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A180952 as a simple table

na(n)
15
27
311
417
519
623
729
831
941
1053
1161
1267
1371
1479
1583
1697
17101
18103
19107
20113
21131
22139
23149
24173
25179
26191
27211
28223
29227
30229
31233
32239
33241
34271
35277
36281
37307
38311
39313
40347
41353
42359
43379
44383
45397
46401
47419
48431
49439
50443
51449
52457
53461
54467
55479
56487

[5,7,11,17,19,23,29,31,41,53,61,67,71,79,83,97,
 101,103,107,113,131,139,149,173,179,191,211,223,
 227,229,233,239,241,271,277,281,307,311,313,347,
 353,359,379,383,397,401,419,431,439,443,449,457,
 461,467,479,487]