id:A006427 - OEIS Search Results

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Number of rooted toroidal maps.
(Formerly M5105)

+0
1

20, 1071, 26320, 431739, 5494896, 58677420, 550712668, 4681144391 (list; graph; listen)

	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: A128476 A160132 A138915 this_sequence A072962 A002305 A091535` `Adjacent sequences: A006424 A006425 A006426 this_sequence A006428 A006429 A006430`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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