A172750 - OEIS

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A172750 as a simple table

n	a(n)
1	0
2	6
3	81225
4	19641294288
5	37642786694586601
6	407505677116244252111280
7	19524684484378921494922081853046
8	3444203485343904342478939367221160666880

[0,6,81225,19641294288,37642786694586601, 407505677116244252111280, 19524684484378921494922081853046, 3444203485343904342478939367221160666880]