a(n,m) tabl head (triangle) for  A095660: (1,3) Pascal
 
 
   n\m      0        1        2        3        4        5        6        7        8        9
 

   0        3        0        0        0        0        0        0        0        0        0
   
   1        1        3        0        0        0        0        0        0        0        0
   
   2        1        4        3        0        0        0        0        0        0        0
 
   3        1        5        7        3        0        0        0        0        0        0

   4        1        6       12       10        3        0        0        0        0        0

   5        1        7       18       22       13        3        0        0        0        0

   6        1        8       25       40       35       16        3        0        0        0

   7        1        9       33       65       75       51       19        3        0        0

   8        1       10       42       98      140      126       70       22        3        0

   9        1       11       52      140      238      266      196       92       25        3
 
   etc.