Number of (n+1)X(n+1) 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in each of its horizontal and vertical neighbors.
A205238
Number of (n+1)X(n+1) 0..2 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in each of its horizontal and vertical neighbors.
Terms
- a(0) =81a(1) =4158a(2) =515162a(3) =144087952a(4) =96890744524
External references
- oeis: A205238