a(n) = smallest k satisfying the equation phi(k) = phi(k-1) + phi(k-2) and having just n prime factors.

A065604

a(n) = smallest k satisfying the equation phi(k) = phi(k-1) + phi(k-2) and having just n prime factors.

Terms

    a(0) =3a(1) =1037a(2) =619697a(3) =218688017a(4) =32617225577

External references