Numbers n such that 5^n - 8 is prime.

Terms

a(0) =2a(1) =4a(2) =10a(3) =14a(4) =88a(5) =112a(6) =140a(7) =764a(8) =3040a(9) =11096a(10) =24934a(11) =25616a(12) =54584a(13) =93400