A220247 - OEIS

A220247 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	5
6	2
7	4
8	18
9	18
10	4
11	7
12	37
13	143
14	37
15	7
16	12
17	85
18	816
19	816
20	85
21	12
22	21
23	184
24	4467
25	7140
26	4467
27	184
28	21
29	37
30	393
31	27192
32	64258
33	64258
34	27192
35	393
36	37
37	65
38	826
39	158296
40	660677
41	942945
42	660677
43	158296
44	826
45	65
46	114
47	1726
48	915920
49	6228324
50	16925474

[1,1,1,2,5,2,4,18,18,4,7,37,143,37,7,12,85,816, 816,85,12,21,184,4467,7140,4467,184,21,37,393, 27192,64258,64258,27192,393,37,65,826,158296, 660677,942945,660677,158296,826,65,114,1726, 915920,6228324,16925474]