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A165731 as a simple table

n a(n)
2 5
3 15
4 56
5 132
6 517
7 1202
8 3888
9 11911

[5,15,56,132,517,1202,3888,11911]

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Last modified April 18 11:51 EDT 2024. Contains 371779 sequences. (Running on oeis4.)