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A103598 as a simple table

na(n)
12
22
33
43
55
611
717
841
997
10277
111013
124789
1331627
14314723
155195977
16159490147
1710443979657

[2,2,3,3,5,11,17,41,97,277,1013,4789,31627,314723,
 5195977,159490147,10443979657]