Numbers k such that Euler phi(k) / Carmichael lambda(k) = 18.

Terms

a(0) =513a(1) =703a(2) =999a(3) =1026a(4) =1387a(5) =1406a(6) =1539a(7) =1971a(8) =1998a(9) =2071a(10) =2413a(11) =2774a(12) =2943a(13) =2997a(14) =3078a(15) =3097a(16) =3429a(17) =3439a(18) =3781a(19) =3942a(20) =4142a(21) =4401a(22) =4617a(23) =4699a(24) =4826a(25) =4887a(26) =5149a(27) =5373a(28) =5833a(29) =5886