The On-Line Encyclopedia of Integer Sequences® (OEIS®)

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A152329

Number of permutations of floor(i*9/5), i=0..n-1, with all sums of 3 adjacent terms unique.
(history; published version)

#5 by Jon E. Schoenfield at Wed Apr 07 20:05:08 EDT 2021

STATUS

editing

approved

#4 by Jon E. Schoenfield at Wed Apr 07 20:05:06 EDT 2021

AUTHOR

_R. H. Hardin_ _, Dec 02 2008

STATUS

approved

editing

#3 by Russ Cox at Sat Mar 31 12:35:19 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Dec 02 2008

Discussion
Sat Mar 31	12:35	OEIS Server: https://oeis.org/edit/global/875

#2 by N. J. A. Sloane at Sat Oct 02 03:00:00 EDT 2010

KEYWORD

nonn,new

nonn

AUTHOR

Ron R. H. Hardin (rhhardin(AT)att.net) Dec 02 2008

#1 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

	NAME	`Number of permutations of floor(i*9/5), i=0..n-1, with all sums of 3 adjacent terms unique.`
	DATA	`1, 2, 6, 24, 112, 624, 3536, 26208, 205940, 1876968, 17768828, 184776220, 2037200054, 24055578898, 309833416942, 4278904822400`
	OFFSET	`1,2`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Dec 02 2008`
	STATUS	`approved`

Last modified August 30 00:57 EDT 2024. Contains 375520 sequences. (Running on oeis4.)