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A099438
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Number of simple connected class-2 graphs on n nodes.
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2
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OFFSET
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1,5
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LINKS
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FORMULA
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CROSSREFS
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Cf. A001349 (number of connected graphs on n nodes).
Cf. A099437 (number of simple class-2 graphs on n nodes).
Cf. A099436 (number of connected class-1 graphs on n nodes).
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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