id:A160450 - OEIS Search Results

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

+0
4

1, 5, 43, 681, 14491, 336465, 7997683 (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: A160447 A160448 A160449 this_sequence A160451 A160452 A160453`
	KEYWORD	`nonn,new`
	AUTHOR	`njas (njas(AT)research.att.com), Nov 15 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.