id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A144833
[ 18, 29, 47, 76, 1364, 271443, 710647, 12752043, 20633239, 33385282, 54018521, 2537720636, 62113250390418, 1803423556807921, 221806434537978700, 6.677147784050433e+23, 3.136838145051481e+25 ]
[ "nonn", "base" ]
A242291
[ 35, 56, 120, 165, 220, 286, 560, 680, 1330, 1540, 1771, 2300, 2600, 2925, 3654, 4495, 4960, 6545, 7140, 7770, 9880, 11480, 12341, 14190, 15180, 16215, 18424, 19600, 20825, 22100, 23426, 27720, 29260, 30856, 35990, 39711, 43680, 45760, 47905, 52394, 54740 ]
[ "nonn", "easy" ]
A179732
[ 0, 90720, 1814400, 24948000, 299376000, 3405402000, 38140502400, 429080652000, 4722157440000 ]
[ "nonn", "more" ]
A170173
[ 1, 20, 380, 7220, 137180, 2606420, 49521980, 940917620, 17877434780, 339671260820, 6453753955580, 122621325156020, 2329805177964380, 44266298381323220, 841059669245141100, 15980133715657683000 ]
[ "nonn" ]
A270991
[ 3, 9, 23, 1, 51, -11, 79, -43, 171, -163, 311, -203, 331, -223, 399, -431, 767, -711, 827, -587, 851, -775, 1091, -915, 1291, -1379, 1735, -1379, 1707, -1591, 1895, -1863, 2567, -2615, 2859, -2295, 2767, -2908, 3520, -3119, 3547, -3364, 4076, -3827, 4207 ]
[ "sign", "easy" ]
A240240
[ 3, 9, 13, 19, 20, 33, 51, 65, 73, 99, 119, 129, 163, 170, 174, 193, 201, 203, 220, 243, 260, 269, 287, 289, 339, 362, 377, 393, 450, 451, 513, 532, 559, 579, 615, 649, 696, 702, 714, 723, 740, 771, 801, 883, 909, 940, 969, 975, 1059, 1112, 1153, 1155, 1156, 1164, 1251, 1299, 1325, 1332, 1353, 1424, 1455, 1459, 1569, 1605, 1615, 1683, 1690, 1716, 1801, 1869, 1919, 1923 ]
[ "nonn" ]
A004714
[ 1, 4, 5, 6, 7, 11, 12, 14, 15, 16, 18, 19, 20, 21, 24, 25, 27, 28, 29, 32, 34, 35, 36, 37, 38, 39, 40, 42, 45, 47, 50, 51, 52, 53, 54, 60, 62, 64, 65, 66, 67, 68, 71, 72, 73, 76, 77, 78, 81, 82, 90, 91, 98, 100, 101, 102 ]
[ "nonn" ]
A151783
[ 1, 1, 4, 1, 4, 4, 16, 1, 4, 4, 16, 4, 16, 16, 64, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64, 64, 256, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64, 64, 256, 4, 16, 16, 64, 16, 64, 64, 256, 16, 64, 64, 256, 64, 256, 256, 1024, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64 ]
[ "nonn" ]
A294957
[ 1, 1, 5, 32, 300, 3533, 51650, 894929, 17981196, 410826036, 10518152538, 298209605418, 9273131902539, 313758357802886, 11474239675400172, 450962279143408830, 18954601400362303000, 848385358833157300000, 4.028527986174462e+22 ]
[ "nonn" ]
A250561
[ 2, 5, 8, 8, 25, 14, 13, 60, 83, 32, 18, 117, 302, 297, 62, 25, 200, 761, 1516, 989, 128, 32, 321, 1648, 5105, 7126, 3113, 254, 41, 480, 3125, 13732, 31525, 30780, 9611, 512, 50, 681, 5446, 31173, 106362, 177421, 127586, 29257, 1022, 61, 940, 8843, 63400, 290909 ]
[ "nonn", "tabl" ]
A101014
[ 1, 3, 40, 52, 63, 196, 237, 783, 3913, 4435, 12537, 19035 ]
[ "nonn", "hard", "more" ]
A193209
[ 1, 1, 2, 11, 142, 3394, 128368, 7003110, 518966378, 50079318914, 6097188090560, 913799530877734, 165277883587449760, 35492379675559090000, 8.926289062300717e+21, 2.598758767007565e+24, 8.670876148979341e+26 ]
[ "nonn" ]
A003502
[ 48, 140, 1050, 1575, 2024, 5775, 8892, 9504, 62744, 186615, 196664, 199760, 266000, 312620, 526575, 573560, 587460, 1000824, 1081184, 1139144, 1140020, 1173704, 1208504, 1233056, 1236536, 1279950, 1921185, 2036420, 2102750, 2140215, 2171240, 2198504, 2312024 ]
[ "nonn", "nice" ]
A195518
[ 1, 1, 9, 369, 121367, 286168923, 5151383545261, 720374496860187900, 7.984236107527304e+23 ]
[ "nonn" ]
A027031
[ 1, 3, 9, 31, 105, 351, 1157, 3755, 12013, 37951, 118613, 367383, 1129345, 3449823, 10482869, 31713863, 95589753, 287224199, 860773781, 2573894583, 7681972113, 22890634939, 68116073369, 202458285647, 601159897137 ]
[ "nonn" ]
A021274
[ 1, 22, 337, 4482, 55533, 660774, 7667929, 87542794, 988535845, 11078416206, 123498755601, 1371575734386, 15192048468637, 167950256294518, 1854154604388553, 20449314929530456, 225371378475017120, 2482516477226907000, 27335131761510250000, 300906053472728000000, 3.311723420968932e+21 ]
[ "nonn", "easy" ]
A212163
[ 1, 0, 2, 0, 0, 3, 0, 0, 6, 4, 0, 0, 6, 48, 5, 0, 0, 6, 1056, 180, 6, 0, 0, 6, 45696, 32940, 480, 7, 0, 0, 6, 4034304, 30847500, 393600, 1050, 8, 0, 0, 6, 739642368, 148039757460, 3312560640, 2735250, 2016, 9 ]
[ "nonn", "tabl" ]
A064736
[ 1, 2, 6, 3, 12, 4, 20, 5, 35, 7, 56, 8, 72, 9, 90, 10, 110, 11, 143, 13, 182, 14, 210, 15, 240, 16, 272, 17, 306, 18, 342, 19, 399, 21, 462, 22, 506, 23, 552, 24, 600, 25, 650, 26, 702, 27, 756, 28, 812, 29, 870, 30, 930, 31, 992, 32, 1056, 33, 1122, 34, 1224, 36 ]
[ "nonn", "easy", "nice" ]
A070965
[ 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, -1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, -1, 2, -1, 2, 0, 0, 0, 0, 1, 0, -1, -1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 2, 0, 1, 1, 1, -1, -1, 0, 1, -1, 2, 3, 1, 0, 0, 1, 0, 0, 1, -1, 2, 1, 0, -1, 0, -1, -2, 2, -1, 1, 1, 0, 1, 1, 2, 1, 3, 0, 1, -1, -2, 0, 2, 2, 2, 1, 0, -1, 0, 1, 0, 2, -1, 0 ]
[ "sign" ]
A082172
[ 1, 1, 7, 1, 26, 315, 1, 63, 2600, 45682, 1, 124, 11655, 675194, 15646589, 1, 215, 37944, 4861458, 366349152, 10567689552, 1, 342, 100835, 23641468, 3882676581, 361884843866, 12503979423607, 1, 511, 232560, 89076650, 26387681120, 5318920238688, 591934698991168, 23841011541867520 ]
[ "easy", "nonn", "tabl" ]
A073491
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19, 23, 24, 25, 27, 29, 30, 31, 32, 35, 36, 37, 41, 43, 45, 47, 48, 49, 53, 54, 59, 60, 61, 64, 67, 71, 72, 73, 75, 77, 79, 81, 83, 89, 90, 96, 97, 101, 103, 105, 107, 108, 109, 113, 120, 121, 125, 127, 128, 131, 135 ]
[ "nonn", "nice" ]
A282526
[ 64, 1529, 29433, 747184, 17100576, 398640091, 9355397095, 218250094269, 5103468618577, 119296756793024, 2788200542969423, 65174770349505700, 1523396904519309800, 35608166348490560000, 832315259073835400000 ]
[ "nonn" ]
A383343
[ 0, 0, 1, 8, 42, 172, 611, 2004, 6292, 19304, 58533, 176464, 530558, 1593204, 4781575, 14347196, 43044648, 129137680, 387417545, 1162258008, 3486780370, 10460348540, 31381054251, 94143172708, 282429529532, 847288601592, 2541865819501, 7625597475104, 22876792443942, 68630377352644, 205891132081103 ]
[ "nonn", "easy" ]
A157108
[ 1, 1, 1, 1, 4, 1, 1, 9, 36, 1, 1, 16, 276, 560, 1, 1, 25, 1225, 19600, 12650, 1, 1, 36, 4005, 280840, 2555190, 376992, 1, 1, 49, 10731, 2421090, 146475945, 534017484, 13983816, 1, 1, 64, 24976, 14885696, 4053946260, 147055790784, 163995687856, 621216192, 1 ]
[ "nonn", "tabl" ]
A294925
[ 2, 6, 30, 210, 15810, 292110, 16893030, 984016110, 17088913842, 2446241358990, 1098013758964122 ]
[ "nonn", "more" ]
A073231
[ 5, 0, 0, 4, 7, 3, 5, 0, 0, 5, 6, 3, 6, 3, 6, 8, 4, 0, 5, 4, 5, 1, 3, 4, 9, 0, 1, 3, 3, 7, 9, 0, 4, 5, 7, 2, 8, 0, 3, 4, 5, 3, 2, 1, 5, 3, 4, 2, 2, 8, 3, 0, 0, 6, 4, 9, 7, 9, 0, 9, 3, 5, 2, 7, 8, 3, 7, 5, 7, 3, 2, 1, 1, 6, 2, 6, 1, 4, 3, 3, 4, 4, 3, 5, 1, 0, 6, 5, 0, 8, 2, 6, 5, 0, 9, 6, 5, 7, 5, 8, 9, 9, 3, 4 ]
[ "cons", "nonn" ]
A382673
[ 1, 1, 1, 1, 4, 1, 1, 10, 10, 1, 1, 22, 52, 22, 1, 1, 46, 208, 208, 46, 1, 1, 94, 736, 1372, 736, 94, 1, 1, 190, 2440, 7516, 7516, 2440, 190, 1, 1, 382, 7792, 37012, 60316, 37012, 7792, 382, 1, 1, 766, 24328, 170668, 418996, 418996, 170668, 24328, 766, 1, 1, 1534, 74896, 754132, 2653036, 3964684, 2653036, 754132, 74896, 1534, 1 ]
[ "nonn", "tabl" ]
A155386
[ 1, 4, 10, 45, 176, 869, 4190, 22684, 124296, 729069, 4981537, 38867913, 351596326 ]
[ "nonn" ]
A201815
[ 393, 4145, 23857, 90609, 263201, 637393, 1355145, 2613857, 4675609, 7876401, 12635393, 19464145, 28975857, 41894609, 59064601, 81459393, 110191145, 146519857, 191862609, 247802801, 316099393, 398696145, 497730857, 615544609 ]
[ "nonn" ]
A033210
[ 13, 17, 29, 53, 61, 101, 113, 157, 173, 181, 233, 257, 269, 277, 313, 337, 373, 389, 433, 521, 569, 601, 641, 653, 673, 677, 701, 757, 797, 809, 829, 857, 881, 937, 953, 997, 1013, 1049, 1069, 1093, 1109, 1117 ]
[ "nonn", "easy" ]
A166786
[ 6, 31, 112, 317, 750, 1559, 2944, 5165, 8550, 13503, 20512, 30157, 43118, 60183, 82256 ]
[ "nonn", "more" ]
A164736
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 3, 0, 5, 0, 6, 0, 6, 1, 6, 3, 6, 5, 6, 6, 6, 6, 7, 6, 9, 6, 11, 6, 12, 6, 12, 7, 12, 9, 12, 11, 12, 12, 12, 12, 13, 12, 15, 12, 17, 12, 18, 12, 18, 13, 18, 15, 18, 17, 18, 18, 18, 18, 19, 18, 21, 18, 23, 18, 24, 18, 24, 19, 24, 21, 24, 23, 24, 24, 24 ]
[ "base", "nonn" ]
A084356
[ 1, 0, 0, 0, 0, 1, 5, 16, 50, 137, 377, 995, 2617, 6785, 17630, 45646, 118595, 308645, 806617, 2115455, 5572438, 14737430, 39139779, 104354064, 279293860, 750182992, 2021884234, 5466813137, 14826008106, 40322237818, 109957234707 ]
[ "nonn" ]
A149355
[ 1, 1, 4, 12, 43, 145, 597, 2275, 9074, 37089, 156211, 648877, 2751041, 11870673, 51348956, 222248568, 975497005, 4308619931, 19026532763, 84456709317, 377858527555, 1693033357949, 7596253980354, 34265491415383, 155101324617082, 702483816158325, 3190205461239309, 14540514604960278 ]
[ "nonn", "walk" ]
A102716
[ 1, 1, 1, 1, 3, 1, 1, 4, 4, 1, 1, 7, 12, 7, 1, 1, 6, 18, 18, 6, 1, 1, 12, 24, 42, 24, 12, 1, 1, 8, 32, 48, 48, 32, 8, 1, 1, 15, 56, 120, 144, 120, 56, 15, 1, 1, 13, 91, 224, 312, 312, 224, 91, 13, 1, 1, 18, 78, 360, 576, 728, 576, 360, 78, 18, 1, 1, 12, 72, 288, 864, 1152, 1152, 864 ]
[ "nonn", "tabl" ]
A374453
[ 1, 2, 6, 36, 547, 26672, 5120069, 4581266029, 21912279450653, 627026135401140200, 1.1804301504047022e+23, 1.5875810712898966e+29, 1.6410973278890067e+36 ]
[ "nonn", "more" ]
A001644
[ 3, 1, 3, 7, 11, 21, 39, 71, 131, 241, 443, 815, 1499, 2757, 5071, 9327, 17155, 31553, 58035, 106743, 196331, 361109, 664183, 1221623, 2246915, 4132721, 7601259, 13980895, 25714875, 47297029, 86992799, 160004703, 294294531, 541292033, 995591267, 1831177831 ]
[ "nonn", "easy", "changed" ]
A091675
[ 1, 3, 21, 22, 26, 29, 31, 55, 256, 258, 262, 266, 269, 271, 282, 286, 287, 302, 312, 413, 479, 511, 519, 551, 555, 719, 795, 799, 1026, 1029, 1034, 1037, 1066, 1549, 1790, 2863, 3087, 3119, 4096, 4098, 4102, 4104, 4106, 4108, 4109, 4113, 4114, 4116, 4117 ]
[ "base", "nonn" ]
A150586
[ 1, 2, 7, 26, 110, 479, 2172, 10002, 46834, 221461, 1056587, 5074301, 24505397, 118882368, 578908059, 2828055381, 13852580674, 68010146230, 334558354721, 1648583112673, 8135656937555, 40200921378838, 198871293465675, 984787005486642, 4880863318364261, 24209845939798548, 120168684450652900 ]
[ "nonn", "walk" ]
A024736
[ 1, 2, 4, 9, 20, 44, 97, 230, 540, 1257, 2920, 7128, 17225, 41276, 98848, 244857, 602368, 1472564, 3594009, 9001188, 22402820, 55447385, 137104808, 345794100, 868000657, 2169191678, 5413976096, 13735048385, 34694002916, 87290093640, 219428919825 ]
[ "nonn" ]
A363036
[ 1, 1, 1, 1, 9, 6, 1, 49, 306, 114, 1, 225, 8550, 26376, 5256, 1, 961, 194850, 3311250, 4669200, 507720 ]
[ "nonn", "tabl", "more" ]
A241735
[ 0, 0, 0, 1, 1, 2, 4, 5, 7, 10, 15, 19, 28, 34, 46, 61, 81, 101, 137, 168, 218, 273, 349, 431, 550, 676, 849, 1043, 1298, 1579, 1959, 2373, 2913, 3526, 4301, 5178, 6293, 7544, 9109, 10895, 13091, 15591, 18666, 22158, 26402, 31269, 37120, 43813, 51853, 61027 ]
[ "nonn", "easy" ]
A367520
[ 1, 1, 3, 15, 55, 364, 1428, 10659, 43263, 345345, 1430715, 11920740, 50067108, 429757960, 1822766520, 15991836267, 68328754959, 609599676595, 2619631042665, 23682737320935, 102240109897695, 934272656316720, 4048514844039120, 37325172122483700 ]
[ "nonn" ]
A142900
[ 83, 461, 587, 839, 1091, 1217, 1721, 1847, 1973, 2099, 2351, 2477, 2729, 3359, 3863, 3989, 4241, 4493, 4871, 5501, 5879, 6131, 6257, 6761, 7013, 7517, 7643, 8147, 8273, 9029, 9281, 9533, 10037, 10163, 10289, 10667, 11171, 11423, 11549, 11801, 11927, 12809 ]
[ "nonn", "easy" ]
A379263
[ 1, 2, 3, 4, 9, 8, 15, 5, 21, 7, 6, 10, 12, 25, 27, 35, 14, 16, 18, 33, 11, 55, 20, 24, 26, 13, 65, 45, 30, 22, 28, 49, 63, 39, 36, 32, 34, 17, 51, 57, 19, 38, 40, 42, 69, 23, 115, 50, 44, 48, 77, 75, 85, 54, 46, 52, 91, 105, 81, 60, 58, 29, 203, 119, 56, 62, 31 ]
[ "nonn" ]
A280208
[ 4, 14, 55, 78, 111, 253, 342, 355 ]
[ "nonn", "more" ]
A081586
[ 1, 13, 73, 245, 593, 1181, 2073, 3333, 5025, 7213, 9961, 13333, 17393, 22205, 27833, 34341, 41793, 50253, 59785, 70453, 82321, 95453, 109913, 125765, 143073, 161901, 182313, 204373, 228145, 253693, 281081, 310373, 341633, 374925, 410313, 447861 ]
[ "easy", "nonn" ]
A254453
[ 76832, 1279568, 19716320, 275772848, 3694478768, 48236381800, 623402653056, 8027022727640, 103264924928344, 1328657798616824, 17098462225957872, 220073014797498530, 2832785034766356000, 36465171455788007000 ]
[ "nonn" ]
A214214
[ 1, 3, 5, 9, 11, 15, 19, 21, 23, 27, 31, 35, 39, 41, 43, 45, 47, 51, 55, 59, 63, 67, 71, 75, 79, 81, 83, 85, 87, 89, 91, 93, 95, 99, 103, 107, 111, 115, 119, 123, 127, 131, 135, 139, 143, 147, 151, 155, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 195, 199, 203, 207, 211, 215, 219, 223, 227, 231, 235, 239, 243, 247, 251 ]
[ "nonn" ]
A307111
[ 3465, 6930, 19399380, 8172244080 ]
[ "nonn", "hard", "bref", "more" ]
A239295
[ 1, 1, 4, 26, 210, 1897, 18368, 186636, 1965414, 21277685, 235493544, 2653779856, 30357956720, 351719984280, 4119552129280, 48708104589368, 580682799531822, 6973356315752445, 84286657672243870, 1024694111031383000, 12522664914160323000, 153762682439070450000 ]
[ "nonn" ]
A275964
[ 0, 0, 0, 2, 0, 0, 0, 2, 2, 3, 0, 2, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 0, 0, 0, 2, 2, 3, 0, 2, 2, 3, 3, 4, 2, 3, 0, 2, 2, 3, 2, 4, 0, 2, 2, 3, 0, 2, 0, 0, 0, 2, 2, 2, 0, 2, 2, 3, 2, 4, 2, 2, 2, 4, 3, 3, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 0, 0, 0, 2, 2, 3, 0, 2, 0, 0, 0, 2, 2, 2, 2, 2, 2, 4, 2, 2, 0, 0, 0, 2, 0, 0, 0, 2, 2, 3, 0, 2, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 0, 0, 0 ]
[ "nonn", "base" ]
A224933
[ 0, 0, 0, 3, 5, 0, 4, 6, 7, 5, 7, 5, 6, 8, 8, 7, 6, 11, 8, 10, 12, 7, 10, 7, 10, 12, 8, 11, 11, 15, 8, 9, 16, 12, 12, 15, 10, 9, 13, 9, 13, 11, 15, 14, 10, 17, 12, 14, 10, 20 ]
[ "nonn" ]
A371002
[ 0, 2, 3, 6, 8, 11, 14, 17, 26, 44, 68, 92, 113, 128, 158, 209, 224, 293, 356, 401, 413, 431, 473, 584, 629, 650, 743, 854, 1007, 1010, 1106, 1112, 1148, 1280, 1295, 1319, 1358, 1364, 1388, 1616, 1643, 1664, 1799, 1859, 1973, 2000, 2162, 2234, 2294, 2393, 2501 ]
[ "nonn" ]
A376885
[ 0, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 1, 3, 2, 2, 2, 2, 1, 2, 2, 3, 1, 3, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 1, 3, 2, 3, 2, 2, 1, 3, 1, 2, 2, 1, 2, 3, 1, 2, 2, 3, 1, 3, 1, 2, 2, 2, 2, 3, 1, 3, 2, 2, 1, 3, 2, 2, 2, 3, 1, 3, 2, 2, 2, 2, 2, 4, 1, 2, 2, 2, 1, 3, 1, 3, 3 ]
[ "nonn", "easy", "base" ]
A252451
[ 228, 334, 959, 2643, 7223, 20242, 56643, 157904, 441732, 1236191, 3457251, 9675077, 27082988, 75811167, 212260118, 594414790, 1664804901, 4663453223, 13065449675, 36610452250, 102601066175, 287584652400, 806202954272, 2260411478111 ]
[ "nonn" ]
A000835
[ 7, 22, 153, 15209, 29281010032, 1.3187641700050975e+26, 2.7605301684601933e+60 ]
[ "nonn" ]
A212953
[ 1, 3, 7, 5, 31, 9, 127, 17, 73, 11, 23, 13, 8191, 43, 151, 257, 131071, 19, 524287, 25, 49, 69, 47, 119, 601, 2731, 262657, 29, 233, 77, 2147483647, 65537, 161, 43691, 71, 37, 223, 174763, 79, 187, 13367, 147, 431, 115, 631, 141, 2351, 97, 4432676798593, 251 ]
[ "nonn" ]
A022330
[ 1, 3, 7, 12, 19, 27, 37, 49, 62, 77, 93, 111, 131, 152, 175, 199, 225, 252, 281, 312, 344, 378, 413, 450, 489, 529, 571, 614, 659, 705, 753, 803, 854, 907, 961, 1017, 1075, 1134, 1195, 1257, 1321, 1386, 1453, 1522, 1592, 1664, 1737, 1812, 1889, 1967, 2047, 2128 ]
[ "nonn" ]
A066165
[ 3, 8, 30, 234, 1680, 13040, 119448, 1212120, 13412520, 161968872, 2118607920, 29813747040, 449227822680, 7216747374720, 123128587713600, 2223511629522624, 42370586275466880, 849664985938704000, 17886165587251840000, 394366490810199900000, 9.088843342633833e+21 ]
[ "nonn", "nice", "easy" ]
A140893
[ -1, 118, 61318, 1957839572, 32730551749894, 8640511341348432000, 2.3359204882736653e+23, 2.5775501247438015e+29, 3.09105432637282e+39, 2.1416621670554847e+45 ]
[ "sign" ]
A173023
[ 1, 2, 3, 3, 4, 5, 5, 6, 7, 8, 9, 9, 9, 9, 10, 11, 12, 13, 14, 14, 15, 16, 16, 17, 17, 17, 17, 17, 18, 19, 20, 21, 22, 23, 24, 24, 25, 26, 26, 27, 28, 29, 30, 30, 30, 30, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 33, 34, 35, 35, 36, 37, 38, 39, 40, 41, 42, 42, 43, 44, 44, 45, 46, 47 ]
[ "base", "nonn" ]
A131650
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 3, 4 ]
[ "nonn", "base", "easy" ]
A330890
[ 1, 1, 1, 3, 6, 8, 0, 6, 1, 8, 1, 3, 2, 3, 1, 6, 4, 8, 8, 8, 6, 1, 8, 9, 1, 9, 4, 1, 1, 9, 8, 3, 1, 9, 9, 1, 3, 6, 5, 6, 5, 8, 2, 7, 5, 4, 7, 8, 7, 7, 5, 9, 2, 3, 2, 4, 4, 5, 6, 1, 1, 5, 1, 6, 3, 4, 6, 7, 5, 6, 7, 2, 7, 7, 2, 5, 4, 6, 6, 5, 1, 0, 7, 5, 0, 3, 6, 6, 2, 7, 6, 5, 2, 7, 7, 4, 1, 8, 1, 5, 8, 8, 1, 7, 2 ]
[ "nonn", "cons" ]
A348888
[ 1, 1, 2, 1, 3, 2, 1, 4, 1, 3, 1, 5, 2, 2, 3, 1, 6, 2, 2, 3, 4, 1, 7, 3, 2, 3, 2, 4, 1, 8, 1, 5, 1, 6, 1, 5, 1, 9, 3, 1, 5, 3, 1, 5, 5, 1, 10, 2, 4, 3, 2, 5, 4, 2, 6, 1, 11, 2, 3, 3, 3, 2, 2, 2, 3, 6, 1, 12, 2, 3, 3, 8, 1, 9, 2, 4, 3, 7 ]
[ "nonn", "tabl" ]
A090227
[ 11, 113, 131, 311, 11311, 131111, 311111, 11111311, 11113111, 11131111, 1131111101, 13111110119, 311111011919, 11111011919321, 1111011919321103, 1110119193211031, 110119193211031140, 10119193211031130000 ]
[ "base", "nonn" ]
A184575
[ 1, 1, 3, 30, 892, 76554, 19138212, 14126533902, 31053145918644, 204151364083796860, 4.0214302929088367e+21, 2.3753095710588484e+26, 4.208247877500627e+31, 2.236525067318274e+37 ]
[ "nonn" ]
A316374
[ 1, 272, 749, 12281, 128585, 1396959, 16730969, 194865364, 2259023326, 26610336444, 311380086474, 3648641002457, 42805215859288, 501837507157183, 5884825482207714, 69015433077367070, 809333470144150100 ]
[ "nonn" ]
A159060
[ 0, 3, 0, 5, 4, 3, 4, 3, 2, 5, 2, 1, 4, 5, 0, 5, 4, 1, 4, 3, 2, 1, 2, 1, 0, 3, 0, 1, 2, 3, 4, 3, 2, 5, 2, 1, 0, 5, 0, 5, 4, 1, 4, 3, 0, 1, 2, 1, 0, 3, 0, 5, 4, 3, 4, 3, 2, 5, 0, 3, 4, 5, 0, 5, 4, 1, 4, 3, 2, 1, 2, 1, 0, 3, 0, 5, 2, 3, 4, 3, 2, 5, 2, 1, 0, 5, 0, 5, 4, 1, 4, 5, 0, 1, 2, 1, 0, 3, 0, 5, 4, 3, 4, 3, 2 ]
[ "nonn", "less", "base" ]
A348755
[ 1, 1, 1, 1, 2, 4, 8, 17, 38, 85, 194, 448, 1046, 2462, 5844, 13953, 33516, 80909, 196222, 477807, 1167850, 2863987, 7045268, 17379771, 42985148, 106568739, 264791172, 659278031, 1644614824, 4109924774, 10287920172, 25792856375, 64760183942, 162822928210 ]
[ "nonn" ]
A213158
[ 3, 8, 15, 20, 24, 35, 36, 48, 56, 63, 80, 84, 96, 99, 108, 120, 128, 135, 140, 143, 144, 168, 176, 180, 195, 200, 216, 224, 231, 240, 243, 255, 260, 264, 275, 288, 300, 308, 320, 323, 336, 351, 360, 384, 396, 399, 416, 420, 440, 455, 468, 476, 483, 495, 504 ]
[ "nonn" ]
A027157
[ 1, 2, 1, 3, 3, 4, 4, 6, 8, 4, 5, 10, 24, 12, 16, 6, 15, 40, 36, 32, 16, 7, 21, 76, 76, 144, 48, 64, 8, 28, 112, 152, 256, 192, 128, 64, 9, 36, 176, 264, 672, 448, 768, 192, 256, 10, 45, 240, 440, 1088, 1120, 1408, 960, 512, 256, 11, 55, 340, 680 ]
[ "nonn", "tabl" ]
A104440
[ 1, 135135, 1161, 161, 125, 119, 117, 116, 116, 116, 116, 116, 116, 116, 116, 116 ]
[ "nonn" ]
A232756
[ 86, 561, 561, 2799, 14229, 2799, 11642, 268376, 268376, 11642, 42136, 3995189, 21120269, 3995189, 42136, 135738, 49913678, 1275396109, 1275396109, 49913678, 135738, 398282, 534194881, 63029738888, 318928128419, 63029738888, 534194881 ]
[ "nonn", "tabl" ]
A263321
[ 1, 3, 5, 7, 11, 13, 16, 19, 19, 19, 29, 29, 29, 37, 37, 59, 59, 59, 59, 59, 59, 59, 59, 101, 101, 101, 133, 133, 133, 133, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 173, 175, 245, 269, 269, 269, 269, 379, 379 ]
[ "nonn" ]
A200654
[ 1, 1, 1, 3, 6, 27, 9, 2, 6, 7, 5, 14, 1, 5, 3, 10, 1, 15, 93, 36, 33, 5, 18, 1, 18, 1, 2, 28, 2, 10, 8, 1, 34, 11, 12, 3, 2, 116, 4, 52, 31, 29, 18, 42, 13, 32, 24, 71, 93, 122, 61, 75, 11, 141, 73, 31, 57, 36, 23, 43, 18, 15, 69, 33, 15, 10, 39, 8, 108, 29, 72, 7, 8, 62 ]
[ "nonn" ]
A329627
[ 0, 1, 20, 52, 308, 820, 2868, 68404, 199476, 723764 ]
[ "nonn", "more" ]
A192617
[ 0, 1, 0, 3, 2, 10, 16, 43, 92, 213, 486, 1100, 2522, 5719, 13068, 29721, 67772, 154334, 351670, 801137, 1825184, 4158219, 9473244, 21582392, 49169220, 112018989, 255203904, 581412535, 1324587918, 3017709810, 6875021540, 15662845615 ]
[ "nonn", "easy" ]
A273803
[ 1, 3, 21, 126, 504, 987, 5922, 23688, 2178309, 13069854, 52279416, 10610209857723, 63661259146338, 254645036585352 ]
[ "nonn", "more" ]
A313680
[ 1, 5, 10, 15, 19, 23, 27, 31, 35, 39, 44, 49, 54, 59, 64, 69, 73, 77, 81, 85, 89, 93, 98, 103, 108, 113, 118, 123, 127, 131, 135, 139, 143, 147, 152, 157, 162, 167, 172, 177, 181, 185, 189, 193, 197, 201, 206, 211, 216, 221 ]
[ "nonn" ]
A195753
[ 8, 30, 74, 269, 356, 3309, 11178, 10351, 28028, 519141, 56511, 6511653, 4798118, 3319643 ]
[ "nonn" ]
A379149
[ 1, 1, 1, 1, 2, 1, 1, 4, 5, 2, 1, 6, 13, 12, 4, 1, 10, 37, 64, 52, 16, 1, 12, 57, 138, 180, 120, 32, 1, 18, 129, 480, 1008, 1200, 752, 192, 1, 22, 201, 996, 2928, 5232, 5552, 3200, 768, 1, 28, 333, 2202, 8904, 22800, 36944, 36512, 19968, 4608, 1, 32, 445, 3534, 17712, 58416, 128144, 184288, 166016, 84480, 18432 ]
[ "nonn", "tabl" ]
A180993
[ 0, 0, 4, 2200, 1283875, 1408620622, 3595756291357, 24101118080151320, 459717083252930300000, 2.642840576806646e+25, 4.776623401553625e+30 ]
[ "nonn" ]
A376793
[ 1, 1424, 2484, 4304, 4655, 6223, 10624, 13824, 20624, 22784, 29448, 33424, 33984, 36944, 41535, 43263, 45184, 45324, 65744, 66199, 68624, 69632, 70784, 74304, 74627, 99584, 103103, 103424, 105720, 114704, 120680, 139904, 147636, 164224, 166144, 192576, 199968 ]
[ "nonn", "base" ]
A211136
[ 3, 5, 7, 9, 13, 15, 25, 75, 105, 315, 325 ]
[ "nonn", "fini", "full" ]
A068825
[ 3, 5, 7, 913579, 13, 5791, 357913, 5.791357913579136e+21, 91357913, 5.791357913579136e+63, 35791357913579, 1.3579135791357913e+21 ]
[ "nonn", "base" ]
A300198
[ 45, 469872, 9215455916, 222628516313454, 5992746995783065000, 1.724217353489392e+23, 5.190295355475474e+27, 1.6143807885785378e+32, 5.147432171207326e+36, 1.6734817964104389e+41 ]
[ "nonn" ]
A026783
[ 1, 11, 84, 557, 3446, 20514, 119336, 684227, 3886460, 21939528, 123347842, 691644044, 3871738018, 21652138770, 121026492186, 676391629701, 3780636102222, 21137831159462, 118234019051048, 661686074145618, 3705252204960252 ]
[ "nonn" ]
A318465
[ 1, 2, 2, 2, 2, 4, 2, 2, 2, 4, 2, 4, 2, 4, 4, 4, 2, 4, 2, 4, 4, 4, 2, 4, 2, 4, 2, 4, 2, 8, 2, 2, 4, 4, 4, 4, 2, 4, 4, 4, 2, 8, 2, 4, 4, 4, 2, 8, 2, 4, 4, 4, 2, 4, 4, 4, 4, 4, 2, 8, 2, 4, 4, 4, 4, 8, 2, 4, 4, 8, 2, 4, 2, 4, 4, 4, 4, 8, 2, 8, 4, 4, 2, 8, 4, 4, 4, 4, 2, 8, 4, 4, 4, 4, 4, 4, 2, 4, 4, 4, 2, 8, 2, 4, 8 ]
[ "nonn", "mult" ]
A156400
[ 1, 0, 0, 0, 18, 0, 0, 0, 0, 11, 0, 0, 64, 0, 0, 0, 42, 18, 0, 0, 42, 0, 0, 0, 72, 36, 0, 0, 0, 0, 0, 0, 96, 15, 0, 0, 257, 0, 0, 0, 120, 72, 0, 0, 240, 0, 0, 0, 172, 288, 0, 0, 204, 0, 0, 0, 216, 122, 0, 0, 0, 0, 0, 0, 138, 36, 0, 0, 1050, 0, 0, 0, 192, 294, 0, 0, 1320, 0, 0, 0, 186, 387, 0, 0 ]
[ "nonn" ]
A143380
[ 1, 2, 0, 0, 1, -2, 0, 0, -3, 0, 0, 0, -2, -2, 0, 0, 2, -2, 0, 0, -1, 2, 0, 0, 0, 2, 0, 0, 1, 2, 0, 0, 2, -2, 0, 0, 4, 2, 0, 0, -2, 0, 0, 0, 0, 2, 0, 0, -1, 0, 0, 0, -2, 0, 0, 0, 2, -4, 0, 0, -1, -2, 0, 0, 0, 0, 0, 0, -2, 0, 0, 0, -2, -2, 0, 0, -2, 2, 0, 0, 0 ]
[ "sign" ]
A087310
[ 1, 2, 6, 6, 30, 4, 72, 72, 210, 132, 132, 114, 594, 48, 354, 1860, 3942, 2574, 2574, 2574, 20910, 20910, 9600, 9600 ]
[ "nonn", "more" ]
A203554
[ 0, 1, 2, 4, 3, 5, 6, 8, 10, 7, 9, 11, 12, 14, 16, 18, 13, 15, 17, 19, 20, 22, 24, 26, 28, 21, 23, 25, 27, 29, 30, 32, 34, 36, 38, 40, 31, 33, 35, 37, 39, 41, 42, 44, 46, 48, 50, 52, 54, 43, 45, 47, 49, 51, 53, 55 ]
[ "nonn" ]
A227191
[ 0, 1, 2, 2, 3, 5, 6, 7, 8, 8, 9, 10, 11, 12, 13, 12, 13, 15, 16, 17, 18, 16, 17, 23, 24, 25, 26, 26, 27, 29, 30, 31, 32, 32, 33, 34, 35, 36, 37, 36, 37, 39, 40, 41, 42, 40, 41, 46, 47, 48, 49, 48, 49, 52, 53, 54, 55, 54, 55, 56, 57, 58, 59, 56, 57, 60, 61, 62 ]
[ "nonn", "base" ]
A254101
[ 1, 3, 1, 1, 1, 5, 3, 11, 23, 7, 7, 17, 1, 17, 41, 9, 5, 25, 95, 203, 61, 5, 13, 59, 149, 71, 19, 365, 3, 29, 77, 11, 223, 851, 1823, 547, 13, 35, 43, 115, 527, 1337, 319, 1367, 3281, 15, 19, 13, 257, 689, 395, 2005, 7655, 16403, 4921, 1, 11, 113, 311, 385, 1033, 4739, 12029, 5741, 6151, 29525 ]
[ "nonn", "tabl" ]
A303850
[ 1, 10, 2, 11, 3, 12, 4, 13, 5, 14, 6, 15, 7, 16, 8, 17, 9, 18, 100, 19, 101, 20, 102, 21, 103, 22, 104, 23, 105, 24, 106, 25, 107, 26, 108, 27, 109, 28, 110, 29, 111, 30, 112, 31, 113, 32, 114, 33, 115, 34, 116, 35, 117, 36, 118, 37, 119, 38, 120, 39, 121, 40, 122, 41, 123, 42, 124, 43, 125, 44, 126, 45, 127 ]
[ "dead" ]
A356094
[ 2, 3, 15, 35, 231, 5005, 255255, 1616615, 10140585, 462120945, 6685349671, 1236789689135, 30425026352721, 311494317420715, 13367169186706336, 1253429172199617000, 33151040519900217000, 3.9096127119802326e+21, 1.1906547804667072e+23, 7.970583287524271e+24 ]
[ "nonn", "frac" ]
A332695
[ 1, 5, 98, 3234, 149784, 8927880, 650696400, 56061791856, 5574017768832, 628158472212096, 79123082415148800, 11015976349601753000, 1.6798328517079985e+21, 2.7844050404235243e+23, 4.984608496271222e+25, 9.584526091509128e+27, 1.9700592916209258e+30 ]
[ "nonn" ]
A302790
[ 0, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 2, 3, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 3, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 3, 1, 3, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 3, 2 ]
[ "nonn" ]
A122332
[ 0, 1, 3, 2, 6, 7, 8, 5, 4, 14, 15, 16, 18, 17, 19, 20, 22, 11, 12, 21, 13, 10, 9, 37, 38, 39, 41, 40, 42, 43, 47, 48, 49, 44, 50, 46, 45, 51, 52, 53, 55, 54, 60, 61, 62, 28, 29, 63, 30, 32, 31, 56, 57, 64, 33, 34, 59, 36, 25, 26, 58, 35, 27, 24, 23, 107, 108, 109, 111, 110 ]
[ "nonn" ]