a(n,m) tabl head (triangle) for  A097304
 
    n\m        1        2        3        4        5        6        7        8        9       10
 
    
    1          1        0        0        0        0        0        0        0        0        0
    
    2          0        1        0        0        0        0        0        0        0        0

    3          1        0        1        0        0        0        0        0        0        0

    4          0        1        0        1        0        0        0        0        0        0
 
    5          1        0        1        0        1        0        0        0        0        0

    6          0        2        0        1        0        1        0        0        0        0

    7          1        0        2        0        1        0        1        0        0        0

    8          0        2        0        2        0        1        0        1        0        0

    9          1        0        3        0        2        0        1        0        1        0

   10          0        3        0        3        0        2        0        1        0        1


   etc.