Numbers k such that 12*k - 5, 12*k - 1, 12*k + 1, and 12*k + 5 are primes.

Terms

a(0) =1a(1) =9a(2) =19a(3) =26a(4) =91a(5) =119a(6) =124a(7) =156a(8) =224a(9) =399a(10) =436a(11) =471a(12) =569a(13) =691a(14) =1141a(15) =1311a(16) =1339a(17) =1349a(18) =1449a(19) =1619a(20) =1729a(21) =1969a(22) =2009a(23) =2616a(24) =2779a(25) =2961a(26) =3001a(27) =3166a(28) =3369a(29) =3649