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A069687 as a simple table

na(n)
13
25
317
423
529
647
753
883
9107
10113
11131
12149
13173
14197
15239
16251
17317
18359
19383
20401
21443
22503
23509
24599
25641
26683
27701
28719
29743
30797
31821
32947
33953
341031
351049
361103
371109
381187
391229
401277
411283
421301
431373
441583
451613
461619
471637
481733
491847
501889

[3,5,17,23,29,47,53,83,107,113,131,149,173,197,
 239,251,317,359,383,401,443,503,509,599,641,683,
 701,719,743,797,821,947,953,1031,1049,1103,1109,
 1187,1229,1277,1283,1301,1373,1583,1613,1619,1637,
 1733,1847,1889]