Number of (n+1) X 2 0..3 arrays with the number of clockwise edge increases in every 2 X 2 subblock differing from each horizontal or vertical neighbor.
A205459
Number of (n+1) X 2 0..3 arrays with the number of clockwise edge increases in every 2 X 2 subblock differing from each horizontal or vertical neighbor.
Terms
- a(0) =256a(1) =2120a(2) =17920a(3) =151824a(4) =1285076a(5) =10876432a(6) =92062852a(7) =779221408a(8) =6595612052a(9) =55825506424a(10) =472525827000
External references
- oeis: A205459