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A280039
as a simple table
n
a(n)
1
1
2
6
3
20
4
280
5
18144
6
3326400
7
4633200
8
27243216000
[1,6,20,280,18144,3326400,4633200,27243216000]
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Last modified April 17 21:01 EDT 2024. Contains 371767 sequences. (Running on oeis4.)
