a(n,m) tabl head (triangle) for  A115193, called C(1,2)


   n\m      0        1        2        3        4        5        6        7        8        9 ...

                                
   0        1        0        0        0        0        0        0        0        0        0

   1        1        1        0        0        0        0        0        0        0        0

   2        3        3        1        0        0        0        0        0        0        0

   3       13       13        5        1        0        0        0        0        0        0

   4       67       67       27        7        1        0        0        0        0        0

   5      381      381      157       45        9        1        0        0        0        0

   6     2307     2307      963      291       67       11        1        0        0        0

   7    14589    14589     6141     1917      477       93       13        1        0        0

   8    95235    95235    40323    12867     3363      723      123       15        1        0

   9   636925   636925   270845    87805    23741     5437     1037      157       17        1
 
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  Row sums give A115197, n>=0:  [1,2,7,32,169,974,5947,37820,247885,1662890,11362399,78806936, ...], 
 
  which is the convolution of the m=0 column A064062 with itself. 
 
 
  

  The column sequences are: A064062, A064062(n+1), A084076, A115194, A115202-A115204, for m=0,..,6.

  

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