id:A129050 - OEIS Search Results

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Number of n-node triangulations of the nonorientable surface N_3 in which every node has degree >= 4.

+0
1

0, 133, 9385, 298323, 6162345, 97905411, 1308857389, 15516720575, 168565283562, 1714609792914 (list; graph; listen)

	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: A020265 A028295 A133240 this_sequence A129049 A015264 A055579` `Adjacent sequences: A129047 A129048 A129049 this_sequence A129051 A129052 A129053`
	KEYWORD	`nonn`
	AUTHOR	`njas, May 13 2007`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.