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Source: 17-th Iranian Mathematical Olympiad 1999/2000
December 14, 2005
algebrapolynomialalgebra proposed
Problem Statement
Let be a positive integer. Suppose is a set of ordered n-\mbox{tuples} of
nonnegative integers such that, whenever and are nonnegative integers with, the is also in . If
is the number of elements of with the sum of components equal to,
prove that is a polynomial in for all sufficiently large.