Special safe primes (from A005385) such that the next prime is also a safe prime.

Terms

a(0) =5a(1) =7a(2) =467a(3) =1307a(4) =2447a(5) =5087a(6) =5927a(7) =12527a(8) =18947a(9) =44687a(10) =55079a(11) =78467a(12) =79943a(13) =83207a(14) =93383a(15) =103007a(16) =105143a(17) =111443a(18) =118787a(19) =128879a(20) =143687a(21) =164987a(22) =196907a(23) =204587a(24) =207227a(25) =208787a(26) =229487a(27) =232823a(28) =236507a(29) =257627