A020902 - cp's OEIS frontend

A020902 Number of nonisomorphic cyclic subgroups of alternating group A_n (or number of distinct orders of even permutations of n objects); number of different LCM's of partitions of n which have even number of even parts.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	4
6	5
7	7
8	8
9	11
10	13
11	16
12	18
13	22
14	26
15	30
16	35
17	39
18	46
19	51
20	60
21	67
22	76
23	84
24	94
25	105
26	119
27	133
28	147
29	162
30	176
31	196
32	218
33	240
34	263
35	286
36	310
37	340
38	374
39	409
40	441
41	476
42	515
43	559
44	608
45	662
46	711
47	762
48	817
49	883
50	955
51	1030
52	1104
53	1177
54	1257
55	1352
56	1453
57	1559

[1, 1, 1, 2, 3, 4, 5, 7, 8, 11, 13, 16, 18, 22, 26, 30, 35, 39, 46, 51, 60, 67, 76, 84, 94, 105, 119, 133, 147, 162, 176, 196, 218, 240, 263, 286, 310, 340, 374, 409, 441, 476, 515, 559, 608, 662, 711, 762, 817, 883, 955, 1030, 1104, 1177, 1257, 1352, 1453, 1559]

cp's OEIS Frontend

A020902 Number of nonisomorphic cyclic subgroups of alternating group A_n (or number of distinct orders of even permutations of n objects); number of different LCM's of partitions of n which have even number of even parts.

Table of values

List of values