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A277348
as a simple table
n
a(n)
1
1
2
11
3
341
4
581337017
5
7202608727
6
27146455379
7
1358496201131
8
9843739213499
9
172392038905691
[1,11,341,581337017,7202608727,27146455379, 1358496201131,9843739213499,172392038905691]