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A263011 as a simple table

na(n)
117
241
373
489
597
6113
7137
8161
9193
10217
11233
12241
13257
14281
15313
16329
17337
18353
19401
20409
21433
22449
23457
24497
25521
26553
27569
28577
29593
30601
31617
32641
33673
34697
35713
36721
37761
38769
39809
40833
41857
42881
43889
44929
45937
46953
47977
481009
491033
501049
511057
521081
531097
541129
551153
561169
571193
581201
591217

[17,41,73,89,97,113,137,161,193,217,233,241,257,
 281,313,329,337,353,401,409,433,449,457,497,521,
 553,569,577,593,601,617,641,673,697,713,721,761,
 769,809,833,857,881,889,929,937,953,977,1009,1033,
 1049,1057,1081,1097,1129,1153,1169,1193,1201,1217]