Numbers k such that (9^k + 4^k)/13 is prime.

Terms

a(0) =3a(1) =5a(2) =7a(3) =11a(4) =17a(5) =19a(6) =41a(7) =53a(8) =109a(9) =167a(10) =2207a(11) =3623a(12) =5059a(13) =5471a(14) =7949a(15) =21211a(16) =32993a(17) =60251