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A241840 as a simple table

n a(n)
1 0
2 0
3 1
4 4
5 19
6 108
7 851
8 11112
9 261076
10 11716564

[0,0,1,4,19,108,851,11112,261076,11716564]

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Last modified July 5 08:02 EDT 2020. Contains 335464 sequences. (Running on oeis4.)