Number of (n+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.

A233610

Number of (n+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.

Terms

    a(0) =17064a(1) =27826929a(2) =345855899520

External references