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A033958 as a simple table

na(n)
11
23
37
49
525
627
773
897
9129
10171
11231
12313
13327
14703
15871
161161
172463
182919
193711
206171
2110971
2213255
2317647
2423529
2526623
2634239
2735655
2852527
2977031
30106239
31142587
32156159
33216367
34230631
35410011
36511935
37626331
38837799
391117065
401501353
411723519
422298025
433064033

[1,3,7,9,25,27,73,97,129,171,231,313,327,703,871,
 1161,2463,2919,3711,6171,10971,13255,17647,23529,
 26623,34239,35655,52527,77031,106239,142587,
 156159,216367,230631,410011,511935,626331,837799,
 1117065,1501353,1723519,2298025,3064033]