Primes p such that p+4 and p+12 are also prime.

Terms

a(0) =7a(1) =19a(2) =67a(3) =97a(4) =127a(5) =229a(6) =397a(7) =487a(8) =739a(9) =757a(10) =907a(11) =1009a(12) =1279a(13) =1447a(14) =1567a(15) =1597a(16) =1609a(17) =1867a(18) =1999a(19) =2239a(20) =2269a(21) =2377a(22) =2539a(23) =2659a(24) =2707a(25) =3037a(26) =3217a(27) =3319a(28) =3457a(29) =3529