A231053 - OEIS

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A231053 as a simple table

n	a(n)
1	0
2	22
3	2430
4	18688
5	344136
6	10631552
7	274004640
8	6591073664
9	162458658900
10	4045673867452
11	100391649169040
12	2487331534394008
13	61659987625594416
14	1528888686849171692
15	37906407338692090040
16	939795970497387880692

[0,22,2430,18688,344136,10631552,274004640, 6591073664,162458658900,4045673867452, 100391649169040,2487331534394008, 61659987625594416,1528888686849171692, 37906407338692090040,939795970497387880692]