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A051750 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
1029
1131
1241
1353
1461
1571
1683
1797
18113
19137
20139
21151
22157
23167
24173
25179
26181
27191
28197
29211
30233
31239
32241
33251
34257
35263
36277
37283
38293
39307
40331
41337
42347
43353
44359
45373
46379
47383
48389
49409
50421
51433
52457
53461
54463
55499
56503

[2,3,5,7,11,13,17,19,23,29,31,41,53,61,71,83,97,
 113,137,139,151,157,167,173,179,181,191,197,211,
 233,239,241,251,257,263,277,283,293,307,331,337,
 347,353,359,373,379,383,389,409,421,433,457,461,
 463,499,503]