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

A233797

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

Terms

    a(0) =7949773a(1) =1231134446a(2) =184701585960

External references