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A206549 as a simple table

na(n)
13
25
313
417
531
69
723
811
927
1055
1175
1291
1333
1415
1537
16105
17129
1893
1919
2081
21183
22107
2389
24177
25241
26187
27217
2853
29155
3025
31203
32189
33213
34311
35269
36115
3763
38381
39143
4029
41179
4267
43109
44413
45301
46235
47489
48439
49483
50553

[3,5,13,17,31,9,23,11,27,55,75,91,33,15,37,105,
 129,93,19,81,183,107,89,177,241,187,217,53,155,25,
 203,189,213,311,269,115,63,381,143,29,179,67,109,
 413,301,235,489,439,483,553]