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A138539 as a simple table

na(n)
12
23
35
47
513
617
719
837
941
1043
1161
1273
1389
1497
15101
16109
17113
18157
19163
20181
21193
22233
23241
24257
25277
26281
27313
28337
29349
30353
31397
32401
33409
34421
35433
36449
37457
38461
39487
40521
41541
42577
43593
44601
45613
46617
47641
48661
49673
50701
51733
52757
53761
54769
55821
56829

[2,3,5,7,13,17,19,37,41,43,61,73,89,97,101,109,
 113,157,163,181,193,233,241,257,277,281,313,337,
 349,353,397,401,409,421,433,449,457,461,487,521,
 541,577,593,601,613,617,641,661,673,701,733,757,
 761,769,821,829]