A180091 - OEIS

A180091 as a simple table

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	3
7	1
8	3
9	5
10	9
11	1
12	4
13	8
14	15
15	27
16	1
17	5
18	12
19	24
20	46
21	83
22	1
23	6
24	17
25	37
26	75
27	143
28	259
29	1
30	7
31	23
32	55
33	118
34	237
35	450
36	817
37	1
38	8
39	30
40	79
41	180
42	380
43	755
44	1429
45	2599
46	1
47	9
48	38
49	110
50	267
51	592
52	1229
53	2421
54	4570
55	8323

[1,1,1,1,2,3,1,3,5,9,1,4,8,15,27,1,5,12,24,46,83, 1,6,17,37,75,143,259,1,7,23,55,118,237,450,817,1, 8,30,79,180,380,755,1429,2599,1,9,38,110,267,592, 1229,2421,4570,8323]