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A206569
as a simple table
n
a(n)
1
4
2
256
3
188699
4
1665431164
5
176372042982658
6
224922074723556223280
[4,256,188699,1665431164,176372042982658, 224922074723556223280]
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Last modified September 20 23:55 EDT 2024. Contains 376078 sequences. (Running on oeis4.)