id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A032321
[ 2, 2, 12, 72, 720, 6480, 90720, 1209600, 20321280, 359251200, 7424524800, 160465536000, 3923023104000, 101213996083200, 2853345470976000, 85364982743040000, 2742350070620160000, 93039294691639300000 ]
[ "nonn" ]
A088176
[ 7, 11, 17, 23, 37, 47, 67, 79, 107, 113, 149, 157, 191, 197, 211, 233, 251, 277, 293, 317, 353, 431, 439, 467, 541, 577, 607, 631, 647, 673, 821, 827, 839, 863, 887, 1031, 1039, 1061, 1069, 1097, 1163, 1237, 1283, 1297, 1307, 1327, 1433, 1459, 1487, 1493, 1613 ]
[ "easy", "nonn" ]
A279211
[ 0, 1, 2, 2, 4, 4, 3, 5, 6, 6, 4, 6, 8, 8, 8, 5, 7, 9, 10, 10, 10, 6, 8, 10, 12, 12, 12, 12, 7, 9, 11, 13, 14, 14, 14, 14, 8, 10, 12, 14, 16, 16, 16, 16, 16, 9, 11, 13, 15, 17, 18, 18, 18, 18, 18, 10, 12, 14, 16, 18, 20, 20, 20, 20, 20, 20, 11, 13, 15, 17 ]
[ "nonn", "tabl" ]
A094833
[ 1, 4, 15, 55, 199, 714, 2548, 9061, 32148, 113887, 403051, 1425471, 5039254, 17809336, 62928201, 222324436, 785402143, 2774421135, 9800231959, 34617003682, 122274355596, 431893332397, 1525507797700, 5388281150223 ]
[ "nonn", "easy" ]
A188608
[ 7, 49, 211, 847, 3282, 12405, 45860, 167525, 605878, 2177496, 7787333, 27757367, 98687854, 350247594, 1241371867, 4395505741, 15552531864, 55000200159, 194426956404, 687105218857, 2427709127594, 8576325199050, 30293865359314 ]
[ "nonn" ]
A325553
[ 1, 1, 1, 1, 1, 1, 1, 7, 21, 31, 41, 87, 99, 191, 245, 381, 501, 735, 883, 1309, 1841, 2589, 3435, 4941, 6857, 9791, 13503, 19475, 27073, 37175, 52299, 72249, 100359, 139317, 190549, 256769, 355193, 471963, 644433, 858793, 1159161, 1530879, 2056073, 2711921 ]
[ "nonn" ]
A352234
[ 1, -2, 5, -11, 21, -36, 55, -68, 40, 123, -642, 1988, -5080, 11550, -23958, 45537, -78318, 116893, -131896, 31485, 420341, -1762617, 5118598, -12634557, 28027721, -56909794, 105789635, -176867658, 251914939, -251059044, -61012507, 1269898505, -4682586517 ]
[ "sign" ]
A060151
[ 1, 2, 2, 3, 3, 4, 5, 6, 6, 7, 8, 9, 9, 10, 11, 12, 12, 13, 14, 15, 15, 16, 17, 18, 19, 19, 20, 21, 22, 22, 23, 24, 25, 26, 26, 27, 28, 29, 30, 30, 31, 32, 33, 34, 34, 35, 36, 37, 38, 38, 39, 40, 41, 42, 43, 43, 44, 45, 46, 47, 47, 48, 49, 50, 51, 51, 52, 53, 54, 55, 56, 56, 57 ]
[ "base", "nonn", "easy" ]
A052520
[ 0, 0, 0, 0, 24, 240, 2160, 20160, 201600, 2177280, 25401600, 319334400, 4311014400, 62270208000, 958961203200, 15692092416000, 271996268544000, 4979623993344000, 96035605585920000, 1946321606541312000, 41359334139002880000, 919636959090769900000, 2.1356013827774545e+22 ]
[ "easy", "nonn" ]
A284982
[ 0, -1, 0, -4, 1, 0, -9, 6, -1, 0, -16, 20, -8, 1, 0, -25, 50, -35, 10, -1, 0, -36, 105, -112, 54, -12, 1, 0, -49, 196, -294, 210, -77, 14, -1, 0, -64, 336, -672, 660, -352, 104, -16, 1, 0, -81, 540, -1386, 1782, -1287, 546, -135, 18, -1, 0, -100, 825, -2640, 4290, -4004, 2275, -800, 170, -20, 1 ]
[ "sign", "easy", "tabl" ]
A102102
[ 1, 1, 15, 1000, 189035, 79278446, 63263422646, 86493299281972, 187766975052827500, 611024291011881900000, 2.849262494779035e+24, 1.8362167739517548e+28, 1.5875959985837608e+32 ]
[ "nonn" ]
A249569
[ 1, 1, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 10, 10, 10, 12, 12, 13, 13, 14, 15, 15, 16, 16, 17, 19, 16, 19, 21, 19, 21, 21, 22, 23, 23, 25, 24, 25, 26, 26, 26, 29, 29, 27, 32, 26, 34, 31, 29, 36, 31, 36, 35, 34, 36, 37, 37, 37, 38, 38, 40, 40, 40, 41, 42, 42, 43, 46 ]
[ "nonn", "easy" ]
A068913
[ 1, 0, 1, 0, 2, 1, 0, 2, 2, 1, 0, 4, 4, 2, 1, 0, 4, 6, 4, 2, 1, 0, 8, 12, 8, 4, 2, 1, 0, 8, 18, 14, 8, 4, 2, 1, 0, 16, 36, 28, 16, 8, 4, 2, 1, 0, 16, 54, 48, 30, 16, 8, 4, 2, 1, 0, 32, 108, 96, 60, 32, 16, 8, 4, 2, 1, 0, 32, 162, 164, 110, 62, 32, 16, 8, 4, 2, 1, 0, 64, 324, 328, 220, 124, 64, 32, 16, 8, 4, 2, 1 ]
[ "nonn", "tabl" ]
A343877
[ 0, 0, 0, 1, 0, 3, 0, 3, 1, 3, 0, 10, 0, 3, 3, 6, 0, 10, 0, 10, 3, 3, 0, 21, 1, 3, 3, 10, 0, 21, 0, 10, 3, 3, 3, 28, 0, 3, 3, 21, 0, 21, 0, 10, 10, 3, 0, 36, 1, 10, 3, 10, 0, 21, 3, 21, 3, 3, 0, 55, 0, 3, 10, 15, 3, 21, 0, 10, 3, 21, 0, 55, 0, 3, 10, 10, 3, 21, 0, 36, 6, 3, 0, 55 ]
[ "nonn" ]
A211218
[ 3, 5, 7, 9, 11, 14, 16, 18, 20, 22, 25, 30, 32, 34, 36, 38, 41, 43, 44, 47, 47, 52, 57, 62, 64, 66, 68, 70, 73, 75, 76, 79, 80, 84, 89, 93, 95, 97, 99, 101, 104, 106, 107, 110, 110, 116, 121, 126, 128, 130, 132, 134, 137, 139, 140, 143, 143, 148, 153, 170, 172 ]
[ "nonn" ]
A004448
[ 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8, 23, 22, 21, 20, 19, 18, 17, 16, 31, 30, 29, 28, 27, 26, 25, 24, 39, 38, 37, 36, 35, 34, 33, 32, 47, 46, 45, 44, 43, 42, 41, 40, 55, 54, 53, 52, 51, 50, 49, 48, 63, 62, 61, 60, 59, 58, 57, 56, 71, 70, 69, 68, 67, 66, 65, 64, 79, 78, 77, 76, 75, 74, 73, 72, 87, 86, 85 ]
[ "nonn", "easy" ]
A000821
[ 36, 330, 22060, 920737780, 247617673784972440000, 4.8653765932675417e+45 ]
[ "nonn" ]
A120784
[ 1, 17, 137, 4389, 35119, 561925, 4495433, 287708141, 2301665843, 36826655919, 294613251551, 9427624079025, 75420992684203, 1206735883132973, 9653887065398088, 1235697544380650200 ]
[ "nonn", "easy", "frac" ]
A323839
[ 1, 12, 312, 31187, 17438702, 40575832476, 404139015237875, 17253201646564114000, 3.185118492387669e+24, 2.540927098290913e+30 ]
[ "nonn", "more" ]
A279645
[ 0, 0, 0, 1, 1, 0, 2, 3, 3, 2, 0, 1, 5, 4, 6, 7, 7, 6, 4, 5, 1, 0, 2, 3, 11, 10, 8, 9, 13, 12, 14, 15, 15, 14, 12, 13, 9, 8, 10, 11, 3, 2, 0, 1, 5, 4, 6, 7, 23, 22, 20, 21, 17, 16, 18, 19, 27, 26, 24, 25, 29, 28, 30, 31, 31, 30, 28, 29, 25, 24, 26, 27, 19, 18, 16 ]
[ "nonn", "easy", "look" ]
A191699
[ 3, 4, 6, 9, 31, 187, 632, 2972 ]
[ "nonn", "hard", "more" ]
A217081
[ 19, 70, 102, 116, 126, 188, 209, 257, 294, 359, 451, 461, 468, 470, 638, 653, 710, 762, 766, 781, 824, 901, 939, 964, 995, 1036, 1047, 1098, 1150, 1211, 1234, 1243, 1256, 1278, 1389, 1401, 1422, 1436, 1454, 1492, 1523, 1639, 1703, 1705, 1826, 1913, 1915, 1978 ]
[ "nonn", "easy" ]
A269685
[ 4, 16, 64, 248, 944, 3544, 13168, 48536, 177776, 647896, 2351728, 8508440, 30701168, 110537560, 397266544, 1425629336, 5109684848, 18295104472, 65449056880, 233970500888, 835908980336, 2984966034520, 10654610339440, 38017445912984 ]
[ "nonn" ]
A290591
[ 4, 22, 112, 618, 3044, 14026, 70340, 347074, 1713820, 8430362, 41516292, 204628626, 1008216460, 4967464650, 24473678612, 120581823170, 594106884060, 2927147525626, 14421969381220, 71056635221618, 350094259434668, 1724905262555178, 8498562511858612 ]
[ "nonn" ]
A241437
[ 4, 2, 22, 74, 158, 448, 1272, 3284, 8331, 23365, 63819, 159963, 450553, 1178189, 3085252, 8574583, 21981254, 59397292, 161093107, 416692229, 1133829778, 3023012096, 7951525097, 21508340343, 56988406704, 151552827477, 406957891025 ]
[ "nonn" ]
A390415
[ 1, 6, 49, 426, 3800, 34369, 313536, 2877073, 26512748, 245104797, 2271644202, 21096344235, 196244091617, 1828062312656, 17049031536276, 159166349907598, 1487264728073906, 13907980491243632, 130148776818166320, 1218664441160957700, 11417448252889420000 ]
[ "nonn" ]
A343356
[ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 5, 2, 2 ]
[ "nonn", "fini" ]
A168688
[ 1, 11, 110, 1100, 11000, 110000, 1100000, 11000000, 110000000, 1100000000, 11000000000, 110000000000, 1100000000000, 11000000000000, 110000000000000, 1100000000000000, 11000000000000000, 109999999999999950 ]
[ "nonn" ]
A067649
[ 1, 1, 7, 9, 43, 87, 387, 665, 8499, 17003, 72345, 131903, 913919, 1825875, 7629371, 14275257, 410980675, 820899123, 3396389533, 6448133283, 47448015653, 94775447369, 389689995525, 746772134927, 11150225818167, 22273876637759 ]
[ "nonn" ]
A276930
[ 1, 1, 3, 13, 75, 541, 4683, 47293, 545835, 7087261, 102247563, 1622632572, 28091567570, 526858347730, 10641342953670, 230283190536542, 5315654669985946, 130370766690581280, 3385534653313192000, 92801587015186100000, 2.6776877865576363e+21 ]
[ "nonn" ]
A135527
[ 1, 1, 2, 4, 11, 30, 96, 319, 1135, 4150, 15690, 60506, 237853, 948455, 3831226, 15642947, 64484774, 268055006, 1122646262, 4733357618, 20078203381, 85637471487, 367093826598, 1580813221552, 6836181195493 ]
[ "nonn" ]
A329774
[ 1, 2, 3, 4, 7, 10, 13, 22, 31, 40, 67, 94, 121, 202, 283, 364, 607, 850, 1093, 1822, 2551, 3280, 5467, 7654, 9841, 16402, 22963, 29524, 49207, 68890, 88573, 147622, 206671, 265720, 442867, 620014, 797161, 1328602, 1860043, 2391484, 3985807 ]
[ "nonn", "easy" ]
A027155
[ 2, 4, 8, 16, 48, 80, 288, 512, 1536, 2816, 9472, 16128, 58880, 103424, 337920, 606208, 2113536, 3620864, 13303808, 23265280, 78905344, 140181504, 497352704, 854523904, 3150839808, 5497421824, 19039518720, 33639366656 ]
[ "nonn" ]
A318603
[ 3, 4, 5, 7, 8, 11, 17, 20, 36, 40, 43, 47, 53, 71, 107, 123, 225, 345, 368, 460, 468, 625, 652, 807, 1036, 1107, 1285, 1531, 1613, 1820, 1837, 2084, 2195, 3512, 3604, 4427, 6273, 6945, 7112, 8615, 9223, 9564, 12265, 22697, 23895, 26435, 26492, 31313, 35297 ]
[ "nonn", "hard" ]
A210007
[ 893, 70923, 5258039, 385841179, 28267925909, 2070471867089, 151644743405597, 11106638825609388, 813462442022950800, 59578874503149150000, 4.3636214972077305e+21, 3.195963780000271e+23 ]
[ "nonn" ]
A338644
[ 1, 2, 3, 4, 7, 6, 5, 12, 11, 8, 9, 10, 13, 16, 15, 22, 19, 24, 17, 14, 23, 18, 25, 36, 35, 26, 21, 20, 27, 34, 33, 28, 31, 52, 37, 42, 29, 54, 43, 30, 53, 44, 39, 50, 89, 48, 61, 66, 41, 32, 47, 62, 51, 46, 55, 76, 63, 38, 45, 58, 49, 60, 67, 72, 59, 68, 83, 84, 73, 78, 95, 98, 65, 74, 57, 92 ]
[ "nonn" ]
A367087
[ 1, 1, 0, 1, 2, 2, 2, 5, 8, 13, 20, 38, 68, 118, 206, 380, 692, 1262, 2306, 4277, 7930, 14745, 27492, 51541, 96792, 182182, 343670, 650095, 1231932, 2338706, 4447510, 8472697, 16164914, 30884150, 59086618, 113189168, 217091832, 416839177, 801247614, 1541726967, 2969432270 ]
[ "nonn" ]
A384891
[ 1, 1, 1, 3, 3, 5, 23, 25, 43, 63, 345, 365, 665, 949, 1513, 8175, 9003, 15929, 23399, 36949, 51043, 293715, 314697, 570353, 826817, 1318201, 1810393, 2766099, 14180139, 15600413, 27707879, 40501321, 63981955, 88599903, 134362569, 181491125, 923029217 ]
[ "nonn" ]
A164052
[ 6, 16, 29, 40, 66, 72, 93, 104, 126, 138, 144, 180, 200, 216, 240, 264, 280, 462, 468, 490, 492, 495, 630, 665, 675, 704, 720, 740, 756, 765, 795, 861, 900, 945, 988, 1078, 1281, 1320, 1386, 1410, 1428, 1440, 1450, 1518, 1566, 1586, 1620, 1736, 1800, 1825 ]
[ "easy", "nonn", "word" ]
A340113
[ 2, 3, 5, 7, 127, 131, 137, 139, 149, 151, 157, 173, 179, 211, 233, 251, 271, 277, 281, 311, 331, 353, 421, 431, 433, 443, 463, 521, 523, 541, 547, 571, 577, 613, 631, 641, 653, 733, 743, 751, 757, 761, 769, 827, 853, 857, 877, 887, 953, 971, 983 ]
[ "nonn", "base" ]
A162677
[ 1, 10, 400, 57856, 31522816, 66605547520, 554222579875840, 18303191835587117000, 2.4084253530075928e+24, 1.2651771380012979e+30, 2.6558611107911646e+36 ]
[ "nonn" ]
A197419
[ 1, -1, 1, 5, -2, 1, -1, 5, -3, 1, 1, -2, 5, -4, 1, 1, 1, -5, 25, -5, 1, -5, 1, 3, -10, 25, -6, 1, -1, -5, 7, 7, -35, 35, -7, 1, 7, -4, -10, 28, 7, -28, 70, -8, 1, 3, 21, -6, -10, 21, 63, -42, 30, -9, 1, -15, 3, 21, -20, -25, 42, 21, -60, 75, -10, 1, -5, -15, 33, 77, -55, -55, 77, 33, -165, 275, -11, 1, 7601, -10, -45, 66, 231, -132, -110, 132, 99, -110, 55, -12, 1 ]
[ "sign", "tabl", "frac" ]
A138434
[ 6, 54, 750, 4116, 39930, 92274, 353736, 617310, 1606044, 5121690, 7149840, 17323326, 28946820, 36732234, 57310296, 104511654, 178679730, 211092330, 337456086, 450967860, 518170644, 769140840, 984617214, 1395838620 ]
[ "nonn", "easy" ]
A308897
[ 1, 2, 1, 2, 3, 4, 1, 3, 4, 2, 3, 4, 1, 3, 4, 2, 5, 6, 7, 8, 1, 5, 6, 7, 8, 2, 5, 6, 7, 8, 1, 5, 6, 7, 8, 2, 3, 6, 5, 8, 7, 4, 1, 3, 6, 5, 8, 7, 4, 2, 3, 6, 5, 8, 7, 4, 1, 3, 6, 5, 8, 7, 4, 2, 9, 10, 11, 12, 13, 14, 15, 16, 1, 9, 10, 11, 12, 13, 14, 15, 16, 2 ]
[ "nonn" ]
A176362
[ 1, 7, 28, 63, 186, 508, 1016, 2047, 6643, 12282, 24564, 65532, 114674, 262136, 786408, 1048575, 2359278, 6815731, 10485740, 25165818, 67108832, 100663284, 201326568, 536870908, 1040187361, 1879048178, 5368709080, 8589934584 ]
[ "nonn" ]
A219676
[ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16383, 32752, 65399, 130238, 258096, 507624, 988116, 1898712, 3593934, 6690448, 12236830, 21977516, 38754732, 67108864, 114159428, 190876696, 313889477, 508019104, 809785133, 1272196666 ]
[ "nonn", "easy" ]
A001151
[ 8, 18, 1118, 3118, 132118, 1113122118, 311311222118, 13211321322118, 1.1131221131211132e+21, 3.1131122211311123e+25, 1.3211321322113312e+29, 1.1131221131211132e+43, 3.1131122211311123e+55 ]
[ "nonn", "base", "easy", "nice" ]
A180536
[ 127, 167, 241, 277, 283, 421, 461, 523, 563, 641, 677, 683, 823, 863, 1021, 1061, 1123, 1163, 1201, 1213, 1223, 1229, 1237, 1297, 1321, 1327, 1361, 1367, 1601, 1613, 1637, 1663, 1669, 1697, 2011, 2027, 2053, 2069, 2089, 2113, 2131, 2143, 2161, 2207, 2221 ]
[ "base", "nonn" ]
A235573
[ 16, 50, 50, 144, 250, 144, 398, 1120, 1120, 398, 1076, 4670, 8046, 4670, 1076, 2866, 18606, 53728, 53728, 18606, 2866, 7560, 71710, 336836, 599834, 336836, 71710, 7560, 19798, 270016, 2000524, 6353336, 6353336, 2000524, 270016, 19798, 51580, 998834 ]
[ "nonn", "tabl" ]
A070657
[ 0, 1, 30, 15, 16, 19, 8, 9, 4, 21, 26, 25, 2, 33, 32, 13, 18, 17, 18, 13, 32, 33, 2, 25, 26, 21, 4, 9, 8, 19, 16, 15, 30, 1, 0, 1, 30, 15, 16, 19, 8, 9, 4, 21, 26, 25, 2, 33, 32, 13, 18, 17, 18, 13, 32, 33, 2, 25, 26, 21, 4, 9, 8, 19, 16, 15, 30, 1, 0, 1, 30, 15, 16, 19, 8, 9, 4 ]
[ "nonn", "easy" ]
A199369
[ 29, 10973, 16381, 42589, 62497, 97553, 470593, 1048573, 1620893, 1826129, 2544221, 3014281, 5619709, 7086241, 8193529, 9624413, 10285409, 10975997, 13771801, 16693121, 22941353, 30581489, 39201373, 43175441, 46172701, 65548253, 69495913, 91625213, 94559609, 103737341, 110174429, 113490497, 119163997, 167127689, 188183521, 192914173, 194508497 ]
[ "nonn" ]
A294308
[ 82, 98, 100, 102, 106, 108, 118, 125, 129, 132, 133, 134, 135, 161, 163, 173, 183, 197, 199, 204, 211, 212, 215, 236, 263, 328, 392, 400, 408, 424, 432, 472, 528, 536, 816, 848, 944, 1312, 1568, 1600, 1632, 1696, 1728, 1888, 2112, 2144, 3264, 3392, 3776 ]
[ "nonn" ]
A086592
[ 2, 3, 3, 4, 4, 5, 5, 5, 5, 7, 7, 7, 7, 8, 8, 6, 6, 9, 9, 10, 10, 11, 11, 9, 9, 12, 12, 11, 11, 13, 13, 7, 7, 11, 11, 13, 13, 14, 14, 13, 13, 17, 17, 15, 15, 18, 18, 11, 11, 16, 16, 17, 17, 19, 19, 14, 14, 19, 19, 18, 18, 21, 21, 8, 8, 13, 13, 16, 16, 17, 17, 17, 17, 22, 22, 19, 19, 23 ]
[ "nonn", "frac", "tabf", "changed" ]
A095340
[ 1, 4, 24, 256, 5120, 196608, 14680064, 2147483648, 618475290624, 351843720888320, 396316767208603650, 885443715538058500000, 3.929008913747545e+24, 3.4662321099990648e+28, 6.084722881095501e+32, 2.1267647932558654e+37 ]
[ "nonn" ]
A280004
[ 67, 9431, 461081, 2543551 ]
[ "nonn", "hard", "more" ]
A246188
[ 1, 1, 2, 4, 1, 11, 2, 1, 31, 8, 2, 1, 92, 28, 9, 2, 1, 283, 99, 34, 10, 2, 1, 893, 354, 129, 40, 11, 2, 1, 2875, 1273, 492, 161, 46, 12, 2, 1, 9407, 4598, 1882, 646, 195, 52, 13, 2, 1, 31189, 16679, 7199, 2597, 816, 231, 58, 14, 2, 1, 104555, 60712, 27570, 10400, 3422, 1002, 269, 64, 15, 2, 1 ]
[ "nonn", "tabf" ]
A365559
[ 1, 2, 7, 28, 160, 1085, 8403, 69824, 607988, 5448444, 49846437, 462977928 ]
[ "nonn", "hard", "more" ]
A261599
[ 1, 1, 0, 1, 1, 3, 13, 24, 67, 252, 1795, 4038, 16812, 61750, 349806, 3485026, 10391070, 49433135, 240064988, 1282012986, 9167581934, 131550811985, 459677212302, 2707382738558, 14318807586215, 94084166753923, 601900541189696, 5894253303715121 ]
[ "nonn" ]
A080783
[ 1, 6, 11, 16, 21, 20, 25, 30, 35, 40, 39, 44, 49, 54, 59, 58, 63, 68, 73, 72, 71, 76, 81, 86, 85, 90, 95, 100, 105, 104, 109, 114, 119, 124, 123, 128, 133, 138, 137, 136, 141, 146, 151, 150, 155, 160, 165, 170, 169, 174, 179, 184, 189, 188, 193, 198 ]
[ "nonn" ]
A348675
[ 0, 3, 6, 10, 14, 18, 21, 27, 31, 35, 39, 44, 48, 54, 58, 64, 68, 74, 77, 83, 87, 91, 96, 102, 107, 112, 117, 123, 127, 132, 135, 144, 149, 153, 158, 164, 167, 173, 178, 184, 190, 195, 199, 205, 210, 215, 219, 227, 231, 238, 242, 247, 252, 258, 262, 269, 273, 278 ]
[ "nonn" ]
A277417
[ 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 15, 16, 17, 19, 23, 25, 29, 30, 31, 35, 36, 37, 41, 43, 47, 49, 53, 59, 61, 64, 67, 71, 73, 77, 79, 81, 83, 89, 97, 100, 101, 103, 105, 107, 109, 113, 121, 127, 131, 137, 139, 143, 144, 149, 151, 157, 163, 167, 169, 173, 179, 181, 191, 193, 196, 197, 199, 210, 211, 221, 223, 225, 227, 229, 233 ]
[ "nonn" ]
A105930
[ 2, 3, 5, 7, 12, 16, 24, 28, 36, 48, 52, 64, 72, 76, 84, 96, 108, 112, 124, 132, 136, 148, 156, 168, 184, 193, 199, 211, 217, 229, 271, 283, 301, 307, 337, 343, 361, 379, 391, 409, 427, 433, 463, 469, 481, 487, 523, 559, 571, 577, 589, 607, 613, 643, 661, 679 ]
[ "base", "easy", "nonn" ]
A180497
[ 1, 1, 6, 4, 13, 9, 1, 16, 6, 25, 13, 36, 22, 4, 33, 13, 46, 24, 61, 37, 9, 52, 22, 69, 37, 1, 54, 16, 73, 33, 94, 52, 6, 73, 25, 96, 46, 121, 69, 13, 94, 36, 121, 61, 150, 88, 22, 117, 49, 148, 78, 4, 109, 33, 142, 64, 177, 97, 13, 132, 46, 169, 81, 208, 118, 24, 157, 61, 198 ]
[ "nonn" ]
A204232
[ 3, 5, 6, 7, 10, 11, 12, 13, 14, 17, 20, 22, 23, 24, 25, 26, 28, 29, 31, 34, 37, 40, 41, 43, 44, 46, 47, 48, 50, 52, 53, 55, 56, 58, 61, 62, 67, 68, 71, 73, 74, 77, 80, 82, 83, 86, 88, 91, 92, 94, 96, 97, 100, 101, 104, 106, 107, 110, 112, 113, 115, 116, 121 ]
[ "nonn", "base", "easy" ]
A080037
[ 2, 4, 6, 8, 9, 11, 12, 14, 15, 16, 18, 19, 20, 22, 23, 24, 25, 27, 28, 29, 30, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 80, 81, 83, 84, 85, 86, 87, 88, 89, 90, 92 ]
[ "nonn" ]
A160278
[ 0, 66, 132, 162, 96, 30, 36, 102, 168, 126, 60, 6, 72, 138, 156, 90, 24, 42, 108, 174, 120, 54, 12, 78, 144, 150, 84, 18, 48, 114, 180, 114, 48, 18, 84, 150, 144, 78, 12, 54, 120, 174, 108, 42, 24, 90, 156, 138, 72, 6, 60, 126, 168, 102, 36, 30, 96, 162, 132, 66 ]
[ "nonn", "easy" ]
A040546
[ 23, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1, 46, 1, 6, 1 ]
[ "nonn", "cofr", "easy", "less", "mult" ]
A138115
[ 2, 2, 7, 2, 7, 1, 2, 7, 1, 8, 2, 7, 1, 8, 2, 2, 7, 1, 8, 2, 8, 2, 7, 1, 8, 2, 8, 1, 2, 7, 1, 8, 2, 8, 1, 8, 2, 7, 1, 8, 2, 8, 1, 8, 2, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 4, 2, 7, 1, 8, 2, 8, 1, 8, 2, 8, 4, 5 ]
[ "easy", "nonn", "tabl", "base" ]
A102606
[ 3, 5, 6, 9, 18, 21, 24, 25, 26, 36, 39, 41, 42, 49, 53, 54, 58, 59, 64, 65, 69, 71, 72, 79, 87, 91, 93, 105, 124, 132, 155, 159, 162, 163, 165, 168, 172, 184, 187, 196, 210, 214, 221, 226, 235, 238, 249, 256, 272, 278, 284, 289, 312, 323, 327, 329, 331, 336, 341, 342 ]
[ "nonn", "base" ]
A288127
[ 1, 10, 11, 1100, 101, 111010, 1101, 11110010, 10001, 1111101110, 111011, 111111000100, 1010001, 11111110101110, 11011011, 1111111100100100, 100000001, 111111111011111100, 1110000011, 11111111110001111000, 10101000101, 1.1111111111010101e+21, 110101101101 ]
[ "nonn", "easy" ]
A018113
[ 1, 3, 5, 11, 23, 51, 111, 242, 529, 1159, 2537, 5556, 12167, 26645, 58351, 127785, 279841, 612835, 1342071, 2939052, 6436343, 14095197, 30867617, 67598189, 148035889, 324189523, 709955184, 1554758333, 3404825447, 7456359024, 16328969211, 35759441655 ]
[ "nonn" ]
A138870
[ 2, 4, 16, 64, 409, 655, 262, 107, 115, 309, 811, 850, 343, 265, 520, 737, 223, 129, 953, 142, 239, 173, 140, 215, 224, 201, 427, 268, 260, 256, 373, 870, 647, 206, 407, 311, 637, 218, 462, 629, 149, 610, 157, 622, 101, 849, 158 ]
[ "nonn", "base", "more" ]
A227428
[ 0, 0, 1, 0, 0, 2, 1, 2, 4, 0, 0, 2, 0, 0, 4, 2, 4, 8, 1, 2, 4, 2, 4, 8, 4, 8, 13, 0, 0, 2, 0, 0, 4, 2, 4, 8, 0, 0, 4, 0, 0, 8, 4, 8, 16, 2, 4, 8, 4, 8, 16, 8, 16, 26, 1, 2, 4, 2, 4, 8, 4, 8, 13, 2, 4, 8, 4, 8, 16, 8, 16, 26, 4, 8, 13, 8, 16, 26, 13, 26, 40 ]
[ "nonn", "changed" ]
A295171
[ 1, 11, 328, 16369, 1181276, 116093641, 14916610346, 2428960220241, 489039354264712, 119323954705155260, 34701518665828420000, 1.186102476391609e+22, 4.708209994260511e+24, 2.1481583029784357e+27, 1.116465105383647e+30 ]
[ "nonn" ]
A292203
[ 3, 2, 7, 5, 13, 11, 31, 29, 23, 19, 17, 53, 61, 59, 41, 43, 47, 37, 97, 103, 101, 109, 107, 127, 113, 83, 89, 73, 79, 71, 67, 193, 199, 197, 223, 211, 241, 251, 233, 239, 229, 227, 163, 167, 173, 191, 181, 179, 151, 149, 157, 137, 139, 131, 389, 397, 409, 401, 433, 439 ]
[ "nonn" ]
A338356
[ 1, 2, 3, 5, 7, 9, 13, 16, 20, 23, 27, 33, 36, 42, 46, 49, 53, 60, 66, 69, 75, 80, 83, 89, 93, 99, 107, 112, 115, 119, 122, 127, 140, 145, 151, 154, 163, 166, 173, 179, 183, 190, 196, 199, 210, 213, 217, 220, 231, 242, 246, 249, 254, 261, 264, 275, 281, 287, 294, 297, 303, 307, 310, 321 ]
[ "nonn" ]
A259063
[ 1, 4, 54, 1208, 37810, 1521252, 74800558, 4346473840, 291409650378, 22142153337500, 1880332153123270, 176486211108436960, 18142303135426280000, 2.0271405836108363e+21, 2.4462297004802808e+23, 3.1706140285613088e+25, 4.3929073007689386e+27, 6.479059744661687e+29 ]
[ "nonn" ]
A338331
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 64, 66, 67, 68, 69, 70, 71, 72, 73 ]
[ "nonn" ]
A335776
[ 0, 0, 4, 42, 436, 5650, 96544, 2185610, 65108236 ]
[ "nonn", "more" ]
A054537
[ 1, 1, 1, 1, 2, 2, 2, 2, 2, 4, 4, 4, 6, 8, 12, 16, 26 ]
[ "dead" ]
A047497
[ 1, 2, 4, 5, 7, 9, 10, 12, 13, 15, 17, 18, 20, 21, 23, 25, 26, 28, 29, 31, 33, 34, 36, 37, 39, 41, 42, 44, 45, 47, 49, 50, 52, 53, 55, 57, 58, 60, 61, 63, 65, 66, 68, 69, 71, 73, 74, 76, 77, 79, 81, 82, 84, 85, 87, 89, 90, 92, 93, 95, 97, 98, 100, 101, 103 ]
[ "nonn", "easy" ]
A289196
[ 1, 9, 325, 51465, 30331861, 66273667449, 556170787050565, 18374555799096912000, 2.414861959450912e+24, 1.2671669743910026e+30, 2.6581492102180785e+36, 2.22999795560586e+43 ]
[ "nonn" ]
A368175
[ 1, 1, 1, 1, 2, 2, 1, 2, 3, 3, 1, 2, 4, 6, 6, 1, 2, 4, 7, 10, 10, 1, 2, 4, 8, 14, 20, 20, 1, 2, 4, 8, 15, 25, 35, 35, 1, 2, 4, 8, 16, 30, 50, 70, 70, 1, 2, 4, 8, 16, 31, 56, 91, 126, 126, 1, 2, 4, 8, 16, 32, 62, 112, 182, 252, 252, 1, 2, 4, 8, 16, 32, 63, 119, 210, 336, 462, 462 ]
[ "nonn", "tabl", "easy" ]
A055511
[ 3, 5, 11, 41, 89, 317, 337, 991, 1873, 2053, 2377, 4093, 4297, 4583, 6569, 13033, 15877 ]
[ "dead" ]
A155324
[ 1, 7, 19, 37, 133, 535, 2615, 17587, 119298, 919700, 8881748, 102328225, 1400493835, 22807381469, 434028590353 ]
[ "nonn" ]
A251781
[ 3, 24, 81, 98, 168, 192, 228, 312, 375, 525, 588, 648, 671, 784, 847, 1014, 1029, 1183, 1225, 1261, 1323, 1344, 1536, 1824, 2187, 2496, 2646, 2888, 3000, 3993, 4200, 4225, 4536, 4563, 4644, 4704, 5184, 5368, 6156, 6272, 6292, 6371, 6591, 6696, 6776, 6877, 8112 ]
[ "nonn" ]
A134907
[ 0, 17, 3, 1, 146, 8, 2, 7180, 14, 5, 1.4811480856284124e+99, 22, 8, 0, 35, 11, 0, 56, 16, 2, 96, 21, 4, 202, 28, 7 ]
[ "nonn", "easy" ]
A110146
[ 0, 1, 0, 1, 4, 1, 0, 4, 8, 1, 4, 1, 12, 4, 0, 1, 4, 1, 12, 4, 20, 1, 16, 16, 24, 13, 20, 1, 28, 1, 0, 4, 32, 9, 4, 1, 36, 4, 32, 1, 10, 1, 36, 31, 44, 1, 16, 15, 38, 4, 44, 1, 40, 49, 40, 4, 56, 1, 52, 1, 60, 4, 0, 16, 34, 1, 60, 4, 48, 1, 40, 1, 72, 34, 68, 9 ]
[ "nonn" ]
A222517
[ 0, 0, 4, 37, 0, 1302, 1318, 90581, 70734, 5931248, 5165434, 396589283, 363819326, 26492741018, 25813321786, 1772163042969, 1828692355062, 118639519688172, 129482347946176, 7949399002469286, 9161368832882458, 533108011913115000 ]
[ "nonn" ]
A272477
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 27, 29, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 43, 45, 47, 48, 49, 51, 53, 55, 57, 59, 61, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 75, 77, 79, 80, 81, 83, 85, 87, 89, 91 ]
[ "nonn", "easy" ]
A293834
[ 5, 11, 14, 17, 38, 44, 65, 68, 71, 29, 32, 35, 38, 41, 44, 47, 50, 53, 110, 116, 119, 125, 128, 134, 191, 194, 197, 200, 203, 206, 209, 212, 215, 272, 275, 278, 290, 293, 296, 353, 359, 371, 377, 434, 437, 440, 452, 455, 458, 515, 518, 521, 524, 527, 530, 533, 536, 539, 596 ]
[ "nonn" ]
A294886
[ 0, 1, 1, 3, 1, 6, 1, 7, 4, 8, 1, 10, 1, 10, 9, 15, 1, 15, 1, 22, 11, 14, 1, 18, 6, 16, 13, 28, 1, 36, 1, 31, 15, 20, 13, 19, 1, 22, 17, 30, 1, 48, 1, 40, 33, 26, 1, 34, 8, 43, 21, 46, 1, 42, 17, 36, 23, 32, 1, 40, 1, 34, 41, 63, 19, 72, 1, 58, 27, 74, 1, 27, 1, 40, 49, 64, 19, 84, 1, 46, 40, 44, 1, 52, 23, 46, 33, 92, 1, 90, 21 ]
[ "nonn" ]
A177193
[ 3, 7, 11, 13, 17, 19, 31, 43, 59, 61, 71, 101, 103, 139, 179, 311, 313, 347, 349, 421, 463, 523, 569, 571, 599, 601, 617, 659, 823, 1019, 1021, 1031, 1061, 1093, 1153, 1319, 1321, 1429, 1619, 1667, 1697, 1721, 1787, 1789 ]
[ "nonn" ]
A282807
[ 1, 0, 4, 0, 28, 48, 76, 0, 508, 1008, 1996, 3840, 7420, 12528, 19660, 0, 131068, 262128, 524236, 1048320, 2096380, 4190448, 8375500, 16711680, 33357820, 66125808, 130875340, 251723520, 486341884, 821096688, 1288490188, 0, 8589934588, 17179869168, 34359738316 ]
[ "nonn", "easy" ]
A325688
[ 0, 0, 0, 1, 0, 4, 5, 12, 12, 25, 24, 40, 41, 60, 60, 85, 84, 112, 113, 144, 144, 181, 180, 220, 221, 264, 264, 313, 312, 364, 365, 420, 420, 481, 480, 544, 545, 612, 612, 685, 684, 760, 761, 840, 840, 925, 924, 1012, 1013, 1104, 1104, 1201, 1200, 1300, 1301, 1404 ]
[ "nonn" ]
A215590
[ 0, 0, 0, 1, 0, 1, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 3, 1, 2, 0, 3, 1, 2, 0, 3, 1, 4, 2, 0, 3, 1, 4, 2, 0, 3, 1, 4, 2, 0, 5, 3, 1, 4, 2, 0, 5, 3, 1, 4, 2, 0, 5, 3, 1, 6, 4, 2, 0, 5, 3, 1, 6, 4, 2, 0, 5, 3, 1, 6, 4, 2, 7 ]
[ "nonn" ]
A106490
[ 0, 1, 1, 2, 1, 2, 1, 2, 2, 2, 1, 3, 1, 2, 2, 3, 1, 3, 1, 3, 2, 2, 1, 3, 2, 2, 2, 3, 1, 3, 1, 2, 2, 2, 2, 4, 1, 2, 2, 3, 1, 3, 1, 3, 3, 2, 1, 4, 2, 3, 2, 3, 1, 3, 2, 3, 2, 2, 1, 4, 1, 2, 3, 3, 2, 3, 1, 3, 2, 3, 1, 4, 1, 2, 3, 3, 2, 3, 1, 4, 3, 2, 1, 4, 2, 2, 2, 3, 1, 4, 2, 3, 2, 2, 2, 3, 1, 3, 3, 4, 1, 3 ]
[ "nonn" ]
A324989
[ 1, 2, 3, 4, 5, 7, 11, 22, 101, 111, 121, 131, 151, 181, 191, 202, 313, 353, 373, 383, 727, 757, 787, 797, 919, 929, 1001, 1111, 10001, 10201, 10301, 10501, 10601, 11111, 11311, 11411, 12421, 12721, 12821, 13331, 13831, 13931, 14341, 14741, 15451, 15551, 16061 ]
[ "nonn", "base" ]
A211527
[ 8, 18, 42, 90, 192, 394, 806, 1618, 3244, 6444, 12798, 25306, 50056, 98830, 195252, 385546, 761880, 1505776, 2978372, 5893812, 11672100, 23128778, 45863610, 91000330, 180675314, 358921836, 713425574, 1418791694, 2822950098, 5619290544 ]
[ "nonn" ]
A228528
[ 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 2, 3, 3, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 3, 4, 4, 1, 1, 3, 1, 2, 2, 1, 1, 1, 2, 1, 3, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 2, 2, 3, 2, 1, 1, 3, 2, 3, 1, 4, 5, 5, 1, 1, 4, 1 ]
[ "nonn", "tabf" ]