Numbers k such that 12^k + 5 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =21a(5) =26a(6) =31a(7) =50a(8) =55a(9) =69a(10) =392a(11) =661a(12) =12648a(13) =31038