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A215280 as a simple table

na(n)
12
23
317
429
541
643
767
8107
9173
10197
11199
12211
13223
14251
15263
16277
17353
18367
19379
20419
21431
22433
23457
24509
25523
26563
27587
28601
29613
30641
31653
32691
33719
34743
35757
36769
37797
38809
39821
40823
41887
42953
43977
44991
451031
461069
471109
481187
491213
501237
511277

[2,3,17,29,41,43,67,107,173,197,199,211,223,251,
 263,277,353,367,379,419,431,433,457,509,523,563,
 587,601,613,641,653,691,719,743,757,769,797,809,
 821,823,887,953,977,991,1031,1069,1109,1187,1213,
 1237,1277]