A058931 - OEIS

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A058931 as a simple table

n	a(n)
1	0
2	1
3	60
4	0
5	0
6	19958400
7	0
8	0
9	622452999168000
10	0
11	0
12	258520167388849766400000
13	0
14	0
15	675289572271869736778268672000000
16	0
17	0
18	7393367369949286697176489031997849600000000
19	0
20	0

[0,1,60,0,0,19958400,0,0,622452999168000,0,0, 258520167388849766400000,0,0, 675289572271869736778268672000000,0,0, 7393367369949286697176489031997849600000000,0,0]