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Marbles in boxes (Posted on 2017-08-16) Difficulty: 4 of 5
How many distinct distributions (x,y,z,w) of n identical marbles in 4 boxes labeled A,B,C and D are there, such that
x,y,z,w are positive integers in strictly increasing order?

Verify the validity of your formula (or set of formulas) by manual listing of all such distributions for n=18.

No Solution Yet Submitted by Ady TZIDON    
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Question I Guess | Comment 3 of 5 |
We are looking for an explicit formula(s) in terms of n?
  Posted by chun on 2017-08-16 12:03:20
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