Smallest k such that 4^(4^n) - k is prime.

A364452

Smallest k such that 4^(4^n) - k is prime.

Terms

    a(0) =1a(1) =5a(2) =5a(3) =159a(4) =569a(5) =1557a(6) =2439a(7) =25353a(8) =24317a(9) =164073

External references