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A102049
as a simple table
n
a(n)
1
2
2
4
3
20
4
2073
5
688812
6
23493068282804
7
51287550456151700
[2,4,20,2073,688812,23493068282804, 51287550456151700]
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Last modified September 19 19:46 EDT 2024. Contains 376014 sequences. (Running on oeis4.)