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A106935 as a simple table

na(n)
13
27
311
423
531
671
779
8107
9131
10139
11163
12167
13199
14211
15227
16283
17311
18347
19367
20379
21419
22431
23439
24479
25487
26499
27503
28547
29571
30607
31619
32643
33683
34691
35719
36743
37751
38787
39811
40823
41827
42839
43887
44907
45911
46947
47983
48991
491031
501051
511091
521151

[3,7,11,23,31,71,79,107,131,139,163,167,199,211,
 227,283,311,347,367,379,419,431,439,479,487,499,
 503,547,571,607,619,643,683,691,719,743,751,787,
 811,823,827,839,887,907,911,947,983,991,1031,1051,
 1091,1151]