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A205302 as a simple table

na(n)
13
27
319
423
531
643
747
871
9101
10103
11139
12151
13167
14197
15199
16271
17283
18311
19317
20367
21383
22397
23409
24457
25461
26463
27503
28523
29571
30619
31643
32647
33677
34743
35751
36773
37811
38823
39859
40863
41883
42887
43911
44937
45941
46991
471013
481051
491063
501117
511231
521279
531291
541301
551303
561483
571487

[3,7,19,23,31,43,47,71,101,103,139,151,167,197,
 199,271,283,311,317,367,383,397,409,457,461,463,
 503,523,571,619,643,647,677,743,751,773,811,823,
 859,863,883,887,911,937,941,991,1013,1051,1063,
 1117,1231,1279,1291,1301,1303,1483,1487]