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A001771 as a simple table

na(n)
11
25
39
417
521
629
745
8177
918381
1022529
1124557
1226109
1334857
1441957
1567421
1670209
17169085
18173489
19177977
20363929
21372897

[1,5,9,17,21,29,45,177,18381,22529,24557,26109,
 34857,41957,67421,70209,169085,173489,177977,
 363929,372897]