

A093748


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


2



0, 0, 0, 3, 88, 1175, 12249, 119465, 1119585, 10347754, 94842255, 866077378, 7902711871, 72161896629, 659999185093, 6049187645033, 55574520617432, 511833282299754
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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), 20332060.


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



