a(n) is the least natural k which is a multiple of prime(n) such that for some m >= 0, phi(k) = rad(k)^m, where phi(k) = A000010(k) and rad(k) = A007947(k).
A337775
a(n) is the least natural k which is a multiple of prime(n) such that for some m >= 0, phi(k) = rad(k)^m, where phi(k) = A000010(k) and rad(k) = A007947(k).
Terms
- a(0) =2a(1) =18a(2) =250a(3) =6174a(4) =3660250a(5) =1542294a(6) =2839714a(7) =41154a(11) =33734898a(13) =21107677374
External references
- oeis: A337775