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A001259 as a simple table

na(n)
13
25
37
417
519
637
797
8113
9257
10401
11487
12631
13971
141297
151801
1619457
1722051
1828817
1965537
20157303
21160001

[3,5,7,17,19,37,97,113,257,401,487,631,971,1297,
 1801,19457,22051,28817,65537,157303,160001]