Pseudoprimes to bases 3 and 7.

Terms

a(0) =703a(1) =1105a(2) =2465a(3) =10585a(4) =18721a(5) =19345a(6) =29341a(7) =38503a(8) =46657a(9) =50881a(10) =75361a(11) =76627a(12) =88831a(13) =104653a(14) =115921a(15) =146611a(16) =162401a(17) =188191a(18) =213265a(19) =226801a(20) =252601a(21) =278545a(22) =286903a(23) =294409a(24) =314821a(25) =334153a(26) =340561a(27) =359341a(28) =385003a(29) =385201