A250567 - OEIS

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A250567 as a simple table

n	a(n)
1	512
2	39852
3	9583440
4	6967413024
5	15037777879872
6	99734163008521518
7	2034240174378849957658
8	127927996167974091553962336

[512,39852,9583440,6967413024,15037777879872, 99734163008521518,2034240174378849957658, 127927996167974091553962336]