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A058221 as a simple table

na(n)
12
25
315
417
517
683
7173
8357
9629
10179
112543
128067
135619
1429027
1538783
1699267

[2,5,15,17,17,83,173,357,629,179,2543,8067,5619,
 29027,38783,99267]