Numbers k such that phi(k) + 7 | sigma(k + 7).

A015786

Numbers k such that phi(k) + 7 | sigma(k + 7).

Terms

    a(0) =3a(1) =42a(2) =162a(3) =5478a(4) =491910a(5) =45504705a(6) =175271190a(7) =227418362790

External references