Octavan primes: primes of the form p = x^8 + y^8.

Terms

a(0) =2a(1) =257a(2) =65537a(3) =2070241a(4) =100006561a(5) =435746497a(6) =815730977a(7) =832507937a(8) =1475795617a(9) =2579667841a(10) =4338014017a(11) =5110698017a(12) =6975822977a(13) =16983628577a(14) =17995718017a(15) =25605764801a(16) =32575757441a(17) =37822859617a(18) =37839636577a(19) =54875880097a(20) =54876264161a(21) =103910985281a(22) =110081078977