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CEMC Gauss (Grade 8), 2008

Number theory Difficulty 1.0 Junior Find the answer Canada

In the table, what number should be placed in the box?\\ $\begin{array}{c|c} n & n^3+n-1 \\ \hline 1 & 1 \\ 2 & 9 \\ 3 & 29 \\ 4 & 67 \\ 5 & \square \end{array}$

(A) $27$ (B) $247$ (C) $79$ (D) $19$ (E) $129$

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