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A106906 as a simple table

na(n)
12
27
311
419
531
647
759
867
971
1083
11151
12163
13167
14223
15227
16239
17271
18307
19331
20359
21379
22383
23431
24463
25479
26487
27499
28587
29619
30631
31643
32683
33691
34739
35743
36787
37811
38827
39839
40863
41947
42967
43983
441019
451051
461087
471103
481123
491151
501163
511259
521279

[2,7,11,19,31,47,59,67,71,83,151,163,167,223,227,
 239,271,307,331,359,379,383,431,463,479,487,499,
 587,619,631,643,683,691,739,743,787,811,827,839,
 863,947,967,983,1019,1051,1087,1103,1123,1151,
 1163,1259,1279]