Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.

A204409

Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically, exactly one way.

Terms

    a(0) =3570a(1) =154938a(2) =947990a(3) =11785518a(4) =253954944a(5) =2050960896a(6) =27153833472a(7) =585112190976

External references