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%I #25 Sep 01 2019 02:32:09
%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