Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,1,0,2,3 for x=0,1,2,3,4.
A196944
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,1,0,2,3 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =11a(2) =210a(3) =18060a(4) =5039158a(5) =4998342821
External references
- oeis: A196944