2i + 1 such that A039508(i) = 3.

Terms

a(0) =11a(1) =17a(2) =33a(3) =49a(4) =51a(5) =61a(6) =97a(7) =99a(8) =103a(9) =127a(10) =147a(11) =149a(12) =151a(13) =153a(14) =163a(15) =173a(16) =183a(17) =199a(18) =223a(19) =241a(20) =251a(21) =291a(22) =297a(23) =309a(24) =311a(25) =317a(26) =331a(27) =347a(28) =349a(29) =373