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A270123 as a simple table

na(n)
119
243
347
459
567
671
779
883
9103
10107
11131
12139
13151
14163
15167
16179
17191
18199
19211
20223
21227
22239
23251
24263
25271
26283
27311
28331
29347
30359
31367
32379
33383
34419
35431
36439
37443
38463
39467
40479
41487
42491
43499

[19,43,47,59,67,71,79,83,103,107,131,139,151,163,
 167,179,191,199,211,223,227,239,251,263,271,283,
 311,331,347,359,367,379,383,419,431,439,443,463,
 467,479,487,491,499]