A292357 - OEIS

A292357 as a simple table

n	a(n)
1	1
2	1
3	1
4	1
5	5
6	1
7	1
8	15
9	15
10	1
11	1
12	39
13	111
14	39
15	1
16	1
17	97
18	649
19	649
20	97
21	1
22	1
23	237
24	3495
25	7943
26	3495
27	237
28	1
29	1
30	575
31	18189
32	86995
33	86995
34	18189
35	575
36	1
37	1
38	1391
39	93231
40	910667
41	1890403
42	910667
43	93231
44	1391
45	1

[1,1,1,1,5,1,1,15,15,1,1,39,111,39,1,1,97,649,649, 97,1,1,237,3495,7943,3495,237,1,1,575,18189,86995, 86995,18189,575,1,1,1391,93231,910667,1890403, 910667,93231,1391,1]