A013990 - OEIS

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A013990

Edge-disjoint paths between opposite corners of n X n grid.

1, 1, 2, 16, 800, 323632, 1086297184, 30766606427588, 7466577706821521924, 15681997226277809235573754 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	REFERENCES	`rec.puzzles Dec 10 1995`
	CROSSREFS	`Sequence in context: A012920 A013088 A013137 * A013005 A013000 A013178` `Adjacent sequences: A013987 A013988 A013989 * A013991 A013992 A013993`
	KEYWORD	`nonn,hard`
	AUTHOR	`Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil)`

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Last modified February 15 20:26 EST 2012. Contains 205852 sequences.