Primes p = prime(k) such that k*p - 1 is also a prime.

Terms

a(0) =3a(1) =19a(2) =37a(3) =43a(4) =61a(5) =113a(6) =251a(7) =317a(8) =359a(9) =409a(10) =463a(11) =491a(12) =557a(13) =601a(14) =683a(15) =827a(16) =863a(17) =941a(18) =1061a(19) =1097a(20) =1109a(21) =1213a(22) =1283a(23) =1291a(24) =1399a(25) =1423a(26) =1481a(27) =1583a(28) =1657a(29) =1693