Primes p with p + 2, p + 6 and prime(p) + 6 all prime.

Terms

a(0) =5a(1) =11a(2) =107a(3) =227a(4) =311a(5) =347a(6) =821a(7) =857a(8) =1091a(9) =1607a(10) =1997a(11) =2657a(12) =3527a(13) =4931a(14) =5231a(15) =8087a(16) =8231a(17) =9431a(18) =10331a(19) =11171a(20) =12917a(21) =13691a(22) =13877a(23) =21377a(24) =22271a(25) =24917a(26) =27737a(27) =29567a(28) =32057a(29) =33347