Numbers n such that j(n)*phi(n) = usigma(n), where j(n) = A033831, usigma(n) = sum of unitary divisors of n (A034448).

A033857

Numbers n such that j(n)*phi(n) = usigma(n), where j(n) = A033831, usigma(n) = sum of unitary divisors of n (A034448).

Terms

    a(0) =35a(1) =44a(2) =56a(3) =105a(4) =198a(5) =418a(6) =1254

External references