Permutations: Adjacent Elements Are Coprime

Mon Mar 28 23:10:34 CEST 2005

2 6 8 60 24 504 576 6480

Zak

	-----Original Message----- 
	From: Emeric Deutsch [mailto:deutsch at duke.poly.edu] 
	Sent: Mon 3/28/2005 9:39 PM 
	To: Joshua Zucker 
	Cc: Leroy Quet; seqfan 
	Subject: Re: Permutations: Adjacent Elements Are Coprime
	
	

	What if we ask in addition that also first and last entries be
	relatively prime?
	
	I got 2,6,8,60,24,504 for n=2..7. Not in OEIS.
	Emeric
	
	

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