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A287023
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Number of simple disconnected weakly perfect graphs on n vertices.
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2
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0, 1, 2, 5, 13, 43, 186, 1187, 13006, 270900, 11286208
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OFFSET
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1,3
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COMMENTS
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First differs from A287008 (number of simple disconnected graphs with equal chromatic and fractional chromatic number) at a(8).
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LINKS
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FORMULA
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CROSSREFS
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Cf. A198634 (number of not necessarily connected simple weakly perfect graphs).
Cf. A287009 (number of not connected simple weakly perfect graphs).
Cf. A287008 (number of simple disconnected graphs with equal chromatic and fractional chromatic number).
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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