Numbers n such that n | Sigma(n) + d(n) + Phi(n).

A056012

Numbers n such that n | Sigma(n) + d(n) + Phi(n).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =6a(4) =90a(5) =408a(6) =5856a(7) =2200352a(8) =11524640a(9) =90200997888

External references