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Let f(x) return the number of times n appears in Pascal's Triangle. For example,(3)=2 and f(4)=2. If n is a positive integer, what is the minimum value of n ?

 May 16, 2019
 #1
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\(\text{At a minimum }\dbinom{n}{1}=\dbinom{n}{n-1}=n \text{ both appear}\\ \text{So the minimum number is }2\)

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 May 16, 2019
 #2
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thx! I needed that

ProffesorNobody  May 17, 2019

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