A206269 - OEIS

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A206269 as a simple table

n	a(n)
1	81
2	972
3	12429
4	145824
5	2243139
6	39044748
7	964315869
8	27362301828
9	1106854279383
10	53489846569626
11	3690406822607805

[81,972,12429,145824,2243139,39044748,964315869, 27362301828,1106854279383,53489846569626, 3690406822607805]