A097610 - OEIS

A097610 as a simple table

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	0
7	3
8	0
9	1
10	2
11	0
12	6
13	0
14	1
15	0
16	10
17	0
18	10
19	0
20	1
21	5
22	0
23	30
24	0
25	15
26	0
27	1
28	0
29	35
30	0
31	70
32	0
33	21
34	0
35	1
36	14
37	0
38	140
39	0
40	140
41	0
42	28
43	0
44	1
45	0
46	126
47	0
48	420
49	0
50	252
51	0
52	36
53	0
54	1
55	42
56	0
57	630
58	0
59	1050
60	0
61	420
62	0
63	45
64	0
65	1
66	0
67	462
68	0
69	2310
70	0
71	2310
72	0
73	660
74	0
75	55
76	0
77	1
78	132
79	0
80	2772
81	0

[1,0,1,1,0,1,0,3,0,1,2,0,6,0,1,0,10,0,10,0,1,5,0, 30,0,15,0,1,0,35,0,70,0,21,0,1,14,0,140,0,140,0, 28,0,1,0,126,0,420,0,252,0,36,0,1,42,0,630,0,1050, 0,420,0,45,0,1,0,462,0,2310,0,2310,0,660,0,55,0,1, 132,0,2772,0]