Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 and no adjacent elements equal.
A234409
Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 and no adjacent elements equal.
Terms
- a(0) =185000a(1) =9552088a(2) =462953524a(3) =28707486504
External references
- oeis: A234409