A163821 - OEIS

A163821 as a simple table

n	a(n)
1	2
2	3
3	5
4	7
5	3
6	7
7	9
8	3
9	6
10	72
11	0
12	14
13	10
14	0
15	126
16	0
17	32
18	42
19	120
20	96
21	3888
22	324
23	6
24	1701
25	0
26	0
27	4032
28	1152
29	0
30	0
31	0
32	45360
33	12960
34	27440
35	23328
36	3024
37	0
38	102060
39	27216
40	0
41	0
42	97200
43	0
44	100800
45	158760
46	0
47	0
48	67200

[2,3,5,7,3,7,9,3,6,72,0,14,10,0,126,0,32,42,120, 96,3888,324,6,1701,0,0,4032,1152,0,0,0,45360, 12960,27440,23328,3024,0,102060,27216,0,0,97200,0, 100800,158760,0,0,67200]