A058865 - OEIS

A058865 as a simple table

n	a(n)
1	1
2	0
3	3
4	1
5	0
6	0
7	4
8	12
9	6
10	1
11	0
12	0
13	0
14	5
15	30
16	75
17	30
18	30
19	10
20	1
21	0
22	0
23	0
24	0
25	6
26	60
27	270
28	360
29	435
30	270
31	255
32	80
33	60
34	15
35	1
36	0
37	0
38	0
39	0
40	0
41	7
42	105
43	735
44	1925
45	2940
46	3591
47	4165
48	2310
49	2520
50	1925
51	882
52	630
53	175
54	105
55	21
56	1
57	0
58	0
59	0
60	0
61	0
62	0
63	8
64	168
65	1680
66	7280
67	16800

[1,0,3,1,0,0,4,12,6,1,0,0,0,5,30,75,30,30,10,1,0, 0,0,0,6,60,270,360,435,270,255,80,60,15,1,0,0,0,0, 0,7,105,735,1925,2940,3591,4165,2310,2520,1925, 882,630,175,105,21,1,0,0,0,0,0,0,8,168,1680,7280, 16800]