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A268562
as a simple table
n
a(n)
1
2
2
6
3
20
4
108
5
776
6
7772
7
92172
8
1291048
9
20644140
[2,6,20,108,776,7772,92172,1291048,20644140]
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Last modified July 13 08:08 EDT 2024. Contains 374274 sequences. (Running on oeis4.)
