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A172663 as a simple table

n a(n)
1 0
2 0
3 1
4 6152037276
5 2630024635942177123650
6 16157198427400511406055803977773761
7 1126052188643363954802820836947166068046894450600 

[0,0,1,6152037276,2630024635942177123650,
 16157198427400511406055803977773761,
 1126052188643363954802820836947166068046894450600]

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Last modified August 27 15:26 EDT 2024. Contains 375470 sequences. (Running on oeis4.)