[r-t] Cattermole

[The Flavells]

I forwarded the problem to a ringing friend David Robinson who is also a mathematician, his suggested solution is attached

Paul
  ----- Original Message ----- 
  From: Alexander Holroyd 
  To: ringing-theory at bellringers.net 
  Sent: Wednesday, September 02, 2009 8:22 PM
  Subject: Re: [r-t] Cattermole


  On Wed, 2 Sep 2009, Fred Bone wrote:

  > The limit as n tends to infinity of (n! / derangements(n)) is e.
  >

  That is true, but in fact so is the much stronger statement:
  derangements(n) = nearest integer to n!/e


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