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A371694 as a simple table

na(n)
12
23
35
47
511
613
719
823
929
1037
1143
1247
1353
1461
1571
1679
1789
1897
19107
20113
21127
22137
23139
24151
25163
26173
27181
28193
29199
30211
31223
32233
33241
34251
35263
36277
37283
38293
39307
40317
41331
42337
43353
44367
45379
46389
47401
48409
49421
50433
51449
52463
53467
54479
55491
56503

[2,3,5,7,11,13,19,23,29,37,43,47,53,61,71,79,89,
 97,107,113,127,137,139,151,163,173,181,193,199,
 211,223,233,241,251,263,277,283,293,307,317,331,
 337,353,367,379,389,401,409,421,433,449,463,467,
 479,491,503]