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A106059 as a simple table

na(n)
15
27
311
413
517
623
737
847
961
1073
1183
12101
13103
14107
15131
16151
17173
18233
19257
20263
21271
22277
23311
24331
25347
26367
27373
28443
29461
30503
31557
32593
33601
34607
35641
36653
37727
38751
39853
40941
41947
42971
431013
441033
451063
461091
471103
481117
491283
501321
511361

[5,7,11,13,17,23,37,47,61,73,83,101,103,107,131,
 151,173,233,257,263,271,277,311,331,347,367,373,
 443,461,503,557,593,601,607,641,653,727,751,853,
 941,947,971,1013,1033,1063,1091,1103,1117,1283,
 1321,1361]