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A191086 as a simple table

na(n)
13
223
331
437
541
653
759
861
973
1083
11101
12113
13127
14131
15137
16149
17151
18157
19167
20173
21193
22197
23199
24223
25233
26251
27257
28269
29277
30281
31283
32307
33311
34313
35331
36347
37359
38367
39379
40397
41409
42433
43449
44463
45491
46503
47523
48541
49569
50571
51577
52593
53599
54607

[3,23,31,37,41,53,59,61,73,83,101,113,127,131,137,
 149,151,157,167,173,193,197,199,223,233,251,257,
 269,277,281,283,307,311,313,331,347,359,367,379,
 397,409,433,449,463,491,503,523,541,569,571,577,
 593,599,607]