login
A076326
Number of connected 7-colorable (i.e., chromatic number <= 7) simple graphs on n nodes.
7
1, 1, 2, 6, 21, 112, 853, 11116, 261072, 11716406, 1006692303
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, n-Colorable Graph
FORMULA
Inverse Euler transform of A076319. - Andrew Howroyd, Dec 02 2018
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Oct 06 2002
EXTENSIONS
a(10)-a(11) from Andrew Howroyd, Dec 02 2018
STATUS
approved