A340291 - OEIS

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A340291 as a simple table

n	a(n)
0	1
1	15
2	32625
3	8238791743
4	230629380093001665
5	703130165949449759361247759
6	231459008314298532714943209968328640625
7	8186710889725936196671113787217620194601044287109375

[1,15,32625,8238791743,230629380093001665, 703130165949449759361247759, 231459008314298532714943209968328640625, 81867108897259361966711137872176201946010442871093\ 75]