Primes equal to a product of twin primes minus 1 divided by 2.

Terms

a(0) =7a(1) =17a(2) =71a(3) =449a(4) =881a(5) =2591a(6) =9521a(7) =39761a(8) =106721a(9) =179999a(10) =206081a(11) =342791a(12) =388961a(13) =596231a(14) =847601a(15) =1292831a(16) =2268449a(17) =2571911a(18) =2836961a(19) =3612671a(20) =6223391a(21) =6329681a(22) =6415361a(23) =8520191a(24) =8946449a(25) =9409121a(26) =10342151a(27) =12550049a(28) =16485281a(29) =18800711