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A234960 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
1029
1131
1237
1341
1443
1547
1653
1759
1861
1967
2073
2179
2283
2389
2497
25103
26107
27113
28127
29131
30137
31139
32149
33157
34163
35167
36173
37179
38193
39197
40199
41211
42223
43227
44251
45257
46263
47271
48277
49281
50293
51307
52313
53317
54331
55337
56347
57353

[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,
 61,67,73,79,83,89,97,103,107,113,127,131,137,139,
 149,157,163,167,173,179,193,197,199,211,223,227,
 251,257,263,271,277,281,293,307,313,317,331,337,
 347,353]