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A244529 as a simple table

na(n)
12
23
35
47
519
623
729
841
943
1047
1153
1259
1361
1467
1583
1689
17257
18263
19269
20431
21487
22523
23541
24827
25829
26853
27859
282861
295623
305849

[2,3,5,7,19,23,29,41,43,47,53,59,61,67,83,89,257,
 263,269,431,487,523,541,827,829,853,859,2861,5623,
 5849]