Number of (n+1)X4 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.
A205241
Number of (n+1)X4 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) =2990a(1) =36478a(2) =515162a(3) =7051340a(4) =97718448a(5) =1334713506a(6) =18384097800a(7) =251875514320
External references
- oeis: A205241