A012443 - OEIS

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A012443 as a simple table

n	a(n)
0	1
1	0
2	-12
3	120
4	-1008
5	-45120
6	-11491392
7	1378925184
8	-443544192768
9	53698137606144
10	-32840379055537152
11	7093049054642411520
12	-6636093887068155801600
13	2065820944848385959936000

[1,0,-12,120,-1008,-45120,-11491392,1378925184, -443544192768,53698137606144,-32840379055537152, 7093049054642411520,-6636093887068155801600, 2065820944848385959936000]