A177307 - OEIS

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A177307

Number of permutations of 7 copies of 1..n with all adjacent differences <= 1 in absolute value.

1, 3432, 623576, 201922730, 48203722464, 11408205434138, 2535604038015218 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(n)=(7n)!/5040^n for n<=2`
	LINKS	`Table of n, a(n) for n=1..7.`
	CROSSREFS	`Sequence in context: A031787 A024751 A024759 * A140911 A177308 A177309` `Adjacent sequences: A177304 A177305 A177306 * A177308 A177309 A177310`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin May 06 2010`
	STATUS	`approved`

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Last modified May 18 09:19 EDT 2013. Contains 225419 sequences.