Create tabulate_interactive.py

n: 10
extent: 5
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 10 x   1 =   10
 10 x   2 =   20
 10 x   3 =   30
 10 x   4 =   40
 10 x   5 =   50
n: 12
extent: 13
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 12 x   1 =   12
 12 x   2 =   24
 12 x   3 =   36
 12 x   4 =   48
 12 x   5 =   60
 12 x   6 =   72
 12 x   7 =   84
 12 x   8 =   96
 12 x   9 =  108
 12 x  10 =  120
 12 x  11 =  132
 12 x  12 =  144
 12 x  13 =  156