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A267782
as a simple table
n
a(n)
1
2
2
16
3
216
4
5081
5
122770
6
4245574
7
132388406
8
5520112546
9
217360101006
10
10635681264937
[2,16,216,5081,122770,4245574,132388406, 5520112546,217360101006,10635681264937]