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A130649 as a simple table

n a(n)
0 1
1 2
2 8
3 42
4 260
5 1796
6 13372
7 104922
8 854964
9 7165500

[1,2,8,42,260,1796,13372,104922,854964,7165500]

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Last modified May 13 22:47 EDT 2021. Contains 343868 sequences. (Running on oeis4.)