A129056 - OEIS

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A129056

Number of n-node triangulations of the nonorientable surface N_4 in which every node has degree >= 6.

0, 34, 3864, 87396, 818072, 4611407, 18933909 (list; graph; refs; listen; history; internal format)

	OFFSET	`8,2`
	REFERENCES	`G. Ringel, Wie man die geschlossenen nichtorientierbaren Flaechen in moeglichst wenig Dreiecke zerlegen kann, Math. Ann. 130 (1955), 317-326.`
	LINKS	`Thom Sulanke, Generating triangulations of surfaces (surftri), (also subpages).`
	CROSSREFS	`Sequence in context: A160471 A138590 A069223 * A187708 A199837 A005334` `Adjacent sequences: A129053 A129054 A129055 * A129057 A129058 A129059`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 13 2007`

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Last modified February 16 09:00 EST 2012. Contains 205904 sequences.