a(n) is the least positive integer k which is a multiple of prime(n) such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).

A355045

a(n) is the least positive integer k which is a multiple of prime(n) such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).

Terms

    a(0) =18a(1) =18a(2) =11250a(3) =57177414a(4) =8696754a(6) =501126a(8) =23981814018a(9) =230750426250a(15) =5018345916

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