A093748 Number of prime pairs below 10^n having a difference of 26.

0, 0, 0, 3, 88, 1175, 12249, 119465, 1119585, 10347754, 94842255, 866077378, 7902711871, 72161896629, 659999185093, 6049187645033, 55574520617432, 511833282299754

Offset

1,4

Links

Table of n, a(n) for n=1..18.

Siegfried "Zig" Herzog, Frequency of Occurrence of Prime Gaps

T. Oliveira e Silva, S. Herzog, and S. Pardi, Empirical verification of the even Goldbach conjecture and computation of prime gaps up to 4.10^18, Math. Comp., 83 (2014), 2033-2060.

Example

a(4) = 3 because there are 3 prime gaps of 26 below 10^n.

Crossrefs

Cf. A007508, A093747, A093749.

Sequence in context: A172723 A331645 A037112 * A156737 A070018 A054682

Adjacent sequences: A093745 A093746 A093747 * A093749 A093750 A093751

Keyword

nonn,more

Author

Enoch Haga, Apr 15 2004

Extensions

a(10)-a(13) from Washington Bomfim, Jun 22 2012

a(14)-a(18) from S. Herzog's website added by Giovanni Resta, Aug 14 2018

Status

approved