Numbers m such that phi(m) = rad(m)^4, where phi is the Euler totient function (A000010) and rad is the squarefree kernel function (A007947).

A328275

Numbers m such that phi(m) = rad(m)^4, where phi is the Euler totient function (A000010) and rad is the squarefree kernel function (A007947).

Terms

    a(0) =1a(1) =32a(2) =3888a(3) =25000a(4) =2839714a(5) =3037500a(6) =10890936a(7) =120298932a(8) =402627500a(9) =534837384a(10) =7489147356a(11) =8508543750a(12) =48919241250a(13) =111945866022a(14) =336977358354a(15) =417841706250a(16) =553904623764

External references