A172626 - OEIS

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A172626 as a simple table

n	a(n)
1	0
2	0
3	0
4	0
5	120
6	16214000
7	7873709050620
8	9350902053107858880
9	26088526624958727703324771
10	162526525004284727135887319788800
11	2143395673887060254676185406326252145600

[0,0,0,0,120,16214000,7873709050620, 9350902053107858880,26088526624958727703324771, 162526525004284727135887319788800, 2143395673887060254676185406326252145600]