Number of (n+1)X3 0..3 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock equal to the number in all its horizontal and vertical neighbors.
A205091
Number of (n+1)X3 0..3 arrays with the number of rightwards and downwards edge increases in each 2X2 subblock equal to the number in all its horizontal and vertical neighbors.
Terms
- a(0) =1328a(1) =13116a(2) =171790a(3) =2323490a(4) =33432873a(5) =473468278a(6) =6825854177a(7) =97434972458
External references
- oeis: A205091