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A206837
as a simple table
n
a(n)
1
14124
2
199487376
3
1745398353572
4
15877946803718090
5
141405314141528391344
6
1266270368466567536724535
[14124,199487376,1745398353572,15877946803718090, 141405314141528391344,1266270368466567536724535]