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A143387 as a simple table

na(n)
13
253
311
417
5317
689
71259
82543
97517
1016217
1115107
1233119
1360611
14671063
152648057

[3,53,11,17,317,89,1259,2543,7517,16217,15107,
 33119,60611,671063,2648057]