T(n,m) tabl head (triangle) for  A096948 (Product of triangular numbers)
 
    n\m      1        2        3        4        5        6        7        8        9       10
 
    1        1        0        0        0        0        0        0        0        0        0
    
    2        3        9        0        0        0        0        0        0        0        0
    
    3        6       18       36        0        0        0        0        0        0        0
    
    4       10       30       60      100        0        0        0        0        0        0
    
    5       15       45       90      150      225        0        0        0        0        0
    
    6       21       63      126      210      315      441        0        0        0        0
    
    7       28       84      168      280      420      588      784        0        0        0
 
    8       36      108      216      360      540      756     1008     1296        0        0
     
    9       45      135      270      450      675      945     1260     1620     2025        0
   
   10       55      165      330      550      825     1155     1540     1980     2475     3025

   etc.