Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.
A196478
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =6a(2) =40a(3) =826a(4) =40221a(5) =5627727a(6) =1740363958
External references
- oeis: A196478