Lucky primes k such that k+6 is also a lucky prime.

Terms

a(0) =7a(1) =31a(2) =37a(3) =67a(4) =73a(5) =613a(6) =991a(7) =1087a(8) =1117a(9) =2467a(10) =3301a(11) =3307a(12) =3607a(13) =4561a(14) =4987a(15) =4993a(16) =6367a(17) =6373a(18) =8263a(19) =8641a(20) =9643a(21) =10903a(22) =11827a(23) =11953a(24) =12373a(25) =12547a(26) =15187a(27) =15901a(28) =17047a(29) =18043