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A320648 as a simple table

n a(n)
1 0
2 0
3 1
4 1
5 2
6 11
7 26
8 122
9 781

[0,0,1,1,2,11,26,122,781]

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Last modified February 21 23:21 EST 2020. Contains 332113 sequences. (Running on oeis4.)