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A145743 as a simple table

na(n)
19
215
325
425
5247
6583
75377
8143473
9143473
10143473
112821813
1262087033647
1391450844347

[9,15,25,25,247,583,5377,143473,143473,143473,
 2821813,62087033647,91450844347]