A012102 - OEIS

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A012102 as a simple table

n	a(n)
0	1
1	0
2	4
3	192
4	9616
5	1115392
6	172350528
7	37703053312
8	10989042954496
9	4099556761067520
10	1910734175200936960
11	1087150572502335373312
12	741705342559787764715520
13	597689034047543849712812032

[1,0,4,192,9616,1115392,172350528,37703053312, 10989042954496,4099556761067520, 1910734175200936960,1087150572502335373312, 741705342559787764715520, 597689034047543849712812032]