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

Terms

a(0) =2a(1) =5a(2) =11a(3) =17a(4) =29a(5) =31a(6) =37a(7) =61a(8) =67a(9) =71a(10) =89a(11) =101a(12) =109a(13) =127a(14) =137a(15) =167a(16) =181a(17) =191a(18) =199a(19) =229a(20) =241a(21) =257a(22) =269a(23) =277a(24) =281a(25) =311a(26) =331a(27) =337a(28) =347a(29) =359