Primes p such that x^8 = 2 has a solution mod p, but x^(8^2) = 2 has no solution mod p.

Terms

a(0) =257a(1) =1217a(2) =1249a(3) =1553a(4) =1777a(5) =2113a(6) =2657a(7) =2833a(8) =4049a(9) =4273a(10) =4481a(11) =4993a(12) =5297a(13) =6449a(14) =6481a(15) =6689a(16) =7121a(17) =7489a(18) =8081a(19) =8609a(20) =9137a(21) =9281a(22) =9649a(23) =10177a(24) =10337a(25) =10369a(26) =10433a(27) =11329a(28) =11617a(29) =11633