Number of (1+2) X (n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards.

A234055

Number of (1+2) X (n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards.

Terms

    a(0) =16488a(1) =367857a(2) =8226630a(3) =184027176a(4) =4114129859a(5) =91973148874

External references