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A106865 as a simple table

na(n)
12
23
37
423
543
647
767
883
9103
10107
11127
12163
13167
14223
15227
16263
17283
18307
19347
20367
21383
22443
23463
24467
25487
26503
27523
28547
29563
30587
31607
32643
33647
34683
35727
36743
37787
38823
39827
40863
41883
42887
43907
44947
45967
46983
471063
481087
491103
501123
511163
521187

[2,3,7,23,43,47,67,83,103,107,127,163,167,223,227,
 263,283,307,347,367,383,443,463,467,487,503,523,
 547,563,587,607,643,647,683,727,743,787,823,827,
 863,883,887,907,947,967,983,1063,1087,1103,1123,
 1163,1187]