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A246969 as a simple table

n a(n)
1 1
2 2
3 31
4 1272
5 105720
6 15492600
7 3621844800

[1,2,31,1272,105720,15492600,3621844800]

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Last modified March 29 10:59 EDT 2024. Contains 371277 sequences. (Running on oeis4.)