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A215131 as a simple table

na(n)
13
25
319
429
531
671
783
897
9107
10109
11149
12211
13227
14239
15263
16317
17331
18367
19383
20409
21419
22421
23461
24487
25499
26523
27577
28601
29617
30643
31653
32733
33757
34773
35809
36811
37863
38877
39887
40929
41941
42967
43991
441019
451033
461069
471097
481123
491163
501201
511277
521279

[3,5,19,29,31,71,83,97,107,109,149,211,227,239,
 263,317,331,367,383,409,419,421,461,487,499,523,
 577,601,617,643,653,733,757,773,809,811,863,877,
 887,929,941,967,991,1019,1033,1069,1097,1123,1163,
 1201,1277,1279]