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A191085 as a simple table

na(n)
12
23
311
417
537
661
767
871
9101
10103
11109
12131
13137
14139
15149
16151
17157
18163
19173
20181
21193
22197
23199
24239
25251
26257
27269
28281
29283
30311
31313
32317
33331
34359
35367
36379
37401
38419
39421
40431
41433
42439
43449
44457
45463
46467
47487
48499
49503
50521
51523
52541
53557
54563

[2,3,11,17,37,61,67,71,101,103,109,131,137,139,
 149,151,157,163,173,181,193,197,199,239,251,257,
 269,281,283,311,313,317,331,359,367,379,401,419,
 421,431,433,439,449,457,463,467,487,499,503,521,
 523,541,557,563]