a(n) = 1 + 2*A034784(n).

Terms

a(0) =7a(1) =11a(2) =17a(3) =19a(4) =23a(5) =29a(6) =31a(7) =41a(8) =43a(9) =47a(10) =53a(11) =59a(12) =67a(13) =71a(14) =79a(15) =83a(16) =89a(17) =97a(18) =101a(19) =103a(20) =107a(21) =109a(22) =113a(23) =127a(24) =131a(25) =137a(26) =139a(27) =149a(28) =151a(29) =163