Primes p such that 4*p + 9 is also prime.

Terms

a(0) =2a(1) =5a(2) =7a(3) =11a(4) =13a(5) =23a(6) =37a(7) =41a(8) =43a(9) =47a(10) =67a(11) =71a(12) =97a(13) =103a(14) =113a(15) =137a(16) =151a(17) =163a(18) =167a(19) =173a(20) =181a(21) =191a(22) =197a(23) =211a(24) =233a(25) =251a(26) =263a(27) =271a(28) =277a(29) =293