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A129584
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Number of unlabeled bi-point-determining graphs: graphs in which no two vertices have the same neighborhoods or the same augmented neighborhoods (the augmented neighborhood of a vertex is the neighborhood of the vertex union the vertex itself).
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6
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OFFSET
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1,5
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COMMENTS
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This is the unlabeled case of bi-point-determining graphs, which are basically graphs that are both point-determining (no two vertices have the same neighborhoods) and co-point-determining (graphs whose complements are point-determining)
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LINKS
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CROSSREFS
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KEYWORD
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nice,nonn,more
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AUTHOR
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Ji Li (vieplivee(AT)hotmail.com), May 07 2007
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STATUS
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approved
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