A177652 - OEIS

A177652

Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, down, up, down, up

1, 65, 27707, 41243158, 159108376040, 1325880163281871, 21089698925887652590 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..7.`
	CROSSREFS	`Sequence in context: A355469 A084225 A278550 * A278795 A289946 A219564` `Adjacent sequences: A177649 A177650 A177651 * A177653 A177654 A177655`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin May 10 2010`
	STATUS	`approved`

Last modified August 7 23:50 EDT 2022. Contains 355995 sequences. (Running on oeis4.)