Numbers n such that sigma(n) - phi(n) = pi(n).

A067788

Numbers n such that sigma(n) - phi(n) = pi(n).

Terms

    a(0) =1a(1) =3a(2) =49a(3) =437a(4) =11509a(5) =3029573a(6) =15714799a(7) =15715171a(8) =312616663a(9) =45764089927

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