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HMMT November 2013 T8

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Define the sequence {xi}i≥0\left\{x_{i}\right\}_{i \geq 0} by x0=x1=x2=1x_{0}=x_{1}=x_{2}=1 and xk=xk−1+xk−2+1xk−3x_{k}=\frac{x_{k-1}+x_{k-2}+1}{x_{k-3}} for k>2k>2. Find x2013x_{2013}.

Dataset text NuminaMath olympiads. Quoted with source.

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