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A205568
Number of 9-chromatic (i.e., chromatic number equals 9) simple graphs on n nodes.
3
0, 0, 0, 0, 0, 0, 0, 0, 1, 9, 222
OFFSET
1,10
LINKS
Eric Weisstein's World of Mathematics, n-Chromatic Graph
CROSSREFS
Column k=9 of A084268.
Sequence in context: A368704 A205578 A221439 * A264848 A033632 A110260
KEYWORD
nonn,more
AUTHOR
Michael Sollami, Jan 28 2012
STATUS
approved