OFFSET
1,4
LINKS
O. Favaron et al., Irredundance and domination in kings graphs, Discrete Math., 262 (2003), 131-147.
Matthew D. Kearse and Peter B. Gibbons, Computational Methods and New Results for Chessboard Problems, Australasian Journal of Combinatorics 23 (2001), 253-284.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Oct 16 2002
STATUS
approved