A052583 - OEIS

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A052583 as a simple table

n	a(n)
0	0
1	1
2	0
3	6
4	24
5	240
6	2160
7	25200
8	322560
9	4717440
10	76204800
11	1357171200
12	26345088000
13	554204851200
14	12553673932800
15	304688127744000
16	7887891787776000
17	216969331138560000
18	6319142847553536000

[0,1,0,6,24,240,2160,25200,322560,4717440, 76204800,1357171200,26345088000,554204851200, 12553673932800,304688127744000,7887891787776000, 216969331138560000,6319142847553536000]