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A028848 Number of composite labeled T_0 topologies on n points. +0
1
0, 0, 25, 0, 2641, 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

Adjacent sequences: A028845 A028846 A028847 this_sequence A028849 A028850 A028851

Sequence in context: A108321 A059062 A110416 this_sequence A040630 A040631 A040632

KEYWORD

nonn

AUTHOR

Richard M Kreminski (kremin(AT)boisdarc.tamu-commerce.edu)

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.


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