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Suppose that \(*(n) = \left\{ n-2, n+2, 2n, \frac{n}{2} \right\}$\). For example, \(*(6) = \{4, 8, 12, 3\}\). For how many distinct integers \(n\) does \(*(n)\) have exactly three distinct elements?

 Apr 26, 2018
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There are 8 integers n.

 Dec 11, 2019

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