Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
A197670
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =16a(1) =642a(2) =14503a(3) =403960a(4) =11277331a(5) =311676959a(6) =8613257822a(7) =239118653300
External references
- oeis: A197670