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A285874
as a simple table
n
a(n)
0
1
1
20
2
400
3
8702
4
188473
5
4505624
6
106770421
7
2770746488
8
71151220765
9
1969755500063
[1,20,400,8702,188473,4505624,106770421, 2770746488,71151220765,1969755500063]
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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)
