The number of solutions to phi(x) = rad(x)^n, where phi is the Euler totient function (A000010) and rad is the squarefree kernel function (A007947).
A328276
The number of solutions to phi(x) = rad(x)^n, where phi is the Euler totient function (A000010) and rad is the squarefree kernel function (A007947).
Terms
- a(0) =3a(1) =6a(2) =16a(3) =86a(4) =969a(5) =32180a(6) =3266653
External references
- oeis: A328276