Number of (n+1)X4 0..3 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.
A205654
Number of (n+1)X4 0..3 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) =15616a(1) =95008a(2) =511632a(3) =3227968a(4) =21711080a(5) =142040528a(6) =939384668a(7) =6315887616a(8) =43127525028a(9) =293504124464
External references
- oeis: A205654