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A018899 as a simple table

n a(n)
0 1
1 5
2 23
3 431
4 18431
5 3448733
6 1441896119

[1,5,23,431,18431,3448733,1441896119]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)