Difference between revisions of "2009 UNCO Math Contest II Problems/Problem 10"
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m (moved 2009 UNC Math Contest II Problems/Problem 10 to 2009 UNCO Math Contest II Problems/Problem 10: disambiguation of University of Northern Colorado with University of North Carolina) 
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Revision as of 21:14, 19 October 2014
Problem
Let . Determine the number of subsets of such that contains at least two elements and such that no two elements of differ by when
(a)
(b)
(c) generalize for any .