The following table shows the different columns created by selecting the seven numbers 1, 8, 11, 15, 28, 36 and 42.

In fact each of the 21 columns contains a different combination of numbers:


Chosen
Numbers
Column
1
Column
2
Column
3
Column
4
Column
5
Column
6
Column
7
Column
8
Column
9
Column
10
Column
11
Column
12
Column
13
Column
14
Column
15
Column
16
Column
17
Column
18
Column
19
Column
20
Column
21
                                           
1
            
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
8
  
8
8
8
8
8
          
8
8
8
8
8
8
8
8
8
8
11
11
  
11
11
11
11
  
11
11
11
11
        
11
11
11
11
11
11
15
15
15
  
15
15
15
15
  
15
15
15
  
15
15
15
      
15
15
15
28
28
28
28
  
28
28
28
28
  
28
28
28
  
28
28
  
28
28
    
28
36
36
36
36
36
  
36
36
36
36
  
36
36
36
  
36
36
  
36
  
36
  
42
42
42
42
42
42
  
42
42
42
42
  
42
42
42
  
42
42
  
42