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A081159
as a simple table
n
a(n)
0
0
1
0
2
2
3
20
4
148
5
986
6
5918
7
34708
8
202664
[0,0,2,20,148,986,5918,34708,202664]
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Last modified April 24 07:27 EDT 2024. Contains 371922 sequences. (Running on oeis4.)
