Numbers k such that 12321*2^k + 1 is prime.

Terms

a(0) =4a(1) =24a(2) =29a(3) =47a(4) =61a(5) =63a(6) =67a(7) =69a(8) =87a(9) =101a(10) =129a(11) =143a(12) =153a(13) =249a(14) =252a(15) =333a(16) =408a(17) =561a(18) =616a(19) =732a(20) =929a(21) =1349a(22) =3467a(23) =6156a(24) =6919a(25) =9244a(26) =14413a(27) =17128a(28) =20059a(29) =20169