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A129899 as a simple table

na(n)
17
211
319
423
531
641
761
867
983
1089
11101
12107
13127
14131
15173
16197
17263
18271
19277
20311
21353
22359
23373
24379
25389
26461
27467
28521
29653
30683
31719
32797
33827
34929
35967
36991
37997
381061
391069
401163
411181
421201
431231
441277
451291
461307
471447
481451
491453
501487
511553

[7,11,19,23,31,41,61,67,83,89,101,107,127,131,173,
 197,263,271,277,311,353,359,373,379,389,461,467,
 521,653,683,719,797,827,929,967,991,997,1061,1069,
 1163,1181,1201,1231,1277,1291,1307,1447,1451,1453,
 1487,1553]