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A268923 as a simple table

na(n)
117
231
341
443
573
689
797
8109
9113
10127
11137
12151
13157
14193
15223
16229
17233
18241
19251
20257
21277
22281
23283
24307
25313
26331
27337
28353
29397
30401
31409
32431
33433
34439
35449
36457
37499
38521
39569
40571
41577
42593
43601
44617
45631
46641
47643
48673
49683
50691
51727
52733
53739
54761
55769
56809
57811
58857
59881
60911
61919

[17,31,41,43,73,89,97,109,113,127,137,151,157,193,
 223,229,233,241,251,257,277,281,283,307,313,331,
 337,353,397,401,409,431,433,439,449,457,499,521,
 569,571,577,593,601,617,631,641,643,673,683,691,
 727,733,739,761,769,809,811,857,881,911,919]