| 11 | 11 | [[5,2],[5,4],[5,12],[5,14],[5,15],[5,17]] | 
          
          
            | 12 | 12 | [[6,1],[6,2],[6,3],[6,7],[6,10],[6,11],[6,12],[6,14],[6,16],[6,17],[6,18],[6,20]] | 
          
        
        
          
            | 13 |   | [[7,1],[7,2],[7,3],[7,9],[7,13],[7,17],[7,19]] | 
          
          
            | 14 |   | [[8,2],[8,4],[8,5],[8,9],[8,11],[8,13],[8,15]] | 
          
          
            | 15 |   | [[9,1],[9,5],[9,7],[9,11],[9.15],[9,16],[9,18],[9,19],[9,20]] | 
          
          
            | 16 |   | [[10,3],[10,4],[10,5],[10,8],[10,9],[10,17],[10,19]] | 
          
          
            |   | 13 | [[7,1],[7,2],[7,3],[7,6],[7,9],[7,13],[7,17],[7,19]] | 
          
          
            |   | 14 | [[8,2],[8,4],[8,5],[8,9],[8,11],[8,13],[8,15],[8,16],[8,20]] | 
          
          
            |   | 15 | [[9,1],[9,5],[9,7],[9,10],[9,11],[9,15],[9,16],[9,18],[9,19],[9,20]] | 
          
          
            |   | 16 | [[10,3],[10,4],[10,5],[10,8],[10,9],[10,11],[10,17],[10,19]] | 
          
        
        
          
            | 18 |   | [[12,3],[12,4],[12,6],[12,7],[12,11],[12,12],[12,13],[12,14]] | 
          
          
            |   | 18 | [[12,3],[12,4],[12,6],[12,7],[12,9],[12,11],[12,12],[12,13],[12,14]] | 
          
        
        
          
            | 19 | 19 | [[13,1],[13,2],[13,3],[13,5],[13,11],[13,17]] | 
          
          
            | 20 | 20 | [[14,1],[14,2],[14,3],[14,7],[14,8],[14,9],[14,17],[14,18],[14,19],[14,20]] | 
          
        
        
          
            | 22 | 22 | [[16,1],[16,2],[16,3],[16,5],[16,7],[16,9],[16,10],[16,13],[16,18],[16,20]] | 
          
          
            | 23 | 23 | [[17,1],[17,5],[17,6],[17,11],[17,15],[17,17],[17,18]] | 
          
        
        
          
            | 24 |   | [[18,2],[18,4],[18,15],[18,9],[18,10],[18,19]]  | 
          
          
            |   | 24 | [[18,2],[18,4],[18,15],[18,9],[18,10],[18,15],[18,19]]  | 
          
        
        
          
            | 25 | 25 | [[19,1],[19,2],[19,5],[19,11],[19,18],[19,20]] | 
          
          
            | 26 | 26 | [[20,1],[20,3],[20,6],[20,8],[20,10],[20,12],[20,13],[20,14]]  |