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A038680 as a simple table

na(n)
113
217
323
437
543
647
753
867
973
1083
1197
12103
13107
14113
15127
16131
17137
18157
19163
20167
21173
22179
23193
24197
25211
26223
27227
28229
29233
30241
31257
32263
33271
34277
35283
36293
37307
38311
39313
40317
41331
42337
43347
44353
45359
46367
47373
48379
49383
50389
51397

[13,17,23,37,43,47,53,67,73,83,97,103,107,113,127,
 131,137,157,163,167,173,179,193,197,211,223,227,
 229,233,241,257,263,271,277,283,293,307,311,313,
 317,331,337,347,353,359,367,373,379,383,389,397]