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A100858
as a simple table
n
a(n)
1
3
2
5
3
29
4
727
5
3628811
6
80658175170943878571660636856403766975289505440883277824000000000053
[3,5,29,727,3628811, 80658175170943878571660636856403766975289505440883\ 277824000000000053]