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A328417 as a simple table

n a(n)
1 1
2 2
3 6
4 30
5 78
6 210
7 690
8 1050
9 4830

[1,2,6,30,78,210,690,1050,4830]

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Last modified April 16 01:40 EDT 2024. Contains 371696 sequences. (Running on oeis4.)