Number of (n+1)X3 0..3 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors.
A205418
Number of (n+1)X3 0..3 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock differing from the number in all its horizontal and vertical neighbors.
Terms
- a(0) =2768a(1) =62716a(2) =1448498a(3) =33701202a(4) =782598960a(5) =18167227774a(6) =421657055138
External references
- oeis: A205418