Numbers k such that 135*2^k+1 is prime.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =10a(5) =15a(6) =18a(7) =20a(8) =30a(9) =31a(10) =35a(11) =38a(12) =39a(13) =51a(14) =85a(15) =90a(16) =106a(17) =108a(18) =202a(19) =238a(20) =253a(21) =282a(22) =330a(23) =361a(24) =452a(25) =459a(26) =646a(27) =895a(28) =922a(29) =1201