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A050778 as a simple table

na(n)
111
217
319
423
529
631
741
847
953
1059
1171
1279
1383
1489
15103
16107
17109
18113
19127
20131
21149
22151
23167
24179
25191
26227
27229
28239
29241
30251
31263
32269
33271
34293
35311
36313
37317
38331
39337
40359
41373
42383
43401
44419
45431
46439
47443
48449
49461
50467
51479
52491
53503
54509
55521

[11,17,19,23,29,31,41,47,53,59,71,79,83,89,103,
 107,109,113,127,131,149,151,167,179,191,227,229,
 239,241,251,263,269,271,293,311,313,317,331,337,
 359,373,383,401,419,431,439,443,449,461,467,479,
 491,503,509,521]