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A165985 as a simple table

na(n)
123
231
367
479
5139
6151
7167
8181
9277
10337
11379
12433
13479
14541
15641
16709
17739
18757
19797
20811
21919
221069
231087
241237
251279
261399
271619
281697
291787
301801
311951
322083
332137
342207
352311
362503
372557
382659
392713
402767
412833
422939
433049
443061
453079
463169
473301
483547
493677

[23,31,67,79,139,151,167,181,277,337,379,433,479,
 541,641,709,739,757,797,811,919,1069,1087,1237,
 1279,1399,1619,1697,1787,1801,1951,2083,2137,2207,
 2311,2503,2557,2659,2713,2767,2833,2939,3049,3061,
 3079,3169,3301,3547,3677]