Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,1,0,1 for x=0,1,2,3,4.
A197527
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =41a(2) =1444a(3) =12071a(4) =266240a(5) =4538784a(6) =73297686a(7) =1237970513a(8) =21169912001a(9) =353504327702
External references
- oeis: A197527