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A122565 as a simple table

na(n)
15
27
317
419
529
631
741
843
9101
10103
11137
12139
13149
14151
15197
16199
17269
18271
19281
20283
21461
22463
23521
24523
25569
26571
27617
28619
29641
30643
31809
32811
33821
34823
35857
36859
37881
38883
391049
401051
411061
421063
431229
441231
451277
461279
471289
481291
491301
501303
511481

[5,7,17,19,29,31,41,43,101,103,137,139,149,151,
 197,199,269,271,281,283,461,463,521,523,569,571,
 617,619,641,643,809,811,821,823,857,859,881,883,
 1049,1051,1061,1063,1229,1231,1277,1279,1289,1291,
 1301,1303,1481]