Prime(p)-4 for primes p such that prime(p) - 4 is prime.

Terms

a(0) =7a(1) =13a(2) =37a(3) =79a(4) =349a(5) =397a(6) =457a(7) =613a(8) =769a(9) =1213a(10) =1429a(11) =1783a(12) =2347a(13) =2377a(14) =2473a(15) =3907a(16) =4129a(17) =4513a(18) =4783a(19) =5437a(20) =5647a(21) =7477a(22) =7603a(23) =7879a(24) =8803a(25) =9829a(26) =10429a(27) =10453a(28) =10627a(29) =11443