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A195886
as a simple table
n
a(n)
1
1
2
1
3
5
4
65
5
1349
6
90013
7
17612909
8
7690681987
9
6760358933241
[1,1,5,65,1349,90013,17612909,7690681987, 6760358933241]
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Last modified September 4 18:12 EDT 2024. Contains 375685 sequences. (Running on oeis4.)