Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.
A197430
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =25a(1) =2107a(2) =55567a(3) =4017895a(4) =195632425a(5) =9869104795a(6) =529968166606
External references
- oeis: A197430