Number of (n+1)X(4+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal.
A233924
Number of (n+1)X(4+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal.
Terms
- a(0) =15230a(1) =273318a(2) =5389600a(3) =117016814a(4) =2644508910a(5) =61446631860
External references
- oeis: A233924