Pseudoprimes to bases 2,5 and 7.

Terms

a(0) =561a(1) =29341a(2) =46657a(3) =75361a(4) =115921a(5) =162401a(6) =252601a(7) =294409a(8) =314821a(9) =334153a(10) =340561a(11) =399001a(12) =410041a(13) =488881a(14) =512461a(15) =530881a(16) =552721a(17) =656601a(18) =658801a(19) =710533a(20) =721801a(21) =852841a(22) =1024651a(23) =1141141a(24) =1152271a(25) =1168513a(26) =1193221a(27) =1461241a(28) =1569457a(29) =1615681