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A031913 as a simple table

na(n)
15
237
373
4113
5167
6223
7269
8317
9379
10433
11487
12557
13607
14659
15727
16787
17853
18911
19977
201033
211093
221163
231229
241291
251367
261439
271489
281559
291613
301693
311753
321831
331901
341987
352039
362111
372179
382267
392333
402383
412447
422543
432621

[5,37,73,113,167,223,269,317,379,433,487,557,607,
 659,727,787,853,911,977,1033,1093,1163,1229,1291,
 1367,1439,1489,1559,1613,1693,1753,1831,1901,1987,
 2039,2111,2179,2267,2333,2383,2447,2543,2621]