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

A234375

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

Terms

    a(0) =406416a(1) =24485940a(2) =1443868938a(3) =84764693441

External references