A271401 - OEIS

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A271401 as a simple table

n	a(n)
1	0
2	0
3	14
4	2592
5	896832
6	685305792
7	1246974564672
8	5607184696618752
9	63628800211599189696
10	1845949854751814927534400
11	138092017951559818658767383936
12	26797163221892636458271315168303232

[0,0,14,2592,896832,685305792,1246974564672, 5607184696618752,63628800211599189696, 1845949854751814927534400, 138092017951559818658767383936, 26797163221892636458271315168303232]