Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.
A206077
Number of (n+1)X(n+1) 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to one.
Terms
- a(0) =124a(1) =13672a(2) =4379116a(3) =3974151636
External references
- oeis: A206077