Numbers n such that sigma(n) = 11*phi(n) (where sigma=A000203, phi=A000010).

Terms

a(0) =2580a(1) =16770a(2) =18630a(3) =28896a(4) =35970a(5) =61404a(6) =66024a(7) =147576a(8) =163944a(9) =215124a(10) =224010a(11) =296184a(12) =399126a(13) =408672a(14) =443394a(15) =464340a(16) =476010a(17) =574308a(18) =856086a(19) =862752a(20) =868428a(21) =931224a(22) =957348a(23) =1004910a(24) =1110186a(25) =1496610a(26) =1721720a(27) =1723290a(28) =1833348a(29) =1971288