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A349666 as a simple table

na(n)
17
231
347
471
5127
6151
7167
8239
9311
10431
11439
12479
13607
14631
15647
16727
17839
18911
19967
20991
211039
221231
231319
241399
251471
261511
271559
281567
291607
301879
311951
321999
332111
342239
352311
362351
372447
382671
392719
402927
413119
423167
433191
443359
453391
463671
473727
483767
493911

[7,31,47,71,127,151,167,239,311,431,439,479,607,
 631,647,727,839,911,967,991,1039,1231,1319,1399,
 1471,1511,1559,1567,1607,1879,1951,1999,2111,2239,
 2311,2351,2447,2671,2719,2927,3119,3167,3191,3359,
 3391,3671,3727,3767,3911]