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A076324
Number of connected 5-colorable (i.e., chromatic number <= 5) simple graphs on n nodes.
7
1, 1, 2, 6, 21, 111, 847, 11036, 259022, 11599009, 991757695
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, k-Colorable Graph
FORMULA
Inverse Euler transform of A076317. - 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