Number of (n+1)X(5+1) 0..3 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.
A237971
Number of (n+1)X(5+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) =208210a(1) =2270776a(2) =20123780a(3) =255374826a(4) =3450339192a(5) =43487194848a(6) =564910605674
External references
- oeis: A237971