Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,4,1 for x=0,1,2,3,4.
A196449
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,4,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =6a(2) =40a(3) =594a(4) =27320a(5) =3707781a(6) =926499600a(7) =539621963877
External references
- oeis: A196449