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A256828
as a simple table
n
a(n)
1
2
2
6
3
18
4
48
5
204
6
10386
7
19524
8
28320
[2,6,18,48,204,10386,19524,28320]
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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)