A160240 - OEIS

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A160240

Number of Greek-Key Tours on a 6-by-n grid.

1, 6, 78, 469, 3501, 22144, 144476, 899432, 5585508, 34092855 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Greek Key Tours are self-avoiding walks that touch every vertex of the grid and start at the bottom-left corner.`
	LINKS	`N. Johnston, On Maximal Self-Avoiding Walks.`
	CROSSREFS	`Cf. A046994, A046995, A145156, A145157` `Sequence in context: A116280 A134788 A167498 * A069669 A145359 A145360` `Adjacent sequences: A160237 A160238 A160239 * A160241 A160242 A160243`
	KEYWORD	`hard,more,nonn`
	AUTHOR	`Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), May 05 2009`

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Last modified February 13 02:03 EST 2012. Contains 205435 sequences.