Prime terms of A000328.

Terms

a(0) =5a(1) =13a(2) =29a(3) =113a(4) =149a(5) =197a(6) =317a(7) =613a(8) =709a(9) =797a(10) =1009a(11) =1129a(12) =1373a(13) =3001a(14) =3209a(15) =3853a(16) =4513a(17) =5261a(18) =6361a(19) =7213a(20) =11681a(21) =12853a(22) =15373a(23) =16729a(24) =19577a(25) =20593a(26) =21101a(27) =22133a(28) =25997a(29) =30757