Prove that it is integer..

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2nCn/(n+1) is an integer.

#Mathematics #Algebra

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Shaswata Roy ·2013-02-23 09:46:11

²ⁿC_nn+1 = ²ⁿC_n - ²ⁿC_n+1
hence it is always an integer.

²ⁿC_nn+1 is called a Catalan Number and gives us the number of paths that can be drawn from (0,0) to (n,n) such that the y coordinate is never greater than the x coordinate.

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Basic Integral Calculus Operators Symbols Matrix Cases

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Prove that it is integer..

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