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A213377 as a simple table

n a(n)
1 1
2 3
3 20
4 170
5 1728
6 18878
7 214278
8 2488176
9 29356463

[1,3,20,170,1728,18878,214278,2488176,29356463]

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Last modified October 20 17:39 EDT 2017. Contains 293648 sequences.