Numbers k such that 9^k - 8 is prime.

Terms

a(0) =2a(1) =4a(2) =7a(3) =10a(4) =11a(5) =31a(6) =127a(7) =136a(8) =215a(9) =953a(10) =1139a(11) =1799a(12) =3406a(13) =7633a(14) =13090a(15) =13171a(16) =13511a(17) =32593