Odd pseudoprimes to base 3; composite terms of A271116.

Terms

a(0) =91a(1) =121a(2) =671a(3) =703a(4) =949a(5) =1105a(6) =1541a(7) =1729a(8) =1891a(9) =2465a(10) =2665a(11) =2701a(12) =2821a(13) =3281a(14) =3367a(15) =3751a(16) =4961a(17) =5551a(18) =6601a(19) =7381a(20) =8401a(21) =8911a(22) =10585a(23) =11011a(24) =12403a(25) =14383a(26) =15203a(27) =15457a(28) =15841a(29) =16471