Numbers k such that sigma(k) = psi(k) + phi(k) + omega(k).

A390049

Numbers k such that sigma(k) = psi(k) + phi(k) + omega(k).

Terms

    a(0) =40a(1) =208a(2) =928a(3) =3904a(4) =260608a(5) =1045504a(6) =16764928a(7) =268386304

External references