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A156809
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Number of nonisomorphic circle graphs of order n
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2
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1, 2, 4, 11, 34, 154, 978, 9497, 127954, 2165291, 42609994, 937233306, 22576188846
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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CROSSREFS
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KEYWORD
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hard,nonn
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AUTHOR
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Lars Eirik Danielsen (larsed(AT)ii.uib.no), Feb 16 2009
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EXTENSIONS
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STATUS
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approved
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