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A191087 as a simple table

na(n)
17
217
323
429
531
641
743
847
959
1071
1173
1279
1383
1489
15109
16137
17151
18157
19163
20179
21181
22197
23211
24233
25241
26263
27269
28277
29281
30283
31313
32331
33347
34353
35367
36379
37397
38401
39409
40421
41431
42439
43443
44449
45457
46463
47467
48503
49509
50521
51557
52569
53577
54587
55593

[7,17,23,29,31,41,43,47,59,71,73,79,83,89,109,137,
 151,157,163,179,181,197,211,233,241,263,269,277,
 281,283,313,331,347,353,367,379,397,401,409,421,
 431,439,443,449,457,463,467,503,509,521,557,569,
 577,587,593]