id:A160454 - OEIS Search Results

Search: id:A160454

Displaying 1-1 of 1 results found.

page 1

Number of isomorphism classes of multiple coverings of graphs with specified Betti number. See reference for precise definition.

+0
2

1, 7, 161, 14721, 1730861, 207388305, 24883501301 (list; graph; listen)

	OFFSET	`0,2`
	REFERENCES	`J. H. Kwak and J. Lee, Enumeration of graph coverings, surface branched coverings and related group theory, in Combinatorial and Computational Mathematics (Pohang, 2000), ed. S. Hong et al., World Scientific, Singapore 2001, pp. 97-161.`
	CROSSREFS	`Adjacent sequences: A160451 A160452 A160453 this_sequence A160455 A160456 A160457`
	KEYWORD	`nonn`
	AUTHOR	`njas (njas(AT)research.att.com), Nov 15 2009`

page 1

Search completed in 0.002 seconds

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.