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A023203 as a simple table

na(n)
13
27
313
419
531
637
743
861
973
1079
1197
12103
13127
14139
15157
16163
17181
18223
19229
20241
21271
22283
23307
24337
25349
26373
27379
28409
29421
30433
31439
32457
33499
34547
35577
36607
37631
38643
39673
40691
41709
42733
43751
44787
45811
46829
47853
48877
49919
50937
51967
521009
531021
541039
551051

[3,7,13,19,31,37,43,61,73,79,97,103,127,139,157,
 163,181,223,229,241,271,283,307,337,349,373,379,
 409,421,433,439,457,499,547,577,607,631,643,673,
 691,709,733,751,787,811,829,853,877,919,937,967,
 1009,1021,1039,1051]