Prime triples: p; p+2 or p+4; p+6 all prime.

Terms

a(0) =5a(1) =7a(2) =11a(3) =13a(4) =17a(5) =37a(6) =41a(7) =67a(8) =97a(9) =101a(10) =103a(11) =107a(12) =191a(13) =193a(14) =223a(15) =227a(16) =277a(17) =307a(18) =311a(19) =347a(20) =457a(21) =461a(22) =613a(23) =641a(24) =821a(25) =823a(26) =853a(27) =857a(28) =877a(29) =881