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A154625 as a simple table

na(n)
15
223
347
453
583
689
7149
8179
9317
10347
11353
12359
13389
14467
15503
16557
17569
18647
19683
20773
21929
22947
23977
24983
251019
261103
271193
281217
291229
301283
311307
321319
331439
341733
351847
361889
371907
382069
392153
402243
412309
422357
432393
442399
452417
462657
472687
482693

[5,23,47,53,83,89,149,179,317,347,353,359,389,467,
 503,557,569,647,683,773,929,947,977,983,1019,1103,
 1193,1217,1229,1283,1307,1319,1439,1733,1847,1889,
 1907,2069,2153,2243,2309,2357,2393,2399,2417,2657,
 2687,2693]