A197047 - OEIS

A197047 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	7
6	2
7	3
8	20
9	20
10	3
11	5
12	65
13	120
14	65
15	5
16	8
17	203
18	698
19	698
20	203
21	8
22	13
23	648
24	4080
25	7407
26	4080
27	648
28	13
29	21
30	2057
31	24074
32	79785
33	79785
34	24074
35	2057
36	21
37	34
38	6527
39	141856
40	855746
41	1563352
42	855746
43	141856
44	6527
45	34
46	55
47	20740
48	833758
49	9248339
50	31096170

[1,1,1,2,7,2,3,20,20,3,5,65,120,65,5,8,203,698, 698,203,8,13,648,4080,7407,4080,648,13,21,2057, 24074,79785,79785,24074,2057,21,34,6527,141856, 855746,1563352,855746,141856,6527,34,55,20740, 833758,9248339,31096170]