A210816 - OEIS

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A210816 as a simple table

n	a(n)
1	0
2	12
3	551
4	49223
5	10022877
6	4814973856
7	5473507216675
8	14733719538503109
9	93906982953302482787
10	1417227544717910923643049

[0,12,551,49223,10022877,4814973856,5473507216675, 14733719538503109,93906982953302482787, 1417227544717910923643049]