Primes prime(k) such that 2^k + prime(k) is also prime.

Terms

a(0) =3a(1) =5a(2) =7a(3) =11a(4) =37a(5) =41a(6) =43a(7) =83a(8) =269a(9) =577a(10) =1429a(11) =1433a(12) =2063a(13) =2549a(14) =8353a(15) =10639a(16) =15299a(17) =16927a(18) =18637a(19) =20201a(20) =24007a(21) =30097a(22) =34039a(23) =41777a(24) =146609a(25) =394249a(26) =839203a(27) =2955319