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

Terms

a(0) =9a(1) =18a(2) =24a(3) =408a(4) =7684a(5) =10848a(6) =14528a(7) =46272a(8) =533776a(9) =774912a(10) =201142272a(11) =1410521344a(12) =3220488192a(13) =4469373184a(14) =6505814272a(15) =27945013504