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

Terms

a(0) =1a(1) =5a(2) =9a(3) =49a(4) =61a(5) =81a(6) =149a(7) =413a(8) =485a(9) =661a(10) =709a(11) =1337a(12) =2885a(13) =2925a(14) =3013a(15) =7213a(16) =9669a(17) =10245