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A106898 as a simple table

na(n)
12
27
353
459
561
689
797
8131
9157
10173
11263
12283
13331
14337
15353
16379
17431
18479
19491
20521
21541
22601
23613
24643
25647
26683
27709
28719
29739
30827
31883
32911
33941
34967
35991
361021
371087
381093
391117
401129
411181
421217
431229
441231
451367
461399
471427
481489
491493

[2,7,53,59,61,89,97,131,157,173,263,283,331,337,
 353,379,431,479,491,521,541,601,613,643,647,683,
 709,719,739,827,883,911,941,967,991,1021,1087,
 1093,1117,1129,1181,1217,1229,1231,1367,1399,1427,
 1489,1493]