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A076020 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 3
6 6
7 24
8 178
9 1328

[0,0,0,1,3,6,24,178,1328]

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Last modified April 24 11:01 EDT 2024. Contains 371936 sequences. (Running on oeis4.)