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

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =8a(7) =10a(8) =14a(9) =22a(10) =38a(11) =42a(12) =71a(13) =118a(14) =128a(15) =159a(16) =179a(17) =214a(18) =484a(19) =951a(20) =1148a(21) =1162a(22) =1427a(23) =1532a(24) =1692a(25) =1861a(26) =2261a(27) =3760a(28) =4575a(29) =6974