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A263335 as a simple table

na(n)
17
219
357
4409
52047
610747
770423
8427507
92610075
1016811257
11106973797
12685280521
134472908837
1429110775719
15191077482297
161268190506821
178394627812935
1856013012538219
19376887163063705
202528646896288971

[7,19,57,409,2047,10747,70423,427507,2610075,
 16811257,106973797,685280521,4472908837,
 29110775719,191077482297,1268190506821,
 8394627812935,56013012538219,376887163063705,
 2528646896288971]