A271531 - OEIS

A271531 as a simple table

n	a(n)
1	1
2	1
3	2
4	1
5	12
6	1
7	30
8	3
9	28
10	9
11	24
12	5
13	132
14	3
15	26
16	7
17	420
18	1
19	360
20	3
21	4
22	5
23	1680
24	253
25	84
26	15
27	440
28	117
29	1020
30	7
31	42
32	15
33	28
34	725
35	2376
36	1
37	47880
38	3
39	2960
40	1
41	29640
42	155
43	120
44	21
45	476
46	11781
47	11040
48	1
49	2640
50	3
51	1288
52	5
53	300
54	13
55	144
56	285
57	2860
58	7
59	4200
60	1

[1,1,2,1,12,1,30,3,28,9,24,5,132,3,26,7,420,1,360, 3,4,5,1680,253,84,15,440,117,1020,7,42,15,28,725, 2376,1,47880,3,2960,1,29640,155,120,21,476,11781, 11040,1,2640,3,1288,5,300,13,144,285,2860,7,4200, 1]