A338870 - OEIS

A338870 as a simple table

n	a(n)
1	1
2	2
3	1
4	2
5	6
6	1
7	3
8	20
9	12
10	1
11	2
12	55
13	80
14	20
15	1
16	4
17	142
18	405
19	220
20	30
21	1
22	2
23	322
24	1792
25	1785
26	490
27	42
28	1
29	4
30	779
31	7224
32	12152
33	5810
34	952
35	56
36	1
37	3
38	1608
39	27323
40	73920
41	56532
42	15498
43	1680
44	72
45	1
46	4
47	3894
48	99690
49	414815
50	482160
51	204204
52	35910
53	2760
54	90
55	1

[1,2,1,2,6,1,3,20,12,1,2,55,80,20,1,4,142,405,220, 30,1,2,322,1792,1785,490,42,1,4,779,7224,12152, 5810,952,56,1,3,1608,27323,73920,56532,15498,1680, 72,1,4,3894,99690,414815,482160,204204,35910,2760, 90,1]