Question

Fill in the blank

$\begin{array}{cccc}1& 2& 4& 6\\ 1& 4& 16& 36\\ 3& 5& 7& 8\\ 8& 24& ....& 63\end{array}$

Answer 1

The numbers in the second row are formed by squaring the numbers in the first row. The numbers in the fourth row are formed by squaring the numbers in the third row and subtracting 1.
$1^2=1;2^2=4;4^2=16;6^2=36\to 1stand2ndrownumbers.$
$3^2-1=8;5^2-1=24;7^2-1=48;8^2-1=63\to 3rdand4thrownumbers$