Odd numbers from A039500.

Terms

a(0) =1a(1) =3a(2) =11a(3) =15a(4) =29a(5) =39a(6) =43a(7) =53a(8) =57a(9) =59a(10) =65a(11) =69a(12) =71a(13) =77a(14) =79a(15) =85a(16) =87a(17) =95a(18) =97a(19) =101a(20) =103a(21) =105a(22) =113a(23) =115a(24) =127a(25) =129a(26) =135a(27) =137a(28) =141a(29) =145