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A228353 as a simple table

na(n)
12
25
311
417
529
647
753
883
989
10107
11137
12173
13179
14197
15233
16263
17317
18389
19443
20449
21467
22569
23587
24593
25677
26683
27719
28809
29827
30839
31929
32947
331097
341163
351187
361223
371259
381289
391367
401433
411493
421523
431559
441619
451637
461667
471709
481847
491889
501973
511979

[2,5,11,17,29,47,53,83,89,107,137,173,179,197,233,
 263,317,389,443,449,467,569,587,593,677,683,719,
 809,827,839,929,947,1097,1163,1187,1223,1259,1289,
 1367,1433,1493,1523,1559,1619,1637,1667,1709,1847,
 1889,1973,1979]