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In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red.  How many ways are there to color the five squares?

 Nov 19, 2022
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See the answer here:  https://web2.0calc.com/questions/counting-question_113

 Nov 19, 2022

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