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A028850
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Number of composite unlabeled T_0 topologies (i.e., composite T_0 homeomorphism classes) on n points.
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0
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OFFSET
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2,3
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REFERENCES
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R. Kreminski, Graphs and matrices in the study of (finite) topological spaces, Missouri J. Mathematical Sciences, Volume 12 (Issue #2, Spring 2000).
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Richard M Kreminski (kremin(AT)boisdarc.tamu-commerce.edu)
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STATUS
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approved
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