Number of (n+1)X(n+1) 0..3 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237966
Number of (n+1)X(n+1) 0..3 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
Terms
- a(0) =256a(1) =10014a(2) =369068a(3) =25087700a(4) =3450339192a(5) =713207137992
External references
- oeis: A237966