Pseudoprimes to base 9.

Terms

a(0) =4a(1) =8a(2) =28a(3) =52a(4) =91a(5) =121a(6) =205a(7) =286a(8) =364a(9) =511a(10) =532a(11) =616a(12) =671a(13) =697a(14) =703a(15) =946a(16) =949a(17) =1036a(18) =1105a(19) =1288a(20) =1387a(21) =1541a(22) =1729a(23) =1891a(24) =2465a(25) =2501a(26) =2665a(27) =2701a(28) =2806a(29) =2821