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A105891 as a simple table

na(n)
12
23
313
429
531
637
741
853
959
1067
1171
1279
1389
14103
15107
16113
17167
18173
19179
20193
21223
22227
23257
24269
25281
26293
27317
28331
29337
30379
31383
32401
33431
34433
35439
36449
37509
38521
39547
40563
41569
42601
43607
44641
45659
46673
47677
48683
49743
50751
51773
52787
53797
54827
55829
56839
57857
58863

[2,3,13,29,31,37,41,53,59,67,71,79,89,103,107,113,
 167,173,179,193,223,227,257,269,281,293,317,331,
 337,379,383,401,431,433,439,449,509,521,547,563,
 569,601,607,641,659,673,677,683,743,751,773,787,
 797,827,829,839,857,863]