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A164100
Number of planar graphs with n nodes and chromatic number 3.
0
1, 3, 16, 82, 524, 4372, 47057, 618235, 9289491
OFFSET
3,2
CROSSREFS
Sequence in context: A020871 A037780 A163012 * A041707 A037584 A030983
KEYWORD
nonn
AUTHOR
Keith Briggs, Aug 10 2009
EXTENSIONS
Added term 9289491 (for n=11), Keith Briggs, Aug 25 2009
STATUS
approved