Primes p such that 7*p + 6 is also prime.

Terms

a(0) =5a(1) =11a(2) =13a(3) =19a(4) =23a(5) =31a(6) =41a(7) =43a(8) =59a(9) =61a(10) =71a(11) =83a(12) =103a(13) =109a(14) =113a(15) =149a(16) =151a(17) =173a(18) =179a(19) =199a(20) =211a(21) =223a(22) =229a(23) =233a(24) =241a(25) =263a(26) =269a(27) =281a(28) =283a(29) =353