

A093978


Number of prime pairs below 10^n having a difference of 48.


2



0, 0, 0, 0, 3, 196, 3784, 49824, 577247, 6250795, 64725830, 651790197, 6443528078, 62906425823, 608875308314, 5858471079330, 56139508762734, 536478118777779
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,5


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(5) = 3 because there are 3 prime gaps of 48 below 10^5.


CROSSREFS

Cf. A007508, A093977, A093979.
Sequence in context: A230171 A332957 A203749 * A101382 A000724 A309749
Adjacent sequences: A093975 A093976 A093977 * A093979 A093980 A093981


KEYWORD

nonn,more


AUTHOR

Enoch Haga, Apr 24 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



