A028847 - OEIS

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A028847

Number of composite labeled topologies on n points.

0, 0, 35, 0, 3767, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`2,3`
	REFERENCES	`R. Kreminski, "Graphs and matrices in the study of (finite) topological spaces", Missouri J. Mathematical Sciences, Volume 12 (Issue #2, Spring 2000).`
	LINKS	`Table of n, a(n) for n=2..7.` `Missouri J. Mathematical Sciences (New web address)`
	CROSSREFS	`Sequence in context: A174593 A104785 A225313 * A176199 A059023 A327004` `Adjacent sequences: A028844 A028845 A028846 * A028848 A028849 A028850`
	KEYWORD	`nonn`
	AUTHOR	`Richard M Kreminski (kremin(AT)boisdarc.tamu-commerce.edu)`
	STATUS	`approved`

Last modified April 14 03:53 EDT 2021. Contains 342941 sequences. (Running on oeis4.)