A271776 - OEIS

A271776 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	2
6	1
7	6
8	5
9	3
10	1
11	20
12	18
13	9
14	4
15	1
16	70
17	70
18	37
19	14
20	5
21	1
22	252
23	280
24	162
25	64
26	20
27	6
28	1
29	924
30	1134
31	720
32	309
33	100
34	27
35	7
36	1
37	3432
38	4620
39	3206
40	1500
41	525
42	146
43	35
44	8
45	1
46	12870
47	18876
48	14238
49	7238
50	2751
51	825
52	203
53	44
54	9
55	1
56	48620
57	77220
58	62964
59	34608
60	14240
61	4626
62	1225
63	272
64	54
65	10
66	1

[1,1,1,2,2,1,6,5,3,1,20,18,9,4,1,70,70,37,14,5,1, 252,280,162,64,20,6,1,924,1134,720,309,100,27,7,1, 3432,4620,3206,1500,525,146,35,8,1,12870,18876, 14238,7238,2751,825,203,44,9,1,48620,77220,62964, 34608,14240,4626,1225,272,54,10,1]