Each step has three posts on it, and three is the fourth number in the Fibonacci sequence. The first step looks as though it may only have two posts, although I can't quite tell. If that is the case, then it is still part of the sequence because two is the Fibonacci number that precedes three.
Each step has three posts on it, and three is the fourth number in the Fibonacci sequence. The first step looks as though it may only have two posts, although I can't quite tell. If that is the case, then it is still part of the sequence because two is the Fibonacci number that precedes three.
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