id:A129047 - OEIS Search Results

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Number of n-node triangulations of the Klein bottle N_2 in which every node has degree >= 4.

+0
1

0, 6, 133, 1971, 23541, 245261, 2326207, 20685641, 175544819, 1438903377, 11485167375 (list; graph; listen)

	OFFSET	`7,2`
	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: A152289 A015503 A003373 this_sequence A050281 A096756 A013299` `Adjacent sequences: A129044 A129045 A129046 this_sequence A129048 A129049 A129050`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 13 2007`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.