Number of n X 7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,1 for x=0,1,2,3,4.
A197804
Number of n X 7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =9a(1) =1601a(2) =139212a(3) =12108247a(4) =1067467454a(5) =94343594548
External references
- oeis: A197804