Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,2,1 for x=0,1,2,3,4.
A196968
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 4,3,0,2,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =7a(2) =34a(3) =815a(4) =31899a(5) =3602632a(6) =986337603a(7) =654433849619
External references
- oeis: A196968