OFFSET
0,4
COMMENTS
Adjacent vertices may have the same color.
EXAMPLE
a(1) = 1 since the only cubic graph on 4 vertices is the complete graph. The bicolored graphs are indistinguishable whichever 2 vertices are colored in the first color.
CROSSREFS
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Mar 11 2023
STATUS
approved