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A280038
as a simple table
n
a(n)
1
1
2
7
3
31
4
653
5
71735
6
24880549
7
72207143
8
960901090937
[1,7,31,653,71735,24880549,72207143,960901090937]
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Last modified August 4 11:02 EDT 2024. Contains 374914 sequences. (Running on oeis4.)