Numbers k such that 151*2^k+1 is prime.

Terms

a(0) =4a(1) =20a(2) =24a(3) =76a(4) =96a(5) =544a(6) =560a(7) =1124a(8) =1760a(9) =5056a(10) =6104a(11) =9680a(12) =31416a(13) =84640a(14) =281244a(15) =301056a(16) =585044a(17) =809716a(18) =858640a(19) =1016600a(20) =1376256a(21) =2584480