a(n) = 1 + 4*A034780(n).

Terms

a(0) =29a(1) =53a(2) =101a(3) =109a(4) =149a(5) =173a(6) =181a(7) =197a(8) =229a(9) =269a(10) =293a(11) =317a(12) =337a(13) =349a(14) =373a(15) =389a(16) =461a(17) =509a(18) =557a(19) =569a(20) =641a(21) =653a(22) =677a(23) =701a(24) =709a(25) =773a(26) =797a(27) =821a(28) =829a(29) =853