Numbers k such that 129*2^k+1 is prime.

Terms

a(0) =3a(1) =5a(2) =21a(3) =27a(4) =59a(5) =75a(6) =111a(7) =287a(8) =414a(9) =786a(10) =966a(11) =1071a(12) =2433a(13) =2817a(14) =3165a(15) =4958a(16) =5895a(17) =12450a(18) =39399a(19) =50019a(20) =57386a(21) =72599a(22) =75866a(23) =82026a(24) =112497a(25) =268271a(26) =284975a(27) =478538a(28) =564990a(29) =630843