Numbers k such that 3^k - 16 is prime.

Terms

a(0) =3a(1) =5a(2) =11a(3) =15a(4) =51a(5) =69a(6) =99a(7) =227a(8) =381a(9) =537a(10) =9135a(11) =9737a(12) =58437a(13) =105567a(14) =121779a(15) =123645