Primes p such that p+6, p-6, 2*p+3 and 2*p-3 are prime.

Terms

a(0) =13a(1) =17a(2) =53a(3) =67a(4) =157a(5) =563a(6) =613a(7) =647a(8) =1187a(9) =1453a(10) =1663a(11) =4007a(12) =4133a(13) =5443a(14) =5743a(15) =6073a(16) =6863a(17) =7823a(18) =8747a(19) =11833a(20) =12113a(21) =12583a(22) =12653a(23) =15467a(24) =21997a(25) =23747a(26) =25463a(27) =25673a(28) =26183a(29) =41017