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A129518 as a simple table

na(n)
13
27
347
459
579
683
7103
8107
9127
10139
11191
12199
13211
14251
15263
16283
17307
18331
19367
20379
21383
22431
23467
24479
25499
26503
27547
28587
29599
30607
31631
32643
33659
34727
35743
36811
37823
38827
39839
40859
41863
42883
43887
44907
45971
46991
471087
481151
491163
501171
511259
521283

[3,7,47,59,79,83,103,107,127,139,191,199,211,251,
 263,283,307,331,367,379,383,431,467,479,499,503,
 547,587,599,607,631,643,659,727,743,811,823,827,
 839,859,863,883,887,907,971,991,1087,1151,1163,
 1171,1259,1283]