Number of 2 X (n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
A205737
Number of 2 X (n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
Terms
- a(0) =81a(1) =369a(2) =1764a(3) =8655a(4) =43155a(5) =218034a(6) =1112664a(7) =5722236a(8) =29600808a(9) =153794865a(10) =801658320a(11) =4188664470a(12) =21924195099a(13) =114902238879a(14) =602752637715
External references
- oeis: A205737