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A263627 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 2
8 8
9 33
10 306
11 6727
12 219754

[0,0,0,0,0,1,2,8,33,306,6727,219754]

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Last modified March 30 06:12 EDT 2020. Contains 333119 sequences. (Running on oeis4.)