Numbers k such that 477*2^k+1 is prime.

Terms

a(0) =6a(1) =7a(2) =14a(3) =15a(4) =18a(5) =27a(6) =39a(7) =42a(8) =50a(9) =54a(10) =71a(11) =88a(12) =99a(13) =102a(14) =104a(15) =138a(16) =168a(17) =275a(18) =306a(19) =615a(20) =1274a(21) =1375a(22) =1824a(23) =1890a(24) =3055a(25) =4379a(26) =5167a(27) =5538a(28) =11775a(29) =11895