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A072456 as a simple table

na(n)
13
27
311
417
547
653
761
867
973
1079
1189
12101
13139
14151
15157
16191
17199
18229
19233
20241
21263
22269
23277
24283
25311
26317
27337
28347
29359
30367
31379
32397
33433
34449
35467
36487
37503
38521
39541
40563
41569
42571
43577
44593
45607
46613
47619
48647
49659
50673
51683
52691
53727
54743
55769
56773
57809
58823
59827
60911
61919
62929
63953
64971
65991

[3,7,11,17,47,53,61,67,73,79,89,101,139,151,157,
 191,199,229,233,241,263,269,277,283,311,317,337,
 347,359,367,379,397,433,449,467,487,503,521,541,
 563,569,571,577,593,607,613,619,647,659,673,683,
 691,727,743,769,773,809,823,827,911,919,929,953,
 971,991]