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A156476
as a simple table
n
a(n)
4
54
5
20
6
3552
7
11364
8
2742240
9
56271108
10
23882769984
11
990946452040
12
760348893638560
[54,20,3552,11364,2742240,56271108,23882769984, 990946452040,760348893638560]
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Last modified May 7 00:25 EDT 2024. Contains 372298 sequences. (Running on oeis4.)
