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A145253
as a simple table
n
a(n)
1
1
2
7
3
1855
4
488509
5
4884669475
6
48533789554789
7
18312348548135120059
[1,7,1855,488509,4884669475,48533789554789, 18312348548135120059]
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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)