Number of (n+1) X 3 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.
A206670
Number of (n+1) X 3 0..2 arrays with no 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors or the same number of counterclockwise edge increases as its vertical neighbors.
Terms
- a(0) =360a(1) =1812a(2) =9318a(3) =47106a(4) =243432a(5) =1242930a(6) =6474150a(7) =33323136a(8) =173699544a(9) =898948062a(10) =4687777926a(11) =24335901672a(12) =126930698646a(13) =660162473754
External references
- oeis: A206670