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A174627 as a simple table

n a(n)
0 0
1 1
2 3
3 11
4 55
5 545
6 14619
7 1363847

[0,1,3,11,55,545,14619,1363847]

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Last modified July 24 11:31 EDT 2024. Contains 374583 sequences. (Running on oeis4.)