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A235475 as a simple table

na(n)
12
27
311
413
519
641
759
8127
9151
10157
11167
12173
13181
14191
15223
16233
17241
18271
19313
20331
21409
22421
23443
24463
25541
26563
27577
28607
29613
30641
31701
32709
33733
34743
35809
36859
37877
38919
39929
40953
41967
42991
431021
441033
451069
461087
471193
481259
491373
501423
511451
521453
531471
541483
551493
561549
571697
581753
591759
601783
611787
621831
631877
641979
651993

[2,7,11,13,19,41,59,127,151,157,167,173,181,191,
 223,233,241,271,313,331,409,421,443,463,541,563,
 577,607,613,641,701,709,733,743,809,859,877,919,
 929,953,967,991,1021,1033,1069,1087,1193,1259,
 1373,1423,1451,1453,1471,1483,1493,1549,1697,1753,
 1759,1783,1787,1831,1877,1979,1993]