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A271347 as a simple table

na(n)
13
25
323
429
541
659
771
889
9101
10113
11173
12191
13233
14239
15269
16293
17311
18359
19383
20401
21419
22449
23461
24503
25509
26563
27569
28593
29653
30701
31719
32773
33821
34839
35881
36929
37953
38971
39983
401013
411031
421049
431091
441163
451193
461259
471283
481289

[3,5,23,29,41,59,71,89,101,113,173,191,233,239,
 269,293,311,359,383,401,419,449,461,503,509,563,
 569,593,653,701,719,773,821,839,881,929,953,971,
 983,1013,1031,1049,1091,1163,1193,1259,1283,1289]