Question: Consider the 5x5 matrix

\[A=\left[ \begin{matrix} 2 & 5 & 10 & 17 & 26 \\ 3 & 6 & 11 & 18 & 27 \\ 4 & 7 & 12 & 19 & 28 \\ 5 & 8 & 13 & 20 & 29 \\ 6 & 9 & 14 & 21 & 30 \\ \end{matrix} \right]\]

and write \({{\left[ A \right]}_{ij}}\) in terms of i and j. Does your description 'work' for any other matrix? Why?