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A002811
as a simple table
n
a(n)
1
1
2
5
3
23
4
1681
5
257543
6
67637281
7
27138236663
8
15442193173681
[1,5,23,1681,257543,67637281,27138236663, 15442193173681]
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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)
