82, 130, 81, 174, ...
[ "nonn" ]
A226734
[ 0, 0, 0, 0, 0, 0, 14, 30, 15, 0, 0, 0, 0, 0, 90, 34, 102, 57, 0, 0, 0, 0, 138, 210, 195, 156, 84, 0, 0, 0, 434, 198, 0, 0, 420, 222, 0, 0, 390, 410, 0, 0, 0, 330, 345, 0, 846, 546, 560, 765, 0, 0, 159, 165, 7...
[ "nonn" ]
A129765
[ 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2...
[ "nonn", "tabl", "easy" ]
A313935
[ 1, 5, 10, 16, 23, 27, 33, 37, 43, 49, 55, 60, 65, 70, 75, 82, 87, 93, 97, 103, 108, 114, 120, 125, 130, 135, 141, 146, 153, 157, 163, 168, 173, 179, 185, 190, 195, 201, 205, 212, 217, 223, 228, 233, 238, 244, 250, 255, 2...
[ "nonn" ]
A295964
[ 1, 4, 9, 18, 33, 58, 100, 168, 279, 459, 751, 1224, 1990, 3230, 5238, 8487, 13745, 22253, 36020, 58296, 94340, 152661, 247027, 399715, 646770, 1046514, 1693314, 2739859, 4433206, 7173099, 11606340, 18779475, 30385852, 49165365, 79551256, 12871666...
[ "nonn", "easy" ]
A383271
[ 0, 0, 1, 1, 1, 1, 2, 2, 0, 2, 2, 1, 1, 1, 0, 3, 1, 1, 2, 3, 0, 4, 1, 3, 0, 2, 0, 3, 1, 2, 1, 2, 0, 2, 1, 2, 1, 2, 0, 3, 1, 1, 1, 4, 0, 5, 1, 1, 0, 2, 0, 2, 1, 2, 0, 2, 0, 3, 1, 1, 1, 2, 0, 4...
[ "nonn", "base" ]
A379532
[ 390, 546, 690, 798, 1155, 1230, 1770, 2010, 2090, 2418, 2618, 2814, 3090, 3290, 3390, 3930, 4326, 4370, 4470, 4578, 4602, 4641, 6110, 6870, 7170, 7490, 7735, 7930, 8294, 9834, 10110, 10545, 10738, 11102, 11346, 11390, 11454, 11622, 11715, ...
[ "nonn" ]
A049833
[ 0, 1, 5, 13, 23, 40, 54, 80, 104, 131, 161, 209, 231, 288, 332, 376, 426, 499, 549, 631, 673, 748, 826, 940, 972, 1073, 1177, 1261, 1347, 1490, 1526, 1688, 1774, 1899, 2031, 2133, 2219, 2398, 2538, 2680, 2766, 2981, 3039, 3281, ...
[ "nonn" ]
A069055
[ 9, 96, 972, 9216, 98304, 995328, 9565938, 95551488, 967458816, 9795520512, 99179645184, 990677827584, 9895604649984, 96402615118848, 976076478078336, 9882774340543152, 98716277881700350, 999502313552216000 ]
[ "nonn", "base" ]
A224992
[ 1, 3, 18, 144, 1368, 14400, 160992, 1861632, 21919104, 260508672, 3110985216, 37241118720, 446349219840, 5352925446144, 64215514275840, 770468624990208, 9244918222258176, 110934787001942020, 1331192054033547300, 15974152308466385000, 191688913661984240000 ]
[ "nonn", "easy" ]
A184068
[ 81, 225, 1884, 22452, 288744, 2663589, 19694227, 116690636, 572683182, 2305864084, 7782298646, 22382616957, 56141874238, 124734871342, 249667791032, 456693083041, 773758373131, 1229106077318, 1850219475619, 2663743231907 ]
[ "nonn" ]
A332381
[ 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 2, 2, 1, 1, 2, 2, 3, 3, 4, 4, 3, 3, 2, 2, 3, 3, 2, 2, 1, 1, 2, 2, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, -2, -2, -1, -1, -2, -2, -3, -3, -2, -2, -3, -3, ...
[ "sign", "base" ]
A056999
[ 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29, 31, 31, 31, 31, 31, ...
[ "nonn" ]
A350709
[ 1100, 1010, 1001, 1100, 1010, 1001, 1100, 1010, 1001, 1100, 2110, 2020, 2011, 2110, 2020, 2011, 2110, 2020, 2011, 2110, 2101, 2011, 2002, 2101, 2011, 2002, 2101, 2011, 2002, 2101, 2200, 2110, 2101, 2200, 2110, 2101, 2200 ]
[ "nonn", "base", "easy" ]
A285056
[ 1, 11, 126, 753, 1923, 32183, 134708, 1487139, 23908603, 215443469, 106917811, 15056809703, 27354803113, 681048619195, 361160395301 ]
[ "nonn", "base", "more" ]
A003766
[ 6, 152, 1608, 15420, 127980, 1003360, 7432708, 53294540, 371397240, 2537155684, 17047659916, 113102692016, 742597784164, 4835184613212, 31267479066856, 201066698078244, 1286998671857356, 8206523391863296 ]
[ "nonn" ]
A212041
[ 0, 0, 5, 319, 14949, 253072, 2326567, 14516200, 69305994, 271885024, 917364452, 2746402607, 7459357270 ]
[ "nonn" ]
A156159
[ 169, 289, 625, 2809, 7225, 18769, 93025, 243049, 635209, 3157729, 8254129, 21576025, 107267449, 280395025, 732947329, 3643933225, 9525174409, 24898630849, 123786459889, 323575532569, 845820499225, 4205095700689 ]
[ "nonn", "easy" ]
A090710
[ 2, 3, 5, 23, 41, 43, 61, 113, 131, 241, 313, 401, 421, 443, 461, 463, 661, 1013, 1033, 1051, 1123, 1231, 1301, 1433, 1453, 1543, 1613, 2111, 2131, 2153, 2203, 2333, 2441, 2531, 2551, 3121, 3163, 3251, 3323, 3433, 3541, 4001, 4111, ...
[ "base", "nonn" ]
A005319
[ 0, 4, 24, 140, 816, 4756, 27720, 161564, 941664, 5488420, 31988856, 186444716, 1086679440, 6333631924, 36915112104, 215157040700, 1254027132096, 7309005751876, 42600007379160, 248291038523084, 1447146223759344, 8434586304032980 ]
[ "nonn", "easy" ]
A296150
[ 1, 2, 1, 1, 3, 2, 1, 4, 1, 1, 1, 2, 2, 3, 1, 5, 2, 1, 1, 6, 4, 1, 3, 2, 1, 1, 1, 1, 7, 2, 2, 1, 8, 3, 1, 1, 4, 2, 5, 1, 9, 2, 1, 1, 1, 3, 3, 6, 1, 2, 2, 2, 4, 1, 1, 10, 3, 2, 1, 11, 1, 1, 1, ...
[ "nonn", "tabf", "look" ]
A145393
[ 1, 2, 2, 4, 3, 5, 3, 7, 5, 7, 4, 11, 5, 8, 8, 12, 6, 13, 6, 15, 10, 11, 7, 21, 10, 13, 12, 18, 9, 22, 9, 21, 14, 16, 14, 29, 11, 17, 16, 29, 12, 28, 12, 25, 23, 20, 13, 39, 16, 27, 20, 29, 15, 34, 20, 36, ...
[ "nonn" ]
A052636
[ 2, 1, 6, 6, 120, 120, 6480, 5040, 685440, 362880, 119750400, 39916800, 31135104000, 6227020800, 11245999564800, 1307674368000, 5377157001216000, 355687428096000, 3284417711038464000, 121645100408832000, 2.493724558381056e+21, 51090942171709440000, 2.303077491216318e+24 ]
[ "easy", "nonn" ]
A261360
[ 1, 1, 2, 2, 2, 1, 4, 4, 4, 4, 8, 8, 4, 8, 4, 1, 6, 6, 6, 12, 24, 24, 12, 24, 12, 8, 24, 24, 24, 48, 24, 8, 24, 24, 8, 1, 8, 8, 8, 24, 48, 48, 24, 48, 24, 32, 96, 96, 96, 192, 96, 32, 96, 96, 32, 16, 64, ...
[ "nonn", "tabf", "walk", "less" ]
A365033
[ 1, 1, 9, 127, 2769, 80861, 2976733, 132394011, 6909143265, 414041227417, 28025981914581, 2115049310887679, 176095675272002940, 16035108243371426000, 1.585349332849711e+21, 1.6912810756512836e+23, 1.9365426435579374e+25, 2.3688825739958415e+27 ]
[ "nonn" ]
A287514
[ 4147, 8294, 8323, 12441, 16646, 20735, 24882, 24969, 41470, 41615, 49938, 55309, 62205, 83230, 91553, 108199, 110618, 124410, 124845, 165927, 183106, 216398, 249690, 274659, 276545, 324597, 331854, 387163, 457765, 540995, 549318, 553090, 608399, 6491...
[ "nonn" ]
A272971
[ 6, 28, 36, 37, 4, 8, 4, 22, 0, 34, 32, 203, 28 ]
[ "nonn" ]
A139612
[ 12, 78, 144, 210, 276, 342, 408, 474, 540, 606, 672, 738, 804, 870, 936, 1002, 1068, 1134, 1200, 1266, 1332, 1398, 1464, 1530, 1596, 1662, 1728, 1794, 1860, 1926, 1992, 2058, 2124, 2190, 2256, 2322, 2388, 2454, 2520, 2586, 2652, 2718 ...
[ "easy", "nonn" ]
A333149
[ 0, 0, 0, 0, 0, 0, 4, 4, 8, 12, 38, 42, 72, 98, 150, 298, 372, 542, 760, 1070, 1428, 2600, 3120, 4550, 6050, 8478, 10976, 15220, 23872, 29950, 41276, 55062, 74096, 97148, 129786, 167256, 256070, 314454, 429338, 556364, 749266, 955746, ...
[ "nonn" ]
A019068
[ 0, 0, 5, 4, 12, 34, 54, 152, 360, 669, 1661, 3856, 8167, 19462, 45722, 105386, 255448, 624360, 1549315, 3945767, 10147944, 26472937, 69822227, 185025991, 492510221, 1313320180, 3501289056 ]
[ "nonn", "more" ]
A093307
[ 5, 5, 7, 13, 31, 73, 181, 349, 859, 1723, 3361, 6091, 11833, 22273, 41959, 77713, 138403, 249439, 447793, 799741, 1399201, 2459923, 4312741, 7581943, 13233841, 23019043, 39921979, 69112963, 119168383, 205190353, 352286899, 603678289, 1032646423, 1763...
[ "nonn" ]
A270817
[ 1, 3, 4, 9, 11, 69, 117, 449, 675, 1119, 1959, 2687, 2859, 8001, 8175, 24269, 110247 ]
[ "nonn", "more" ]
A273597
[ 39, 38, 37, 35, 34, 32, 31, 29, 26, 25, 22, 20, 19, 17, 14, 12, 11, 12, 12, 12, 12, 16, 15, 12, 12, 13, 14, 13, 13, 14, 13, 13, 13, 13, 14, 14, 14, 16, 16, 16, 15, 15, 16, 16, 17 ]
[ "nonn" ]
A243293
[ 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 15, 16, 17, 18, 18, 19, 20, 21, 21, 22, 23, 24, 24, 25, 26, 26, 27, 28, 29, 29, 30, 31, 31, 32, 33, 33, 34, 34, 35, 36, 36, 37, 38, 38, 39, 40, 40, 41, 41, 42, 43, 43, ...
[ "nonn" ]
A137829
[ 1, 2, 6, 12, 25, 46, 86, 148, 255, 420, 686, 1088, 1712, 2634, 4020, 6036, 8988, 13214, 19282, 27840, 39923, 56750, 80160, 112384, 156660, 216958, 298894, 409420, 558119, 756950, 1022090, 1373760, 1838932, 2451366, 3255480, 4306920, 5678104, ...
[ "nonn" ]
A319431
[ 2, 3, 2, 5, 2, 3, 10, 2, 3, 2, 5, 2, 19, 2, 3, 2, 5, 2, 3, 10, 2, 3, 2, 37, 2, 3, 2, 5, 2, 3, 10, 2, 3, 2, 5, 2, 19, 2, 3, 2, 5, 2, 3, 74, 2, 3, 2, 5, 2, 3, 10, 2, 3, 2, 5, 2, 19, 2, 3, 2, 5, 2,...
[ "nonn" ]
A249766
[ 11, 12, 15, 22, 24, 33, 36, 44, 48, 55, 66, 77, 88, 99, 101, 102, 104, 105, 110, 120, 125, 150, 202, 204, 208, 210, 220, 240, 250, 303, 306, 312, 315, 330, 360, 375, 404, 408, 416, 420, 440, 480, 505, 510, 520, 525, 550, 6...
[ "nonn", "base" ]
A310505
[ 1, 4, 10, 16, 20, 26, 32, 38, 42, 48, 54, 58, 62, 68, 74, 78, 84, 90, 96, 100, 106, 112, 116, 120, 126, 132, 136, 142, 148, 154, 158, 164, 170, 174, 178, 184, 190, 194, 200, 206, 212, 216, 222, 228, 232, 236, 242, 248, 2...
[ "nonn" ]
A052429
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 2, 6, 4, 10, 6, 14, 8, 18, 3, 3, 6, 3, 12, 15, 6, 21, 24, 9, 4, 4, 4, 12, 4, 20, 12, 28, 8, 36, 5, 5, 10, 15, 20, 5, 30, 35, 40, 45, 6,...
[ "base", "easy", "nonn" ]
A280579
[ 0, 0, 4, 0, -3, 1, 0, 11, 8, 12, 0, -8, 3, 0, 4, 0, 24, 16, 27, 24, 28, 0, -19, 5, -3, 8, 5, 9, 0, 43, 24, 48, 40, 51, 48, 52, 0, -36, 7, -12, 12, 4, 15, 12, 16, 0, 68, 32, 75, 56, 80, 72, 83, 80, 84, 0, ...
[ "sign", "tabl" ]
A193123
[ 0, 1, 37, 2239, 569881, 907290415 ]
[ "nonn" ]
A285348
[ 1, 2, 0, -4, -2, 6, 8, -4, -16, -6, 20, 24, -12, -44, -16, 52, 62, -28, -108, -40, 122, 144, -64, -244, -88, 266, 308, -136, -508, -180, 544, 624, -272, -1008, -356, 1060, 1206, -524, -1920, -672, 1988, 2244, -968, -3524, -1224,...
[ "sign" ]
A013629
[ 14, 21, 25, 30, 32, 37, 40, 43, 48, 49, 52, 56, 59, 60, 65, 67, 69, 72, 75, 77, 79, 82, 84, 87, 88, 92, 94, 95, 98, 101, 103, 105, 107, 111, 111, 114, 116, 118, 121, 122, 124, 127, 129, 131, 133, 134, 138, 139, 141, 14...
[ "nonn" ]
A067929
[ 1, 2, 4, 12, 17, 55, 57, 80, 195, 211, 233, 602, 694, 1319, 2726, 26312, 71173, 101457, 145789, 165710, 299228, 483888, 718738, 1757846, 4206121, 9518456, 15505388, 15885915, 15929230, 26445656, 28665696, 37875137, 147389152, 218849960, 430031707, ...
[ "nonn" ]
A257460
[ 2, 1, 2, 0, 3, 1, 2, 1, 2, 48, 1, 10, 2, 3, 3, 3, 9, 1, 1, 2, 66, 1, 2, 8, 1, 2, 6, 3, 1, 3, 1, 2, 3, 6, 8, 9, 7, 1, 3, 2, 2, 3, 17, 4, 2, 1, 3, 1, 2, 1, 3, 2, 1, 5, 17, 5, 8, 16, 1, 3, 1, 8, ...
[ "nonn", "base" ]
A259767
[ 104, 167, 256, 385, 612, 1108, 1708, 2700, 4660, 7378, 11350, 19232, 31280, 48032, 80218, 131336, 202926, 335260, 550228, 857598, 1403502, 2304624, 3618252, 5883582, 9653232, 15248198, 24687220, 40439420, 64203790, 103643474, 169453708 ]
[ "nonn" ]
A092978
[ 2, 8, 16, 128, 256, 3072, 6144, 98304, 196608, 3932160, 7864320, 188743680, 25165824, 704643072, 21139292160, 676457349120, 1352914698240, 48704929136640, 4638564679680, 185542587187200, 7792788661862400 ]
[ "nonn" ]
A073784
[ 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1...
[ "easy", "nonn" ]
A031124
[ 1, 0, 2, 2, 0, 0, 2, 2, 2, -2, 2, 2, 2, -2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, -4, 2, 2, 2, 0, 2, 0, 2, 0, 2, 2, 0, 0, 2, 2, 0, -4, 2, 2, 2, 0, 2, 2, 2, -4, 2, 2, 2, 0, 2, 2, 2, -2, 0, 2, 2, -2, ...
[ "sign" ]
A045003
[ 512, 548, 560, 564, 656, 668, 672, 704, 708, 720, 809, 917, 953, 965, 969, 1241, 1277, 1289, 1293, 1385, 1397, 1401, 1433, 1437, 1449, 1511, 1529, 1535, 1537, 1565, 1601, 1613, 1617, 1637, 1643, 1645, 1655, 1667, 1671 ]
[ "nonn", "base" ]
A220542
[ 2, 8, 38, 176, 816, 3616, 15362, 63484, 258180, 1041120, 4180554, 16752240, 67064038, 268355784, 1073601356, 4294721316, 17179440926, 68718734848, 274876627338, 1099509429172, 4398042746324, 17592179617352, 70368733235570 ]
[ "nonn" ]
A299364
[ 1, 389, 1943, 66668, 1640199, 45416563, 1301827631, 37042505019, 1066728270636, 30670808858758, 883402914068483, 25447304504082340, 733144473941810400, 21124168738007780000, 608659094900501500000, 1.7537924758232136e+22 ]
[ "nonn" ]
A165592
[ 0, 1, 0, 1, 2, 3, 2, 1, 0, 1, 0, 1, 2, 1, 2, 3, 4, 3, 2, 1, 2, 1, 0, 1, 0, 1, 2, 3, 2, 1, 0, -1, -2, -1, 0, -1, 0, -1, 0, -1, -2, -1, 0, 1, 2, 3, 2, 1, 2, 3, 2, 1, 0, -1, -2, -1, 0, -1, 0, -1, 0, ...
[ "sign" ]
A265787
[ 2, 3, 19, 37, 131, 317, 419, 563, 953, 3037, 4003, 5689, 11933, 49939, 69247 ]
[ "nonn", "frac", "more" ]
A122328
[ 0, 1, 3, 2, 7, 8, 6, 4, 5, 17, 18, 20, 22, 21, 16, 19, 14, 9, 10, 15, 11, 12, 13, 45, 46, 48, 50, 49, 54, 55, 61, 63, 64, 57, 62, 58, 59, 44, 47, 53, 60, 56, 42, 51, 37, 23, 24, 38, 25, 27, 26, 43, 52, 39, 28...
[ "nonn" ]
A224996
[ 2, 3, 5, 6, 8, 9, 11, 12, 13, 15, 16, 18, 19, 21, 22, 24, 25, 26, 28, 29, 31, 32, 34, 35, 37, 38, 39, 41, 42, 44, 45, 47, 48, 49, 51, 52, 54, 55, 57, 58, 60, 61, 62, 64, 65, 67, 68, 70, 71, 73, 74, 75, 77, 78, ...
[ "nonn", "easy" ]
A188082
[ 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1...
[ "nonn" ]
A105843
[ 1, 149, 295, 21755, 43069, 3176081, 6287779, 463686071, 917972665, 67694990285, 134017721311, 9883004895539, 19565669338741, 1442851019758409, 2856453705734875, 210646365879832160, 417022675367953000, 30752926567435740000, 60882454150015400000 ]
[ "nonn", "easy" ]
A141778
[ 2, 5, 11, 17, 47, 53, 67, 71, 73, 79, 89, 97, 107, 109, 131, 139, 157, 167, 173, 179, 199, 223, 227, 233, 251, 257, 263, 269, 271, 277, 283, 307, 311, 317, 331, 347, 367, 373, 401, 409, 443, 449, 461, 463, 467, 479, 487, 5...
[ "nonn" ]
A250895
[ 3673, 11029, 33821, 102789, 305429, 890199, 2553537, 7243359, 20421217, 57483879, 162149489, 459536607, 1310548497, 3763833639, 10886111617, 31695302463, 92829953729, 273267490599, 807835524561, 2396325815007, 7127717418673 ]
[ "nonn" ]
A158480
[ 1, 13, 49, 109, 193, 301, 433, 589, 769, 973, 1201, 1453, 1729, 2029, 2353, 2701, 3073, 3469, 3889, 4333, 4801, 5293, 5809, 6349, 6913, 7501, 8113, 8749, 9409, 10093, 10801, 11533, 12289, 13069, 13873, 14701, 15553, 16429, 17329, 18253, ...
[ "nonn", "easy" ]
A105196
[ 1, 1, 4, 2, 12, 27, 6, 44, 162, 256, 24, 200, 945, 2560, 3125, 120, 1096, 6075, 21760, 46875, 46656, 720, 7056, 43848, 188160, 546875, 979776, 823543, 5040, 52272, 354564, 1732864, 6125000, 15023232, 23059204, 16777216, 40320, 438336, 31893...
[ "nonn", "tabl", "easy" ]
A222941
[ 3, 33, 420, 5880, 82320, 1152480, 16134720, 225886080, 3162405120, 44273671680, 619831403520, 8677639649280, 121486955089920, 1700817371258880, 23811443197624320, 333360204766740500, 4667042866734367000 ]
[ "nonn" ]
A212036
[ 0, 0, 3, 0, 3, 10, 0, 0, 28, 31, 0, 0, 34, 338, 78, 0, 0, 34, 1651, 2440, 166, 0, 0, 34, 3967, 39901, 11859, 313, 0, 0, 0, 5395, 373930, 480914, 43943, 540, 0, 0, 0, 5587, 2083264, 12302859, 3668669, 134273, 871, 0, 0, 0, ...
[ "nonn", "tabl" ]
A254518
[ 2977462, 38770022, 412719610, 4179100619, 55061190276, 695661729709, 8348810077730, 102339687375431, 1244134654250986, 15035366666508524, 180762598329110240, 2171453851080392400, 25981429998893240000 ]
[ "nonn" ]
A183344
[ 1, 7, 9, 17, 33, 59, 109, 201, 369, 679, 1249, 2297, 4225, 7771, 14293, 26289, 48353, 88935, 163577, 300865, 553377, 1017819, 1872061, 3443257, 6333137, 11648455, 21424849, 39406441, 72479745, 133311035, 245197221, 450988001, 829496257 ]
[ "nonn" ]
A352300
[ 1, 1, 3, 13, 99, 781, 7563, 84253, 1103595, 16074589, 260443083, 4630046653, 90017588235, 1894771249021, 42957132108075, 1043136555486493, 27024421701469996, 743851294350730100, 21679544916491784000, 666932347454809000000 ]
[ "nonn" ]