A006423 - OEIS

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A006423

Number of rooted toroidal maps.
(Formerly M4748)

10, 240, 2246, 12656, 52164, 173776, 495820, 1256992, 2902702 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).` `Walsh, T. R. S.; Lehman, A. B.; Counting rooted maps by genus. III: Nonseparable maps. J. Combinatorial Theory Ser. B 18 (1975), 222-259.`
	CROSSREFS	`Sequence in context: A159497 A177595 A013922 * A067423 A171204 A156443` `Adjacent sequences: A006420 A006421 A006422 * A006424 A006425 A006426`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 14:49 EST 2012. Contains 206050 sequences.