A265660 - OEIS

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A265660 as a simple table

n	a(n)
1	0
2	0
3	0
4	112
5	4912
6	265440
7	31924032
8	3170361984
9	597787563264
10	97379218955520
11	26489701471180800
12	6432079809975552000

[0,0,0,112,4912,265440,31924032,3170361984, 597787563264,97379218955520,26489701471180800, 6432079809975552000]