Carmichael numbers k for which A053575(k) [the odd part of phi] does not divide k-1.

Terms

a(0) =1729a(1) =2821a(2) =15841a(3) =29341a(4) =41041a(5) =52633a(6) =63973a(7) =75361a(8) =101101a(9) =115921a(10) =126217a(11) =172081a(12) =188461a(13) =252601a(14) =278545a(15) =294409a(16) =314821a(17) =334153a(18) =340561a(19) =399001a(20) =488881a(21) =512461a(22) =530881a(23) =552721a(24) =656601a(25) =658801a(26) =670033a(27) =748657a(28) =825265a(29) =838201