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A224513 as a simple table

na(n)
01
15
217
321
433
569
681
785
897
9133
10241
11277
12289
13325
14337
15341
16353
17389
18497
19533
20641
21965
221073
231109
241121
251157
261265
271301
281313
291349
301361
311365
321377
331413
341521
351557
361665
371989
382097
392133
402241
412565
423537
433861
443969
454293
464401
474437
484449

[1,5,17,21,33,69,81,85,97,133,241,277,289,325,337,
 341,353,389,497,533,641,965,1073,1109,1121,1157,
 1265,1301,1313,1349,1361,1365,1377,1413,1521,1557,
 1665,1989,2097,2133,2241,2565,3537,3861,3969,4293,
 4401,4437,4449]