Increasing gaps between 2-pseudoprimes (lower end).

Terms

a(0) =341a(1) =645a(2) =3277a(3) =4681a(4) =5461a(5) =6601a(6) =11305a(7) =16705a(8) =19951a(9) =25761a(10) =35333a(11) =68101a(12) =75361a(13) =93961a(14) =137149a(15) =294409a(16) =367081a(17) =688213a(18) =950797a(19) =1207361a(20) =2035153a(21) =2537641a(22) =3235699a(23) =6386993a(24) =7040001a(25) =12096613a(26) =19781763a(27) =24356377a(28) =34944001a(29) =49664207