A210910 - OEIS

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A210910 as a simple table

n	a(n)
1	1
2	3
3	23
4	401
5	13984
6	970083
7	132838634
8	35924634547
9	19142194392682
10	20077037322761989
11	41429745313369193161
12	168164789977096418548306

[1,3,23,401,13984,970083,132838634,35924634547, 19142194392682,20077037322761989, 41429745313369193161,168164789977096418548306]