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A140532 as a simple table

n a(n)
1 4
2 20
3 83
4 395
5 1610
6 5045
7 12850
8 23082
9 0

[4,20,83,395,1610,5045,12850,23082,0]

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Last modified April 23 13:25 EDT 2019. Contains 322386 sequences. (Running on oeis4.)