Odd numbers k such that d(k) does not divide phi(k).

Terms

a(0) =25a(1) =27a(2) =75a(3) =81a(4) =121a(5) =189a(6) =225a(7) =275a(8) =289a(9) =297a(10) =343a(11) =363a(12) =405a(13) =425a(14) =513a(15) =529a(16) =567a(17) =575a(18) =605a(19) =621a(20) =725a(21) =729a(22) =825a(23) =837a(24) =841a(25) =867a(26) =1025a(27) =1029a(28) =1053a(29) =1089