Numbers of the form (4^p + 2^p + 1)/7, where p > 3 is prime.

A143012

Numbers of the form (4^p + 2^p + 1)/7, where p > 3 is prime.

Terms

    a(0) =151a(1) =2359a(2) =599479a(3) =9588151a(4) =2454285751a(5) =39268347319

External references