Number of (n+2)X(4+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or vertically.

A233486

Number of (n+2)X(4+2) 0..3 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or vertically.

Terms

    a(0) =18116531520

External references