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A316348 as a simple table

na(n)
235
335
477
577
6143
7143
8143
9143
10299
11299
12323
13323
14323
15323
16437
17437
18667
19667
20667
21667
22899
23899
24899
25899
26899
27899
281457
291457
301739
311739
321739
331739
341739
351739
361763
371763
381763
391763
402021
412021
422491
432491
442491
452491
463127
473127
483127
493127
503127

[35,35,77,77,143,143,143,143,299,299,323,323,323,
 323,437,437,667,667,667,667,899,899,899,899,899,
 899,1457,1457,1739,1739,1739,1739,1739,1739,1763,
 1763,1763,1763,2021,2021,2491,2491,2491,2491,3127,
 3127,3127,3127,3127]