$$
\begin{array}{rrrrrrr}
1, & 2, & 4, & 8, & 16, & 32, & 64,   \\\\
3, & 6, & 12, & 24, & 48, & 0, & 0,   \\\\
9, & 18, & 36, & 72, & 0, & 0, & 0,   \\\\
27, & 54, & 0, & 0, & 0, & 0, & 0,   \\\\
81, \\\\
    \\\\
5, & 10, & 20, & 40, & 80, & 0, & 0,   \\\\
15, & 30, & 60, & 0, & 0, & 0, & 0,   \\\\
45, & 90, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, \\\\
    \\\\
25, & 50, & 0, & 0, & 0, & 0, & 0,   \\\\
75, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, \\\\ 
   \\\\
   \hline
    \\\\
7, & 14, & 28, & 56, & 0, & 0, & 0,   \\\\
21, & 42, & 0, & 0, & 0, & 0, & 0,   \\\\
63, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, \\\\
    \\\\
35, & 70, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, & 0, & 0, & 0, & 0, & 0, & 0,   \\\\
0, \\\\
   \\\\
0, & 0, & 0, & 0, & 0, & 0, & \ldots   \\\\
   \\\\
   \hline
    \\\\
49\hphantom{,} \\\\
\end{array}
$$