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A202161 as a simple table

n a(n)
1 0
2 0
3 55
4 11710
5 3903255
6 3063974013
7 6430557449984

[0,0,55,11710,3903255,3063974013,6430557449984]

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Last modified August 23 21:15 EDT 2024. Contains 375396 sequences. (Running on oeis4.)