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A267945 as a simple table

na(n)
15
27
311
413
519
629
731
843
961
1073
1183
12103
13109
14127
15139
16151
17181
18193
19199
20229
21241
22271
23283
24313
25349
26421
27433
28463
29523
30571
31601
32619
33643
34661
35811
36823
37829
38859
39883

[5,7,11,13,19,29,31,43,61,73,83,103,109,127,139,
 151,181,193,199,229,241,271,283,313,349,421,433,
 463,523,571,601,619,643,661,811,823,829,859,883]