A129031 - OEIS

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A129031

Number of n-node triangulations of the torus S_1 in which every node has degree >= 4.

0, 1, 6, 75, 887, 9732, 97106, 897351, 7824619, 65344834, 528138249, 4162485476 (list; graph; refs; listen; history; internal format)

	OFFSET	`6,3`
	REFERENCES	`M. Jungerman and G. Ringel, Minimal triangulations on orientable surfaces, Acta Math. 145 (1980), 121-154.`
	LINKS	`Thom Sulanke, Generating triangulations of surfaces (surftri), (also subpages).`
	CROSSREFS	`Sequence in context: A177561 A069852 A049235 * A139088 A193784 A162863` `Adjacent sequences: A129028 A129029 A129030 * A129032 A129033 A129034`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), May 12 2007`

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Last modified February 14 08:49 EST 2012. Contains 205614 sequences.