Numbers k such that 245*2^k+1 is prime.

Terms

a(0) =1a(1) =5a(2) =9a(3) =25a(4) =69a(5) =73a(6) =99a(7) =153a(8) =163a(9) =223a(10) =273a(11) =279a(12) =331a(13) =439a(14) =445a(15) =595a(16) =601a(17) =1189a(18) =2311a(19) =3523a(20) =3773a(21) =5369a(22) =6349a(23) =8743a(24) =14083a(25) =25225a(26) =25371a(27) =37773a(28) =60615a(29) =123471