Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4.
A233941
Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 4.
Terms
- a(0) =44a(1) =2108a(2) =328508a(3) =176523392a(4) =327319305140
External references
- oeis: A233941