Primes p such that (p^256 + 1)/2 is prime.

Terms

a(0) =331a(1) =1783a(2) =2591a(3) =2791a(4) =7127a(5) =8443a(6) =9007a(7) =9859a(8) =10133a(9) =10883a(10) =10889a(11) =11621a(12) =12101a(13) =13183a(14) =15391a(15) =17737a(16) =19309a(17) =19571a(18) =21863a(19) =24043a(20) =24203a(21) =31159a(22) =32717a(23) =33377a(24) =34267a(25) =35023a(26) =35531a(27) =38177a(28) =39929a(29) =42397