Numbers k such that 12^k + 7 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =5a(4) =6a(5) =20a(6) =21a(7) =22a(8) =28a(9) =58a(10) =120a(11) =144a(12) =1100a(13) =1926a(14) =2892a(15) =4773a(16) =5214a(17) =17241a(18) =18980a(19) =31265