A018818 - OEIS

A018818 as a simple table

n	a(n)
1	1
2	2
3	2
4	4
5	2
6	8
7	2
8	10
9	5
10	11
11	2
12	45
13	2
14	14
15	14
16	36
17	2
18	81
19	2
20	92
21	18
22	20
23	2
24	458
25	7
26	23
27	23
28	156
29	2
30	742
31	2
32	202
33	26
34	29
35	26
36	2234
37	2
38	32
39	30
40	1370
41	2
42	1654
43	2
44	337
45	286
46	38
47	2
48	9676
49	9
50	407
51	38
52	454
53	2
54	3132
55	38
56	3065
57	42
58	47
59	2
60	73155
61	2
62	50
63	493
64	1828
65	44
66	5257
67	2
68	740
69	50
70	5066

[1,2,2,4,2,8,2,10,5,11,2,45,2,14,14,36,2,81,2,92, 18,20,2,458,7,23,23,156,2,742,2,202,26,29,26,2234, 2,32,30,1370,2,1654,2,337,286,38,2,9676,9,407,38, 454,2,3132,38,3065,42,47,2,73155,2,50,493,1828,44, 5257,2,740,50,5066]