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A259339
as a simple table
n
a(n)
1
1
2
2
3
9
4
40
5
355
6
11490
7
7758233
8
549758283756
[1,2,9,40,355,11490,7758233,549758283756]
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Last modified May 1 20:04 EDT 2024. Contains 372176 sequences. (Running on oeis4.)
