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A318171 as a simple table

na(n)
12
2269
3269
43823
58539
6729551
71416329
823592593
91478674861
1020458458289
117558026467353
12201008815538749

[2,269,269,3823,8539,729551,1416329,23592593,
 1478674861,20458458289,7558026467353,
 201008815538749]