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A208806
as a simple table
n
a(n)
1
1
2
2
3
7
4
82
5
1093
6
20409
7
486633
8
14395011
9
494288725
10
19525179009
[1,2,7,82,1093,20409,486633,14395011,494288725, 19525179009]