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A163075 as a simple table

na(n)
12
23
37
431
571
6631
73433
851481
92704157
10280816201
114808643121
1235345263801
132104098963721
1494684453367401
151580132580471901
16483701705079089804581
176892620648693261354601
18410795449442059149332177041
192522283613639104833370312431401

[2,3,7,31,71,631,3433,51481,2704157,280816201,
 4808643121,35345263801,2104098963721,
 94684453367401,1580132580471901,
 483701705079089804581,6892620648693261354601,
 410795449442059149332177041,
 2522283613639104833370312431401]