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A031342 as a simple table

na(n)
123
261
3103
4151
5197
6251
7307
8359
9419
10463
11523
12593
13643
14701
15761
16827
17883
18953
191019
201069
211129
221213
231279
241321
251427
261481
271543
281601
291663
301733
311801
321877
331951
342017
352087
362143
372239
382297
392371
402423
412521
422593

[23,61,103,151,197,251,307,359,419,463,523,593,
 643,701,761,827,883,953,1019,1069,1129,1213,1279,
 1321,1427,1481,1543,1601,1663,1733,1801,1877,1951,
 2017,2087,2143,2239,2297,2371,2423,2521,2593]