Number of (n+1)X(5+1) 0..3 arrays with no adjacent elements equal and with each 2X2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases.
A234783
Number of (n+1)X(5+1) 0..3 arrays with no adjacent elements equal and with each 2X2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases.
Terms
- a(0) =125228a(1) =17521780a(2) =2502596188a(3) =359793857812
External references
- oeis: A234783