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A344736 as a simple table

na(n)
12
23
331
443
537
67
7709
88941
91723
10163
111801
1213
1332077430821
14313296437089
15106776242048569
163345710409941689

[2,3,31,43,37,7,709,8941,1723,163,1801,13,
 32077430821,313296437089,106776242048569,
 3345710409941689]