a(n) is the greatest prime factor of prime(n)^prime(n) + 1.

A388657

a(n) is the greatest prime factor of prime(n)^prime(n) + 1.

Terms

    a(0) =5a(1) =7a(2) =521a(3) =911a(4) =58367a(5) =79301a(7) =870542161121a(8) =1522029233

External references