Pascaltriangle mod

mod 2

       1  
      1 1  
     1 0 1  
    1 1 1 1  
   1 0 0 0 1  
  1 1 0 0 1 1  
 1 0 1 0 1 0 1  
1 1 1 1 1 1 1 1  

mod 3

      1  
     1 1  
    1 2 1  
   1 0 0 1  
  1 1 0 1 1  
 1 2 1 1 2 1  
1 0 0 2 0 0 1