A012066 - OEIS

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A012066 as a simple table

n	a(n)
0	1
1	0
2	12
3	248
4	21648
5	2241088
6	390536000
7	91111189120
8	28811937609984
9	11657540060256256
10	5912796798580972544
11	3665610214092467574784
12	2729315998404117133692928
13	2402622277659457905178820608

[1,0,12,248,21648,2241088,390536000,91111189120, 28811937609984,11657540060256256, 5912796798580972544,3665610214092467574784, 2729315998404117133692928, 2402622277659457905178820608]