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A105318
as a simple table
n
a(n)
1
5
2
3
3
271
4
169219
5
356498179
6
2500282512131
7
20594058719087111
8
2185103796349763249
[5,3,271,169219,356498179,2500282512131, 20594058719087111,2185103796349763249]