

A134997


Number of dihedral primes with n digits.


2



2, 1, 2, 2, 1, 14, 40, 52, 228, 482, 1592, 4758, 15810, 53202, 197429, 725196
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..16.
C. K. Caldwell, The Prime Glossary, Dihedral Prime
C. Rivera, Source


CROSSREFS

Cf. A038136, A048662, A134996.
Sequence in context: A166548 A181281 A171683 * A104605 A138516 A145740
Adjacent sequences: A134994 A134995 A134996 * A134998 A134999 A135000


KEYWORD

nonn,base,more


AUTHOR

Felice Russo


EXTENSIONS

a(1) corrected by Patrick Capelle, Feb 06 2008
a(11)a(16) from Hiroaki Yamanouchi, Sep 04 2014


STATUS

approved



