A006425 - OEIS

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A006425

Number of rooted toroidal maps.
(Formerly M3700)

4, 79, 900, 7885, 59080, 398846, 2499096, 14805705, 83969600, 459868530 (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: A201984 A054951 A048957 * A065930 A018807 A125710` `Adjacent sequences: A006422 A006423 A006424 * A006426 A006427 A006428`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.