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A059613 as a simple table

na(n)
15
27
315
447
581
6115
7267
8285
97641
1019089
1125831
1232115
1359811
1470155
15178715

[5,7,15,47,81,115,267,285,7641,19089,25831,32115,
 59811,70155,178715]