id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A177894
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 0, -3, -8, -15, -24, -35, -48, -63, -80, 4, 3, 0, -5, -12, -21, -32, -45, -60, -77, 9, 8, 5, 0, -7, -16, -27, -40, -55, -72, 16, 15, 12, 7, 0, -9, -20, -33, -48, -65, 25, 24, 21, ...
[ "sign", "base", "easy", "look" ]
A188537
[ 177, 240, 1255, 630, 4487, 2040, 12249 ]
[ "nonn", "more" ]
A069534
[ 10, 20, 30, 40, 5, 15, 25, 35, 45, 55, 65, 75, 85, 95, 195, 295, 395, 495, 595, 695, 795, 895, 995, 1995, 2995, 3995, 4995, 5995, 6995, 7995, 8995, 9995, 19995, 29995, 39995, 49995, 59995, 69995, 79995, 89995, 99995, 199995, 299995,...
[ "base", "nonn", "easy" ]
A240374
[ 10, 155, 1729, 36398, 486179, 6436979, 110122847, 1403151574, 20729739995, 314460587672, 4129507235966, 62894928616313, 899396661401712, 12459403539502242, 186844736024568320, 2621133895463594000 ]
[ "nonn" ]
A352627
[ 1, 2, 2, 2, 3, 2, 3, 3, 3, 4, 4, 1, 4, 3, 1, 3, 3, 4, 5, 4, 3, 1, 5, 3, 5, 6, 3, 4, 6, 1, 2, 3, 3, 8, 5, 3, 4, 4, 4, 3, 5, 3, 6, 4, 3, 2, 1, 2, 4, 6, 4, 5, 5, 1, 5, 5, 2, 7, 5, 2, 6, 2, 1, 3...
[ "nonn" ]
A067934
[ 1, 2, 5, 7, 10, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 55, 59, 61, 67, 71, 73, 79, 83, 89, 91, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, ...
[ "nonn" ]
A021501
[ 0, 0, 2, 0, 1, 2, 0, 7, 2, 4, 3, 4, 6, 0, 7, 6, 4, 5, 8, 7, 5, 2, 5, 1, 5, 0, 9, 0, 5, 4, 3, 2, 5, 9, 5, 5, 7, 3, 4, 4, 0, 6, 4, 3, 8, 6, 3, 1, 7, 9, 0, 7, 4, 4, 4, 6, 6, 8, 0, 0, 8, 0, 4, 8...
[ "nonn", "cons" ]
A027106
[ 1, 6, 28, 114, 422, 1498, 5146, 17282, 57088, 186234, 601618, 1928314, 6141164, 19453974, 61349680, 192729074, 603449486, 1883989018, 5866941586, 18229205738, 56526585004, 174967361838, 540701808500, 1668482208274 ]
[ "nonn" ]
A361986
[ 1, 3, -9, 28, -25, -27, -49, 224, 0, -75, -121, -252, -169, -147, 225, 1792, -289, 0, -361, -700, 441, -363, -529, -2016, 0, -507, 0, -1372, -841, 675, -961, 14336, 1089, -867, 1225, 0, -1369, -1083, 1521, -5600, -1681, 1323, -1849,...
[ "sign", "mult" ]
A217914
[ 1, 1, 127, 86526, 171798901, 749206090500, 6090236036084530, 82892803728383740000, 1.7513462567201222e+24, 5.42943405360657e+28, 2.364684125291483e+33, 1.3976200131363997e+38, 1.089798683111769e+43 ]
[ "nonn" ]
A223004
[ 41, 2894, 184475, 21692365, 1388632315, 182298485349, 12067682881753, 1638508895884566, 110552151586138770 ]
[ "nonn" ]
A109332
[ 8, 15, 23, 39, 55, 87, 103, 127, 191, 247, 295, 343, 359, 367, 399, 447, 479, 503, 567, 583, 655, 791, 839, 847, 911, 983, 999, 1119, 1207, 1255, 1303, 1319, 1391, 1423, 1463, 1559, 1631, 1647, 1663, 1687, 1767, 1807, 1903, 1943, ...
[ "nonn" ]
A223905
[ 1, 1, 2, 6, 24, 120, 717, 4824, 34629, 256689, 1935301 ]
[ "nonn", "more" ]
A295996
[ 0, 3, 4, 6, 8, 8, 8, 10, 10, 12, 14, 14, 15, 17, 17, 19, 19, 19, 21, 21, 21, 21, 23, 23, 25, 27, 27, 29, 31, 31, 32, 32, 32, 32, 34, 34, 34, 36, 36, 38, 38, 38, 38, 40, 40, 42, 42, 42, 44, 46, 46, 46, 46, 46, ...
[ "nonn" ]
A088970
[ 3, 6, 12, 25, 50, 100, 201, 402, 804, 1608, 3216, 6433, 12867, 25735, 51471, 102943, 205887 ]
[ "dead" ]
A165510
[ 1, 9, 63, 585, 3951, 38169, 246303, 2501865, 15231951, 164902329, 931798143, 10941169545, 56148296751, 731615910489, 3311061455583, 49365284099625, 189031140702351, 3365269314470649, 10244972816098624, 232054417825788100 ]
[ "sign" ]
A142461
[ 1, 1, 1, 1, 14, 1, 1, 111, 111, 1, 1, 796, 2886, 796, 1, 1, 5597, 52642, 52642, 5597, 1, 1, 39210, 824271, 2000396, 824271, 39210, 1, 1, 274507, 11931033, 58614299, 58614299, 11931033, 274507, 1, 1, 1921592, 165260188, 1483533704, 29307...
[ "nonn", "tabl", "easy" ]
A255478
[ 1, 80, 624, 16480, 221888, 4245888, 66759424, 1158095360, 18967114752, 318729757696, 5260906022912, 87309457787904, 1439402906245120, 23729936541559810, 389928297670440960, 6398667538798480000, 104773970517568230000, 1.7129671443506392e+21, 2.7958316901583754e+22 ]
[ "nonn" ]
A004983
[ 1, -6, -6, -20, -90, -468, -2652, -15912, -99450, -640900, -4229940, -28455960, -194449060, -1346185800, -9423300600, -66591324240, -474463185210, -3404971093860, -24591457900100, -178611641590200, -1303864983608460, -9561676546462040, -70408709114856840 ]
[ "sign", "easy" ]
A125311
[ 1, 1, 1, 1, 1, 2, 1, 1, 2, 5, 1, 1, 2, 5, 14, 1, 1, 2, 5, 15, 42, 1, 1, 2, 5, 15, 51, 132, 1, 1, 2, 5, 15, 52, 188, 429, 1, 1, 2, 5, 15, 52, 202, 731, 1430, 1, 1, 2, 5, 15, 52, 203, 856, 2950, 4862, 1, 1,...
[ "nonn", "tabl" ]
A110871
[ 1, 1, 1, 2, 2, 3, 4, 7, 11, 16, 19, 58, 66, 170, 290 ]
[ "nonn", "more" ]
A042624
[ 29, 1683, 97643, 5664977, 328666309, 19068310899, 1106290698451, 64183928821057, 3723774162319757, 216043085343366980, 12534222724077603000, 727200961081844400000, 4.219018996547105e+22, 2.447758218958403e+24 ]
[ "nonn", "cofr", "frac", "easy" ]
A140291
[ 1, 3, 7, 9, 13, 15, 31, 37, 51, 73, 99, 111, 115, 133, 141, 151 ]
[ "dead" ]
A032884
[ 1, 2, 3, 4, 5, 10, 11, 15, 16, 17, 20, 21, 22, 23, 35, 36, 40, 41, 42, 45, 46, 47, 48, 65, 66, 67, 70, 71, 72, 73, 95, 96, 97, 98, 130, 135, 136, 140, 141, 142, 145, 146, 147, 148, 255, 260, 261, 265, 266, 267, 270, ...
[ "nonn", "base" ]
A259774
[ 1, 0, 0, -1, 1, -1, 1, -1, 2, -2, 2, -3, 4, -4, 4, -6, 7, -7, 8, -10, 12, -13, 14, -17, 21, -22, 24, -29, 33, -36, 40, -46, 53, -58, 63, -73, 83, -90, 99, -113, 127, -138, 152, -171, 191, -209, 228, -255, 285, -309, ...
[ "sign" ]
A257673
[ 1, 0, 1, 0, 3, 1, 0, 6, 6, 1, 0, 13, 21, 9, 1, 0, 24, 62, 45, 12, 1, 0, 48, 162, 174, 78, 15, 1, 0, 86, 396, 576, 376, 120, 18, 1, 0, 160, 917, 1719, 1509, 695, 171, 21, 1, 0, 282, 2036, 4761, 5340, 3285, 1158, 2...
[ "nonn", "tabl" ]
A266453
[ 1, 0, 39, 6152, 2079765, 1362641028, 1511484069811, 2623713101882928, 6717410044413849000 ]
[ "nonn" ]
A153355
[ 4, 6, 12, 16, 18, 22, 28, 30, 36, 40, 46, 48, 54, 70, 72, 76, 78, 82, 84, 88, 90, 96, 100, 102, 114, 120, 124, 132, 142, 144, 148, 154, 162, 166, 168, 172, 184, 186, 202, 204, 208, 210, 214, 222, 226, 246, 250, 252, 256,...
[ "nonn", "easy" ]
A132513
[ 3, 35, 14156, 288178600, 343477808675959740, 2.3986625593551014e+35, 7.677386934398477e+70 ]
[ "frac", "nonn" ]
A053780
[ 4, 434, 505, 18781, 27072, 33633, 1254521, 3360633, 5989895, 9145419, 10411401, 161101161, 390949093, 795303597, 935424539, 25127372152, 77753535777, 1997671767991, 2300809080032, 3754911194573, 6476856586746, 9825337335289 ]
[ "base", "nonn" ]
A186231
[ 1, 15, 210, 3003, 43758, 646646, 9657700, 145422675, 2203961430, 33578000610, 513791607420, 7890371113950, 121548660036300, 1877405874732108, 29065024282889670, 450883717216034200, 7007092303604022000, 109069992321755550000, 1.7001797600110043e+21, 2.6536589497469057e+22, 4.1...
[ "nonn", "easy" ]
A233853
[ 216, 1040, 4640, 22592, 104576, 511232, 2416128, 11843584, 56662016, 278233088, 1340661760, 6590103552, 31886114816, 156834529280, 760657608704, 3742678646784, 18177218576384, 89455627075584, 434806175301632 ]
[ "nonn" ]
A094353
[ 3, 1, 5, 8, 7, 2, 17, 44, 53, 1011, 7262969, 27755899054, 10713771825916682000, 1.4519835030005304e+36, 5.317619734003376e+69 ]
[ "nonn" ]
A388189
[ 1, 1, 8, 4, 7, 5, 3, 1, 6, 7, 6, 1, 5, 4, 4, 5, 4, 4, 5, 2, 6, 7, 0, 4, 0, 4, 2, 9, 0, 7, 7, 9, 7, 7, 9, 6, 6, 8, 6, 6, 3, 4, 1, 4, 9, 3, 8, 6, 4, 0, 7, 1, 5, 2, 9, 1, 3, 3, 2, 6, 8, 2, 5, 0...
[ "nonn", "cons" ]
A253684
[ 11, 23, 5, 1667, 73, 821, 18043, 2393, 20771, 2251, 1006003 ]
[ "nonn", "hard", "more" ]
A372042
[ 83, 89, 131, 137, 191, 193, 197, 199, 223, 229, 307, 311, 313, 317, 331, 337, 383, 389, 433, 439, 443, 449, 457, 461, 463, 467, 503, 509, 541, 547, 571, 577, 677, 683, 751, 757, 821, 823, 827, 829, 853, 857, 859, 863, 877, 881...
[ "nonn" ]
A147769
[ 1, 1767263190, 1.1257183216023296e+24, 1.5522593276193858e+41, 7.667961765084109e+60 ]
[ "nonn" ]
A150693
[ 1, 2, 8, 26, 118, 438, 2078, 8209, 39754, 162831, 797320, 3344263, 16483408, 70313101, 348008609, 1503387856, 7461490857, 32553374801, 161874095473, 711874224388, 3544621282571, 15690913376927, 78205701748159, 348111360116639, 1736283725383760, 7765241828198106, 3...
[ "nonn", "walk" ]
A169164
[ 1, 7, 42, 252, 1512, 9072, 54432, 326592, 1959552, 11757312, 70543872, 423263232, 2539579392, 15237476352, 91424858112, 548549148672, 3291294892032, 19747769352192, 118486616113152, 710919696678912, 4265518180073472 ]
[ "nonn" ]
A159750
[ 37, 47, 65, 157, 235, 353, 905, 1363, 2053, 5273, 7943, 11965, 30733, 46295, 69737, 179125, 269827, 406457, 1044017, 1572667, 2369005, 6084977, 9166175, 13807573, 35465845, 53424383, 80476433, 206710093, 311380123, 469051025, 1204794713 ]
[ "nonn", "easy" ]
A293513
[ 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 2, 1, 0, 1, 0, 0, 1, 1, 0, 2, 0, 0, 2, 0, 1, 1, 0, 1, 1, 0, 0, 2, 0, 1, 2, 1, 0, 1, 1, 0, 1, 0, 0, 2, 1, 1, 2, 0, 0, 2, 0, 1, 2, 0...
[ "nonn", "easy" ]
A261092
[ 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1...
[ "nonn" ]
A294662
[ 0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 29, 55, 88, 90, 111, 200, 211, 400, 518, 654, 888, 889, 1111, 2825, 3131, 4244, 11111, 28222, 31535, 42449, 53355, 90000, 111181, 590000, 618181, 900000, 1111115, 9000000, 11111115, 60660090, 114144155 ]
[ "nonn", "base" ]
A213065
[ -1, 0, 0, 513, 281474976378880, 7.52316384526264e+83 ]
[ "sign" ]
A040242
[ 16, 10, 1, 2, 3, 4, 3, 2, 1, 10, 32, 10, 1, 2, 3, 4, 3, 2, 1, 10, 32, 10, 1, 2, 3, 4, 3, 2, 1, 10, 32, 10, 1, 2, 3, 4, 3, 2, 1, 10, 32, 10, 1, 2, 3, 4, 3, 2, 1, 10, 32, 10, 1, 2, 3, 4, 3, 2, 1, 10, ...
[ "nonn", "cofr", "easy" ]
A308065
[ 0, 1, 2, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 6...
[ "nonn" ]
A123947
[ 0, 1, 3, 9, 29, 90, 284, 890, 2797, 8780, 27574, 86581, 271881, 853732, 2680833, 8418132, 26433983, 83005929, 260648825, 818469251, 2570093890, 8070410030, 25342077544, 79577232067, 249882270390, 784660981474, 2463931734897 ]
[ "nonn" ]
A340485
[ 1, 0, 7, 3, 2, 5, 3, 7, 1, 6, 4, 2, 0, 3, 0, 2, 3, 9, 6, 9, 5, 0, 6, 0, 2, 4, 8, 5, 0, 2, 1, 8, 2, 8, 8, 0, 3, 2, 4, 7, 2, 7, 9, 8, 9, 8, 2, 0, 4, 3, 6, 1, 5, 7, 4, 8, 7, 9, 3, 3, 8, 9, 2, 4...
[ "nonn", "cons" ]
A362291
[ 1, 2, 68, 26098, 1408886, 12369296230, 673890139470, 33193434883028584 ]
[ "nonn", "hard", "more" ]
A168569
[ 0, 9, 36, 117, 360, 1089, 3276, 9837, 29520, 88569, 265716, 797157, 2391480, 7174449, 21523356, 64570077, 193710240, 581130729, 1743392196, 5230176597, 15690529800, 47071589409, 141214768236, 423644304717, 1270932914160 ]
[ "nonn", "easy" ]
A316732
[ 1, 99, 40, 25, 337, 42, 275, 6652, 3399, 8908, 160954, 203593, 486192, 4585409, 9222281, 23994611, 147546594, 384343255, 1092999534, 5199834676, 15601374407, 47419625605, 194578898512, 628086581739, 1998254845643, 7549906242628 ]
[ "nonn" ]
A047926
[ 1, 3, 8, 22, 63, 185, 550, 1644, 4925, 14767, 44292, 132866, 398587, 1195749, 3587234, 10761688, 32285049, 96855131, 290565376, 871696110, 2615088311, 7845264913, 23535794718, 70607384132, 211822152373, 635466457095, 1906399371260 ]
[ "nonn", "easy" ]
A258396
[ 1430, 175032, 12597000, 698377680, 33079524324, 1411221754800, 55928745100800, 2100173331484800, 75727786603836510, 2646827388046104000, 90290940344491880000, 3.021580012515766e+21, 9.958382888153619e+22, 3.2420498845730754e+24 ]
[ "nonn" ]
A328093
[ 1, 10, 40, 80, 90, 112, 260, 480, 700, 1050, 1520, 2160, 2980, 3920, 5920, 8160, 9530, 12800, 16620, 20560, 26672, 30720, 38960, 47690, 52020, 66250, 77380, 87940, 101600, 112720, 134304, 147920, 171020, 185760, 220160, 230400, 263550, 292080...
[ "nonn" ]
A356775
[ 1, 1, 5, 1, 11, 1, 21, -8, 36, 1, 22, 1, 85, -89, 137, 1, -23, 1, 302, -349, 287, 1, 23, -24, 456, -944, 1177, 1, -903, 1, 2113, -2078, 970, -559, 709, 1, 1331, -4003, 4293, 1, -3323, 1, 9153, -10694, 2301, 1, 5869, -48, ...
[ "sign" ]
A130950
[ 0, 1, 2, 3, 6, 5, 4, 7, 8, 16, 19, 15, 12, 13, 14, 9, 11, 20, 18, 10, 17, 21, 22, 44, 47, 53, 56, 60, 43, 52, 40, 34, 32, 41, 31, 35, 36, 42, 51, 37, 25, 24, 39, 28, 29, 57, 61, 33, 55, 49, 50, 38, 23, 30, 54...
[ "nonn" ]
A220498
[ 0, 2, 2, 2, 4, 2, 4, 4, 4, 6, 4, 6, 8, 2, 4, 4, 6, 10, 6, 14, 8, 10, 14, 8, 12, 14, 4, 8, 8, 10, 16, 12, 22, 16, 16, 18, 12, 14, 16, 16, 16, 10, 12, 20, 14, 22, 22, 18, 18, 24, 18, 28, 18, 20, 28, 22, 28,...
[ "nonn" ]
A220264
[ 1, 4, 12, 30, 60, 180, 210, 420, 1260, 6300, 2310, 4620, 13860, 69300, 485100, 30030, 60060, 180180, 900900, 6306300, 69369300, 510510, 1021020, 3063060, 15315300, 107207100, 1179278100, 15330615300, 9699690, 19399380, 58198140, 290990700, 2036934900, ...
[ "nonn", "easy" ]
A235992
[ 0, 1, 4, 8, 9, 12, 15, 16, 20, 21, 24, 25, 28, 32, 33, 35, 36, 39, 40, 44, 48, 49, 51, 52, 55, 56, 57, 60, 64, 65, 68, 69, 72, 76, 77, 80, 81, 84, 85, 87, 88, 91, 92, 93, 95, 96, 100, 104, 108, 111, 112, 115, 116...
[ "nonn" ]
A030515
[ 12, 18, 20, 28, 32, 44, 45, 50, 52, 63, 68, 75, 76, 92, 98, 99, 116, 117, 124, 147, 148, 153, 164, 171, 172, 175, 188, 207, 212, 236, 242, 243, 244, 245, 261, 268, 275, 279, 284, 292, 316, 325, 332, 333, 338, 356, 363, 369...
[ "nonn", "easy", "changed" ]
A192083
[ 0, 4, 6, 32, 10, 14, 192, 108, 22, 26, 1024, 34, 38, 46, 500, 1458, 58, 62, 5120, 74, 82, 86, 94, 1372, 106, 118, 122, 24576, 134, 142, 146, 158, 17496, 166, 178, 194, 202, 206, 214, 218, 226, 5324, 18750, 254, 114688, 262, ...
[ "nonn" ]
A199739
[ 1, 4, 4, 0, 9, 8, 5, 1, 6, 3, 2, 1, 0, 3, 7, 3, 7, 7, 8, 4, 5, 1, 3, 8, 0, 4, 5, 4, 2, 3, 4, 8, 2, 8, 4, 2, 7, 0, 0, 4, 4, 4, 9, 0, 2, 5, 8, 2, 4, 3, 7, 6, 1, 9, 4, 5, 8, 1, 2, 3, 9, 0, 7, 5...
[ "nonn", "cons" ]
A182922
[ 1, 1, 1, 1, 8, 8, 144, 144, 1152, 10368, 518400, 518400, 6220800, 6220800, 609638400, 9144576000, 146313216000, 146313216000, 2633637888000, 2633637888000, 52672757760000, 1106127912960000, 267682954936320000, 267682954936320000, 6424390918471680000, 160609772961792...
[ "nonn" ]
A363243
[ 2, 5, 31, 32, 35, 36, 40, 43, 44, 47, 48, 52, 55, 56, 59, 63, 67, 68, 71, 75, 79, 80, 83, 87, 91, 92, 95, 96, 100, 103, 104, 107, 108, 112, 115, 116, 119, 123, 127, 128, 131, 135, 139, 140, 143, 147, 151, 152, 155, 156...
[ "nonn", "base" ]
A366883
[ 0, 0, 0, 2, 1, 2, 4, 7, 5, 7, 13, 19, 26, 22, 27, 45, 61, 78, 99, 87, 107, 166, 213, 267, 324, 396, 361, 434, 644, 806, 975, 1167, 1385, 1641, 1541, 1819, 2611, 3200, 3786, 4451, 5196, 6054, 7025, 6744, 7823, 10983, 13190, ...
[ "nonn" ]
A173867
[ 3, 13, 41, 131, 421, 1429, 4861, 16787, 58771, 208009, 742897, 2674429, 9694843, 35357657, 129644783, 477638699, 1767263171, 6564120403, 24466266973, 91482563633, 343059613639, 1289904147227, 4861946401451, 18367353072143, 69533550915991, 263747951750333, 10022422...
[ "nonn" ]
A215396
[ 1, 1, 1, 3, 5, 17, 35, 102, 240, 665, 1661, 4501, 11466, 30366, 78990, 208272, 543065, 1427121, 3733443, 9798235, 25661293, 67307229, 176371866, 462472478 ]
[ "nonn" ]
A177524
[ 1, 1, 2, 6, 24, 120, 715, 4970, 39480, 352800, 3502800, 38255900, 455795100, 5883052500, 81774966000, 1217871018000, 19346879737625, 326549862671250, 5835951345093750, 110091785625495000, 2186122850020215000, 45580964489553560000, 995625115672520600000 ]
[ "nonn" ]
A199714
[ 0, 9, 23, 30, 35, 49, 58, 73, 94, 113 ]
[ "nonn", "fini", "full" ]
A062782
[ 1, 1, 6, 13440, 81729648000, 4.963587213865916e+21, 7.973107998754741e+36, 7.386157905953515e+56 ]
[ "easy", "nonn" ]
A136535
[ 1, 1, 2, 1, 7, 3, 1, 15, 21, 4, 1, 26, 76, 46, 5, 1, 40, 200, 250, 85, 6, 1, 57, 435, 925, 645, 141, 7, 1, 77, 833, 2695, 3185, 1421, 217, 8, 1, 100, 1456, 6664, 11956, 9016, 2800, 316, 9, 1, 126, 2376, 14616, 37044, ...
[ "nonn", "tabl" ]
A375173
[ 1, 1, 7, 79, 1225, 24121, 575311, 16105447, 517380529, 18752175505, 756760712311, 33645775575391, 1633792107752377, 86022043957561620, 4880923725657950000, 296882100064302400000, 1.9269430292162925e+22, 1.329278651404124e+24 ]
[ "nonn", "easy" ]
A129440
[ 0, 1, 5, 55, 56980, 61667666167030, 7.817201081592107e+40 ]
[ "nonn" ]
A076237
[ 0, 0, 0, 0, 3, 3, 3, 1, 8, 8, 10, 9, 8, 8, 8, 7, 6, 6, 7, 8, 7, 6, 5, 4, 5, 4, 3, 4, 5, 4, 3, 4, 3, 2, 2, 2, 2, 1, 0, 0, 40, 0, 0, 43, 43, 44, 44, 45, 45, 45, 47, 48, 49, 50, 50, 50, 53, 53, 53, 55,...
[ "nonn" ]
A317649
[ 4, 6, 7, 10, 14, 17, 18, 22, 23, 26, 31, 34, 38, 43, 46, 47, 49, 50, 54, 58, 62, 71, 73, 74, 79, 82, 86, 89, 94, 97, 98, 103, 106, 113, 118, 122, 127, 134, 137, 142, 146, 157, 158, 162, 166, 167, 178, 191, 193, 194, ...
[ "nonn" ]
A080567
[ 1, 3, 7, 15, 47, 111, 367, 879, 2927, 19311, 52079, 314223, 1362799, 3459951, 11848559, 78957423, 615828335, 1689570159, 10279504751, 44639243119, 113358719855, 663114533743, 2862137789295, 20454323833711, 301929300544367 ]
[ "nonn", "easy" ]
A180293
[ 1, 50, 195, 392, 672, 1080, 1650, 2420, 3432, 4732, 6370, 8400, 10880, 13872, 17442, 21660, 26600, 32340, 38962, 46552, 55200, 65000, 76050, 88452, 102312, 117740, 134850, 153760, 174592, 197472, 222530, 249900, 279720, 312132, 347282, 385320 ]
[ "nonn" ]
A197045
[ 8, 648, 24074, 855746, 31096170, 1146653592, 42346212260, 1557004531014, 57353100417462, 2112382332611192, 77779202686257780, 2864298209626136600, 105477500014169550000, 3.8842160110477823e+21, 1.4303713356417761e+23 ]
[ "nonn" ]
A096137
[ 1, 1, 2, 3, 1, 2, 3, 3, 4, 5, 6, 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9, 10, 1, 2, 3, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 12, 12, 13, 14, 15, 1, 2, 3, 3, ...
[ "nonn", "easy", "look", "tabf" ]
A193502
[ 6, 140, 12163, 3951864, 4827971048, 22259396528054, 386289720759306940, 2.527934264358449e+22, 6.231309566262596e+27 ]
[ "nonn" ]
A004977
[ 1, 2, 3, 5, 8, 10, 13, 16, 23, 32, 44, 56, 76, 102, 132, 174, 227, 296, 383, 505, 679, 892, 1151, 1516, 1988, 2602, 3400, 4410, 5759, 7519, 9809, 12810, 16710, 21758, 28356, 36955, 48189, 62805, 81803, 106647, 139088, 181301, 236453...
[ "nonn", "base", "changed" ]
A335640
[ 4, 9, 16, 25, 36, 45, 49, 64, 81, 96, 100, 121, 144, 169, 175, 196, 225, 256, 288, 289, 320, 324, 361, 400, 441, 484, 529, 576, 625, 640, 676, 729, 784, 841, 891, 900, 961, 1024, 1089, 1156, 1200, 1225, 1296, 1350, 1369, 1444,...
[ "nonn" ]
A209209
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[ "nonn" ]
A042648
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[ "nonn", "frac", "easy" ]
A360830
[ 1, 3, 6, 42, 84, 252, 2772, 36036, 612612, 11639628, 267711444, 803134332, 23290895628, 722017764468, 1444035528936, 53429314570632, 2190601897395912, 94195881588024220, 4427206434637138000, 30990445042459967000 ]
[ "nonn", "base" ]
A222890
[ 1, 2, 3, 7, 20, 67, 255, 1080, 5016, 25249, 136289, 780658, 4696002, 29374011, 189373083, 1248978556, 8376922028, 56874440053, 389553674037, 2685020105574, 18589701176694, 129115803986575, 898809701733551, 6266899328414512 ]
[ "nonn" ]
A323777
[ 2, 2, 0, 6, 7, 6, 0, 4, 1, 3, 2, 3, 7, 4, 0, 6, 9, 6, 3, 1, 2, 8, 2, 2, 2, 6, 9, 9, 9, 8, 0, 5, 0, 1, 6, 7, 1, 8, 7, 6, 8, 1, 0, 3, 1, 0, 2, 7, 5, 7, 4, 0, 3, 9, 5, 4, 1, 7, 3, 3, 5, 1, 2, 7...
[ "nonn", "cons" ]
A033633
[ 2, 3, 5, 7, 11, 13, 17, 0, 4, 10, 12, 18, 3, 5, 9, 15, 2, 4, 10, 14, 16, 3, 7, 13, 2, 6, 8, 12, 14, 18, 13, 17, 4, 6, 16, 18, 5, 11, 15, 2, 8, 10, 1, 3, 7, 9, 2, 14, 18, 1, 5, 11, 13, 4, 10, 16, 3, 5, ...
[ "nonn", "easy" ]
A071490
[ 1, 0, 2, 1, 3, 0, 1, 3, 4, 0, 2, 3, 4, 2, 1, 3, 2, 0, 3, 4, 1, 3, 4, 6, 2, 0, 1, 2, 5, 3, 1, 6, 7, 8, 1, 3, 4, 1, 6, 0, 7, 3, 4, 7, 2, 1, 6, 5, 1, 3, 4, 5, 8, 0, 6, 5, 1, 6, 5, 8, 3, 9, 1, 7...
[ "nonn" ]
A166267
[ 0, 1, 1, 2, 2, 4, 3, 4, 4, 7, 5, 8, 6, 7, 10, 11, 10, 8, 13, 12, 12, 14, 16, 17, 11, 14, 17, 20, 16, 17, 19, 21, 23, 17, 17, 19, 24, 24, 25, 18, 29, 26, 29, 26, 26, 29, 35, 29, 26, 40, 29, 33, 33, 38, 36, 3...
[ "nonn", "base", "easy" ]
A352485
[ 2, 3, 2, 9, 8, 1, 4, 5, 8, 3, 1, 3, 6, 0, 9, 6, 9, 3, 3, 3, 4, 6, 3, 9, 7, 5, 9, 0, 8, 1, 4, 5, 3, 0, 2, 1, 0, 1, 8, 9, 6, 9, 6, 3, 8, 0, 9, 6, 6, 9, 5, 1, 7, 1, 4, 1, 6, 8, 1, 4, 6, 4, 9, 5...
[ "nonn", "cons" ]
A196196
[ 1, 1, 1, 2, 5, 15, 97, 528, 7525, 81413, 2330257, 53229494, 2883887781, 143434131379, 14268520503521, 1569684574492244, 282300076226827260, 69232924049740235000, 2.233727470223724e+22, 1.2261557957001827e+25, 7.06917047348052e+27 ]
[ "nonn" ]
A133228
[ 0, 0, 1, 2, 4, 9, 19, 46, 110, 291, 822, 2455, 7740, 25635, 88849, 320749, 1202674, 4670156, 18741145, 77553119, 330321299, 1445829174, 6493985903, 29891948760, 140843699641, 678576973614, 3339785593878 ]
[ "nonn" ]
A005906
[ 1, 16, 68, 180, 375, 676, 1106, 1688, 2445, 3400, 4576, 5996, 7683, 9660, 11950, 14576, 17561, 20928, 24700, 28900, 33551, 38676, 44298, 50440, 57125, 64376, 72216, 80668, 89755, 99500, 109926, 121056, 132913, 145520, 158900, 173076, 188071, ...
[ "nonn", "easy" ]
A301705
[ 0, 0, 1, 4, 4, 8, 11, 12, 14, 20, 25, 26, 24, 42, 37, 40, 46, 46, 45, 50, 62, 62, 69, 72, 80, 78, 79, 74, 88, 94, 97, 102, 94, 104, 105, 106, 102, 116, 137, 130, 126, 132, 121, 122, 134, 152, 155, 160, 164, 156, 143,...
[ "nonn", "easy" ]
A208132
[ 2, 4, 17, 15, 10, 26, 12, 19, 112, 34, 163, 91, 101, 135, 303, 97, 54, 229, 459, 70, 679, 1075, 340, 1041, 550, 836, 1308, 2780, 606, 875, 4057, 2398, 772, 1891, 1065, 3900, 2610, 8065, 7476, 4161, 6023, 5815, 1481, 351, 5385, ...
[ "nonn" ]
A025038
[ 1, 1, 462, 2858856, 96197645544, 11423951396577720, 3.708580189773818e+21, 2.77920257705612e+27, 4.263127221846888e+33, 1.2233832241625685e+40, 6.124728646082345e+46 ]
[ "nonn" ]
A335073
[ 1, 2, 3, 5, 6, 7, 8, 12, 14, 15, 16, 18, 19, 20, 21, 29, 30, 32, 33, 35, 36, 37, 38, 42, 44, 45, 49, 51, 52, 53, 54, 70, 71, 72, 73, 77, 78, 79, 80, 84, 85, 86, 87, 89, 91, 92, 93, 101, 103, 105, 106, 108, 109, ...
[ "nonn" ]
A082396
[ 1, 2, 8, 10, 18, 36, 40, 52, 56, 60, 84, 98, 114, 128, 132, 140, 150, 153, 165, 171, 210, 230, 266, 286, 304, 320, 324, 399, 432, 450, 459, 495, 525, 544, 551, 560, 572, 588, 589, 600, 675, 756, 760, 825, 837, 858, 891, 92...
[ "nonn" ]
A183131
[ 1, 3, 45, 6930, 11006901, 170914738743, 25094213868636460, 3.4223931232325024e+22, 4.2938012422415414e+29, 4.927641339643707e+37, 5.154022123415381e+46 ]
[ "nonn" ]