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A032388 as a simple table

na(n)
13
27
319
423
595
6287
7483
8559
9655
10667
111639
129399
1339639
1463883
1571575
16164319
17401947
18614995

[3,7,19,23,95,287,483,559,655,667,1639,9399,39639,
 63883,71575,164319,401947,614995]