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A031909 as a simple table

na(n)
17
241
379
4127
5173
6227
7271
8331
9383
10439
11491
12563
13613
14661
15733
16797
17857
18919
19983
201039
211097
221171
231231
241297
251373
261447
271493
281567
291619
301697
311759
321847
331907
341993
352053
362113
372203
382269
392339
402389
412459
422549
432633

[7,41,79,127,173,227,271,331,383,439,491,563,613,
 661,733,797,857,919,983,1039,1097,1171,1231,1297,
 1373,1447,1493,1567,1619,1697,1759,1847,1907,1993,
 2053,2113,2203,2269,2339,2389,2459,2549,2633]