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2019 AMC 10B Question 25

AMC10 · 2019 AMC 10B

Question 25

How many sequences of $0$s and $1$s of length $19$ are there that begin with a $0,$ end with a $0,$ contain no two consecutive $0$s, and contain no three consecutive $1$s?
  1. $ 55 $
  2. $ 60 $
  3. $ 65 $
  4. $ 70 $
  5. $ 75 $