Matrix elements

$A=\left[\begin{array}{rr}13 & 1 & 17 & 5 & -16 \\2 & 6 & 3 & -1 & 8 \\0 &1 & -8 & -7 & -16 \\-2 &-13 &-15 & 15 & 5 \\6 &6 &1 & 2 & 1\end{array}\right]$ **$A_{2,4}=$** [[☃ numeric-input 1]]