%I

%S 2,11,31,97,12251,564163

%N Primes p such that pi(2^k) = p, for some k > 1.

%C The next term is greater than pi(2^86).

%C The prime terms in A007053. - _Jinyuan Wang_, Aug 26 2019

%o (PARI) lista(nn) = {for (n=1, nn, if (isprime(k=primepi(2^n)), print1(k, ", ")););} \\ _Michel Marcus_, Aug 26 2019

%Y Cf. A007053.

%K nonn,more

%O 1,1

%A _Cino Hilliard_, Oct 27 2003