OFFSET
1,2
REFERENCES
F. Lemmermeyer, Reciprocity Laws From Euler to Eisenstein, Springer-Verlag, 2000, p. 59.
LINKS
Phil Moore, Tony Reix and others, Online Discussion
EXAMPLE
p=7: 127 = 10^2 + 3*3^2, so a(3) = 3.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Feb 05 2001
EXTENSIONS
More terms from Joshua Zucker, May 23 2006
STATUS
approved