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Discrete Math
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OpenStudy (anonymous):
a) Find a recurrence relation for the number of ways to lay out a walkway with slate tiles if the tiles are red, green, or gray, so that no two red tiles are adjacent and tiles of the same color are considered indistinguish- able. b) What are the initial conditions for the recurrence re- lation in part (a)? c) How many ways are there to lay out a path of seven tiles as described in part (a)?
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