A231641 - OEIS

A231641 as a simple table

n	a(n)
1	1
2	1
3	1
4	3
5	5
6	3
7	8
8	25
9	25
10	8
11	21
12	124
13	362
14	124
15	21
16	55
17	599
18	5110
19	5110
20	599
21	55
22	144
23	2907
24	69671
25	193596
26	69671
27	2907
28	144
29	377
30	14098
31	953726
32	7176194
33	7176194
34	953726
35	14098
36	377
37	987
38	68345
39	13036446
40	266730604
41	722149510
42	266730604

[1,1,1,3,5,3,8,25,25,8,21,124,362,124,21,55,599, 5110,5110,599,55,144,2907,69671,193596,69671,2907, 144,377,14098,953726,7176194,7176194,953726,14098, 377,987,68345,13036446,266730604,722149510, 266730604]