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A105901 as a simple table

na(n)
12
217
323
441
559
671
773
883
989
1097
11101
12103
13107
14113
15137
16139
17167
18179
19199
20223
21227
22229
23239
24269
25293
26317
27337
28347
29383
30389
31409
32419
33431
34433
35439
36449
37461
38463
39499
40523
41569
42587
43601
44631
45643
46647
47653
48677
49683
50691
51719
52769
53773
54787
55797
56809
57853

[2,17,23,41,59,71,73,83,89,97,101,103,107,113,137,
 139,167,179,199,223,227,229,239,269,293,317,337,
 347,383,389,409,419,431,433,439,449,461,463,499,
 523,569,587,601,631,643,647,653,677,683,691,719,
 769,773,787,797,809,853]