Primes prime(k) such that (prime(k)*prime(k+1)+1)/2 is prime.

Terms

a(0) =467a(1) =2179a(2) =2777a(3) =4877a(4) =6151a(5) =6173a(6) =6871a(7) =7907a(8) =7937a(9) =8329a(10) =9791a(11) =11261a(12) =11287a(13) =12119a(14) =12227a(15) =12941a(16) =13009a(17) =14657a(18) =14831a(19) =15061a(20) =15607a(21) =16127a(22) =16193a(23) =16453a(24) =16787a(25) =16831a(26) =17989a(27) =18701a(28) =18803a(29) =18947