A056941 - OEIS

A056941 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	6
5	1
6	1
7	21
8	21
9	1
10	1
11	56
12	196
13	56
14	1
15	1
16	126
17	1176
18	1176
19	126
20	1
21	1
22	252
23	5292
24	14112
25	5292
26	252
27	1
28	1
29	462
30	19404
31	116424
32	116424
33	19404
34	462
35	1
36	1
37	792
38	60984
39	731808
40	1646568
41	731808
42	60984
43	792
44	1
45	1
46	1287
47	169884
48	3737448
49	16818516
50	16818516
51	3737448
52	169884
53	1287
54	1

[1,1,1,1,6,1,1,21,21,1,1,56,196,56,1,1,126,1176, 1176,126,1,1,252,5292,14112,5292,252,1,1,462, 19404,116424,116424,19404,462,1,1,792,60984, 731808,1646568,731808,60984,792,1,1,1287,169884, 3737448,16818516,16818516,3737448,169884,1287,1]