A008985 - OEIS

A008985 as a simple table

n	a(n)
-1	0
0	1
1	1
2	1
3	1
4	1
5	2
6	3
7	3
8	2
9	4
10	10
11	11
12	10
13	4
14	10
15	35
16	57
17	57
18	35
19	10
20	26
21	133
22	290
23	364
24	290
25	133
26	26
27	80
28	538
29	1504
30	2370
31	2370
32	1504
33	538
34	80
35	246
36	2144
37	7607
38	14846
39	18273
40	14846
41	7607
42	2144
43	246
44	810
45	8643
46	37762
47	90182
48	134855
49	134855
50	90182
51	37762
52	8643
53	810

[0,1,1,1,1,1,2,3,3,2,4,10,11,10,4,10,35,57,57,35, 10,26,133,290,364,290,133,26,80,538,1504,2370, 2370,1504,538,80,246,2144,7607,14846,18273,14846, 7607,2144,246,810,8643,37762,90182,134855,134855, 90182,37762,8643,810]