Odd interprimes not divisible by 3.

Terms

a(0) =205a(1) =217a(2) =473a(3) =515a(4) =625a(5) =667a(6) =803a(7) =1003a(8) =1207a(9) =1243a(10) =1313a(11) =1465a(12) =1505a(13) =1517a(14) =1537a(15) =1681a(16) =1715a(17) =1795a(18) =1817a(19) =1895a(20) =2075a(21) =2105a(22) =2191a(23) =2303a(24) =2405a(25) =2453a(26) =2585a(27) =2627a(28) =2783a(29) =2933