Largest prime < 10*a(n-1), a(1)=17.

A124299

Largest prime < 10*a(n-1), a(1)=17.

Terms

    a(0) =17a(1) =167a(2) =1669a(3) =16673a(4) =166723a(5) =1667227a(6) =16672267a(7) =166722667a(8) =1667226667a(9) =16672266659a(10) =166722666527

External references