Numbers k such that 309*2^k+1 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =9a(5) =21a(6) =51a(7) =53a(8) =57a(9) =67a(10) =69a(11) =106a(12) =143a(13) =163a(14) =193a(15) =194a(16) =231a(17) =338a(18) =343a(19) =1197a(20) =1314a(21) =2178a(22) =2266a(23) =3401a(24) =3422a(25) =4751a(26) =5914a(27) =6097a(28) =11403a(29) =16519