Primes p such that (p-3)/2 is a prime of the form 6k-1.

Terms

a(0) =13a(1) =37a(2) =61a(3) =97a(4) =109a(5) =181a(6) =229a(7) =277a(8) =337a(9) =349a(10) =397a(11) =457a(12) =541a(13) =709a(14) =769a(15) =937a(16) =1009a(17) =1021a(18) =1117a(19) =1129a(20) =1201a(21) =1237a(22) =1297a(23) =1321a(24) =1489a(25) =1549a(26) =1597a(27) =1621a(28) =1657a(29) =1777