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A069331
as a simple table
n
a(n)
1
1
2
1681
3
1332456
4
804230945
5
424660442975
6
207204257344200
[1,1681,1332456,804230945,424660442975, 207204257344200]
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Last modified April 18 15:00 EDT 2024. Contains 371780 sequences. (Running on oeis4.)