a(k,m)  tabf head (staircase) for  A091741

 
   k\m       0          1         2         3         4        5       6      7      8   9  10

                      
   2         1          0         0         0         0        0       0      0      0   0   0
                      
   3         4          1         0         0         0        0       0      0      0   0   0
                      
   4       -36          8         9         1         0        0       0      0      0   0   0
                      
   5      -288         18        83        18         1        0       0      0      0   0   0
                       
   6      7200      -2352     -2366       165       205       27       1      0      0   0   0
                      
   7     86400     -18000    -31936      -926      2735      565      41      1      0   0   0
                     
   8  -4233600    1647360   1541304   -286084   -187614    -1491    7056   1014     54   1   0
                  
   9  -67737600  19968480  27275064  -2562556  -3442594  -254583  115605  24906   2004  73   1

  
  The sequence of row lengths of this tabf array is [1,2,4,5,7,8,10,11,...] = A032766(k-2) + 1 = 
  
  A001651(k-2) = floor((3*k-4)/2) for k>=2.