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A000817 as a simple table

n a(n)
1 16
2 80
3 1056
4 320416
5 1858620869536
6 16880173675357998942609488800
7 706695723125809149019144715477884710572926078237246360174451424 

[16,80,1056,320416,1858620869536,
 16880173675357998942609488800,
 70669572312580914901914471547788471057292607823724\
 6360174451424]

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Last modified April 19 17:49 EDT 2024. Contains 371797 sequences. (Running on oeis4.)