OFFSET
1,4
COMMENTS
See Table 1, column 2 of the paper by E. D. Demaine et al. for details.
LINKS
E. D. Demaine, M. L. Demaine, P. Taslakian and G. T. Toussaint, Sand drawings and Gaussian graphs, Journal of Mathematics and the Arts, 1 (2007), 125-133.
EXAMPLE
The number of Sona graphs with nine faces is 534.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Parthasarathy Nambi, Jan 22 2010
STATUS
approved