Primes p such that p + 8 is also prime.

Terms

a(0) =3a(1) =5a(2) =11a(3) =23a(4) =29a(5) =53a(6) =59a(7) =71a(8) =89a(9) =101a(10) =131a(11) =149a(12) =173a(13) =191a(14) =233a(15) =263a(16) =269a(17) =359a(18) =389a(19) =401a(20) =431a(21) =449a(22) =479a(23) =491a(24) =563a(25) =569a(26) =593a(27) =599a(28) =653a(29) =683