Pseudoprimes to both base 2 and base 3, i.e., intersection of A001567 and A005935.

Terms

a(0) =1105a(1) =1729a(2) =2465a(3) =2701a(4) =2821a(5) =6601a(6) =8911a(7) =10585a(8) =15841a(9) =18721a(10) =29341a(11) =31621a(12) =41041a(13) =46657a(14) =49141a(15) =52633a(16) =63973a(17) =75361a(18) =83333a(19) =83665a(20) =88561a(21) =90751a(22) =93961a(23) =101101a(24) =104653a(25) =107185a(26) =115921a(27) =126217a(28) =162401a(29) =172081