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A057572
as a simple table
n
a(n)
1
1
2
1
3
12
4
148
5
3150
6
90075
7
3431015
[1,1,12,148,3150,90075,3431015]
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Last modified May 22 22:13 EDT 2022. Contains 353959 sequences. (Running on oeis4.)
