A215227 - OEIS

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A215227 as a simple table

n	a(n)
1	8
2	56
3	336
4	2352
5	15120
6	105168
7	710640
8	4883424
9	33384960
10	228945360
11	1568401296
12	10751253072
13	73683206688
14	505043014560

[8,56,336,2352,15120,105168,710640,4883424, 33384960,228945360,1568401296,10751253072, 73683206688,505043014560]