Numbers k for which 14*k+1, 14*k+5, 14*k+11 and 14*k+13 are primes.

Terms

a(0) =9a(1) =72a(2) =114a(3) =237a(4) =252a(5) =279a(6) =342a(7) =357a(8) =417a(9) =534a(10) =687a(11) =864a(12) =1134a(13) =1284a(14) =1362a(15) =1644a(16) =2637a(17) =2754a(18) =2802a(19) =3144a(20) =3162a(21) =3849a(22) =5427a(23) =6342a(24) =6429a(25) =6774a(26) =7122a(27) =8082a(28) =8742a(29) =9114