id:A028850 - OEIS Search Results

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

+0
1

0, 0, 3, 0, 10, 0, 30, 15, 126, 0 (list; graph; listen)

	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	`Missouri J. Mathematical Sciences (New web address)`
	CROSSREFS	`Sequence in context: A118534 A167352 A094472 this_sequence A138364 A095364 A094052` `Adjacent sequences: A028847 A028848 A028849 this_sequence A028851 A028852 A028853`
	KEYWORD	`nonn`
	AUTHOR	`Richard M Kreminski (kremin(AT)boisdarc.tamu-commerce.edu)`

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.