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Divide N balls to subgroups

  1. Nov 14, 2008 #1
    Hello.
    I am trying to find out the number of options to divide N balls to subgroups in a way that each subgroup does not contain more than k balls.

    Any idea?
    Thanks!
     
  2. jcsd
  3. Nov 14, 2008 #2

    CRGreathouse

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    Last edited: Nov 14, 2008
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