A028852 - OEIS

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A028852

Number of composite unlabeled connected T_0 topologies (i.e. composite T_0 connected homeomorphism classes) on n points.

0, 0, 1, 0, 3, 0, 10, 6, 44, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,5`
	REFERENCES	`R. Kreminski, Graphs and matrices in the study of (finite) topological spaces, Missouri J. Mathematical Sciences, Volume 12 (Issue #2, Spring 2000).`
	LINKS	`Missouri J. Mathematical Sciences (New web address)`
	CROSSREFS	`Sequence in context: A161678 A081658 A119957 * A095200 A090460 A071983` `Adjacent sequences: A028849 A028850 A028851 * A028853 A028854 A028855`
	KEYWORD	`nonn`
	AUTHOR	`Richard M Kreminski (kremin(AT)boisdarc.tamu-commerce.edu)`

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Last modified February 15 21:56 EST 2012. Contains 205860 sequences.