Numbers k such that 4^k + 2^k - 1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =10a(6) =16a(7) =24a(8) =26a(9) =35a(10) =52a(11) =55a(12) =95a(13) =144a(14) =379a(15) =484a(16) =939a(17) =1284a(18) =1300a(19) =2651a(20) =3644a(21) =3979a(22) =7179a(23) =8304a(24) =14840a(25) =32040a(26) =38906a(27) =47759a(28) =51371a(29) =52484