Numbers k such that 471*2^k+1 is prime.

Terms

a(0) =3a(1) =4a(2) =5a(3) =7a(4) =8a(5) =11a(6) =17a(7) =20a(8) =36a(9) =40a(10) =43a(11) =47a(12) =53a(13) =71a(14) =107a(15) =123a(16) =225a(17) =345a(18) =368a(19) =460a(20) =468a(21) =625a(22) =652a(23) =807a(24) =1036a(25) =1107a(26) =1285a(27) =1531a(28) =1613a(29) =1820