

A091128


Number of primes of the form 8k+5 less than 10^n.


4



1, 6, 43, 314, 2399, 19623, 166204, 1440534, 12712271, 113764516, 1029517296, 9401972490, 86516425996, 801235712049
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

Computed by T. D. Noe, Dec 19, 2003.


LINKS

Table of n, a(n) for n=1..14.
Eric Weisstein's World of Mathematics, Modular Prime Counting Function
Distribution of Primes [From Bernhard Helmes (pi(AT)devalco.de), Apr 21 2010]


CROSSREFS

Cf. A091126, A091127, A091129.
Sequence in context: A014989 A015552 A091129 * A025594 A098665 A153397
Adjacent sequences: A091125 A091126 A091127 * A091129 A091130 A091131


KEYWORD

nonn


AUTHOR

Eric W. Weisstein, Dec 19, 2003


EXTENSIONS

a(10) from Robert G. Wilson v, Dec 22 2003
More terms from a(11)  a(14) Bernhard Helmes (pi(AT)devalco.de), Apr 21 2010


STATUS

approved



