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2008 PUMaC Algebra A1 / B3

Source:

September 24, 2019
algebra

Problem Statement

Given the sequence 1,2,1,2,2,1,2,2,2,1,2,2,2,2,1,...,1, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1,..., find nn such that the sum of the first nn terms is 20082008 or 20092009.
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