OFFSET
3,1
LINKS
S. R. Finch, Average least nonresidues, December 4, 2013. [Cached copy, with permission of the author]
G. Martin and P. Pollack, The average least character non-residue and further variations on a theme of Erdos, J. London Math. Soc. 87 (2013) 22-42.
R. J. Mathar, Table of Dirichlet L-series and prime zeta modulo functions for small moduli, arXiv:1008.2547 [math.NT], 2010-2015.
EXAMPLE
a(6) = 5 since there is one nonprincipal Dirichlet character mod 6, namely A134667, whose fifth term is -1.
CROSSREFS
KEYWORD
nonn
AUTHOR
Steven Finch, Dec 02 2013
STATUS
approved