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A178017 as a simple table

n a(n)
1 1
2 4
3 38
4 820
5 42928
6 2352068
7 273609756
8 39956342600
9 10520852944576

[1,4,38,820,42928,2352068,273609756,39956342600,
 10520852944576]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)