Numbers k such that 3^(2*k-1)+3^k+1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =9a(6) =10a(7) =40a(8) =82a(9) =159a(10) =177a(11) =525a(12) =880a(13) =2577a(14) =3771a(15) =11872