A206480 - OEIS

A206480

(Number of permutations of {1,2,...,n} for which sums of five consecutive numbers (with wraparound) are all distinct)/2n

60, 46, 690, 2529, 67636, 184014, 2374017, 19353643 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`6,1`
	COMMENTS	`Essentially different ways 1,2,3,...n can be placed around a circle so that sums of five consecutive numbers are distinct.`
	LINKS	`Table of n, a(n) for n=6..13.`
	EXAMPLE	`Some examples of such permutations are: 12568374; 13756824; and 16253847`
	CROSSREFS	`Cf. A040018` `Sequence in context: A133000 A033380 A094086 * A230742 A112025 A060512` `Adjacent sequences: A206477 A206478 A206479 * A206481 A206482 A206483`
	KEYWORD	`nonn`
	AUTHOR	`Steve Butler, Feb 08 2012`
	STATUS	`approved`

Last modified May 24 21:08 EDT 2022. Contains 354043 sequences. (Running on oeis4.)