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A156494 as a simple table

n a(n)
3 4
4 74
5 184
6 8852
7 37944
8 21579568
9 316294683
10 816922403024

[4,74,184,8852,37944,21579568,316294683,
 816922403024]

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Last modified August 19 18:08 EDT 2024. Contains 375310 sequences. (Running on oeis4.)