Number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors.
A205911
Number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and the same number of counterclockwise edge increases as its vertical neighbors.
Terms
- a(0) =369a(1) =1791a(2) =9831a(3) =60108a(4) =387267a(5) =2554848a(6) =17051166a(7) =114537918a(8) =772431777a(9) =5222734311a(10) =35375284446a(11) =239899338933
External references
- oeis: A205911