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A259705 as a simple table

n a(n)
2 0
3 0
4 2
5 8
6 80
7 480
8 5040
9 40320

[0,0,2,8,80,480,5040,40320]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)