Numbers n such that sigma(phi(n)) = sum of anti-divisors of n.

A074835

Numbers n such that sigma(phi(n)) = sum of anti-divisors of n.

Terms

    a(0) =4a(1) =59a(2) =6186a(3) =12846a(4) =18003a(5) =19677a(6) =52364a(7) =293565a(8) =984636a(9) =1894557a(10) =1965537a(11) =9946704a(12) =31849014a(13) =138419397a(14) =250780145a(15) =1650149334

External references