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A273486 as a simple table

na(n)
01
15
29
321
433
545
661
785
8129
9157
10189
11221
12281
13309
14357
15413
16489
17549
18613
19677
20769
21829
22909
23989
241097
251173
261269
271349
281473
291533
301645
311765
321905
332029
342157
352285
362441
372565
382709
392853
403025
413165
423325
433469
443657
453781
463957
474133
484337

[1,5,9,21,33,45,61,85,129,157,189,221,281,309,357,
 413,489,549,613,677,769,829,909,989,1097,1173,
 1269,1349,1473,1533,1645,1765,1905,2029,2157,2285,
 2441,2565,2709,2853,3025,3165,3325,3469,3657,3781,
 3957,4133,4337]