Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,0,1,4 for x=0,1,2,3,4.
A196487
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,0,1,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =99a(4) =2862a(5) =188603a(6) =28338246a(7) =10179007465
External references
- oeis: A196487