A195865 - OEIS

A195865 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	4
6	5
7	10
8	12
9	25
10	33
11	68
12	91
13	190
14	264
15	555
16	780
17	1649
18	2365
19	5021
20	7274
21	15518
22	22727
23	48646
24	71784
25	154162
26	229094
27	493346
28	737215
29	1591518
30	2390072
31	5170896
32	7798020
33	16903848
34	25587218
35	55561618
36	84377881
37	183509750
38	279499063
39	608726985
40	929556155
41	2027094432

[1,1,1,2,2,4,5,10,12,25,33,68,91,190,264,555,780, 1649,2365,5021,7274,15518,22727,48646,71784, 154162,229094,493346,737215,1591518,2390072, 5170896,7798020,16903848,25587218,55561618, 84377881,183509750,279499063,608726985,929556155, 2027094432]