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Catalan Numbers
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What is the Catalan number for n = 4?
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A
14
💡 Explanation:
The Catalan number for n = 4 can be calculated using the formula C(n) = (2n)! / ((n+1)! * n!). Substituting n = 4, we get C(4) = (2*4)! / ((4+1)! * 4!) = 14.