Number of (n+2)X9 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically.

A204500

Number of (n+2)X9 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally or vertically.

Terms

    a(0) =8067170432a(1) =66134172894a(2) =379274173335

External references