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A153892 as a simple table

na(n)
17
219
331
4131
51453
62351
742187
81981891
93206767
1013584083
11332484016063
1266165989928299
13146028309791690867
141619478772188347101
1547020662244482792763
16229030451631542624193448579
171569798068858809572115420691

[7,19,31,131,1453,2351,42187,1981891,3206767,
 13584083,332484016063,66165989928299,
 146028309791690867,1619478772188347101,
 47020662244482792763,229030451631542624193448579,
 1569798068858809572115420691]