OFFSET
0,4
LINKS
N. Heninger, E. M. Rains and N. J. A. Sloane, On the Integrality of n-th Roots of Generating Functions, J. Combinatorial Theory, Series A, 113 (2006), 1732-1745.
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane and Nadia Heninger, Aug 18 2005
STATUS
approved