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A156491
as a simple table
n
a(n)
2
1
3
4
4
18
5
818
6
310150
7
480685728
8
1904647839311
9
14116339350926312
[1,4,18,818,310150,480685728,1904647839311, 14116339350926312]
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Last modified April 25 09:25 EDT 2024. Contains 371967 sequences. (Running on oeis4.)
