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A285015 as a simple table

na(n)
13
27
311
419
523
631
743
847
953
1059
1167
1271
1379
1483
15103
16107
17127
18131
19139
20151
21163
22167
23179
24191
25199
26211
27223
28227
29239
30251
31263
32269
33271
34283
35307
36311
37331
38347
39359
40367
41379
42383
43419
44431
45439
46443
47463
48467
49479
50487
51491
52499
53503
54523
55547

[3,7,11,19,23,31,43,47,53,59,67,71,79,83,103,107,
 127,131,139,151,163,167,179,191,199,211,223,227,
 239,251,263,269,271,283,307,311,331,347,359,367,
 379,383,419,431,439,443,463,467,479,487,491,499,
 503,523,547]