OFFSET
0,1
REFERENCES
G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers. 3rd ed., Oxford Univ. Press, 1954, p. 68.
PROG
(PARI) a(n)=kronecker(n, 241) \\ Charles R Greathouse IV, Oct 07 2011
CROSSREFS
KEYWORD
sign,mult,easy
AUTHOR
STATUS
approved