Primes p such that p-1 divides 2^p-2.

Terms

a(0) =2a(1) =3a(2) =7a(3) =19a(4) =43a(5) =127a(6) =163a(7) =379a(8) =487a(9) =883a(10) =1459a(11) =2647a(12) =3079a(13) =3943a(14) =5419a(15) =9199a(16) =11827a(17) =14407a(18) =16759a(19) =18523a(20) =24967a(21) =26407a(22) =37339a(23) =39367a(24) =42463a(25) =71443a(26) =77659a(27) =95923a(28) =99079a(29) =113779