Primes p such that both 2p-1 and 2p^2-2p+1 are prime.

Terms

a(0) =2a(1) =3a(2) =31a(3) =331a(4) =1171a(5) =2011a(6) =2281a(7) =3181a(8) =4621a(9) =4861a(10) =6151a(11) =6211a(12) =6961a(13) =7951a(14) =8521a(15) =9151a(16) =11251a(17) =12211a(18) =13411a(19) =15661a(20) =17491a(21) =18121a(22) =19141a(23) =20641a(24) =22531a(25) =23071a(26) =23581a(27) =24631a(28) =25411a(29) =26041