A087933 Primes p such that pi(2^k) = p, for some k > 1.

2, 11, 31, 97, 12251, 564163

Offset

1,1

Comments

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

The prime terms in A007053. - Jinyuan Wang, Aug 26 2019

Links

Table of n, a(n) for n=1..6.

Prog

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

Crossrefs

Cf. A007053.

Sequence in context: A106847 A092761 A296733 * A190259 A190261 A000755

Adjacent sequences: A087930 A087931 A087932 * A087934 A087935 A087936

Keyword

nonn,more

Author

Cino Hilliard, Oct 27 2003

Status

approved