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

A234049

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

Terms

    a(0) =8226630a(1) =1425517650a(2) =244179417600

External references