Numbers k such that 411*2^k+1 is prime.

Terms

a(0) =1a(1) =4a(2) =7a(3) =19a(4) =37a(5) =55a(6) =72a(7) =79a(8) =81a(9) =136a(10) =139a(11) =955a(12) =976a(13) =979a(14) =1537a(15) =1579a(16) =2292a(17) =3277a(18) =4644a(19) =6007a(20) =6391a(21) =6805a(22) =17959a(23) =25999a(24) =58327a(25) =60919a(26) =112957a(27) =117781a(28) =130204a(29) =181176