Numbers k such that d(k) does not divide phi(k).

Terms

a(0) =2a(1) =4a(2) =6a(3) =12a(4) =14a(5) =16a(6) =20a(7) =22a(8) =25a(9) =27a(10) =32a(11) =36a(12) =38a(13) =42a(14) =44a(15) =46a(16) =48a(17) =50a(18) =54a(19) =60a(20) =62a(21) =64a(22) =66a(23) =68a(24) =75a(25) =80a(26) =81a(27) =86a(28) =92a(29) =94