Number of (n+1)X3 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two.
A206191
Number of (n+1)X3 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two.
Terms
- a(0) =1012a(1) =18172a(2) =329216a(3) =5972392a(4) =108363344a(5) =1966171084a(6) =35674679732a(7) =647289744976
External references
- oeis: A206191