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

A233596

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

Terms

    a(0) =341849a(1) =20463326a(2) =1210323458a(3) =71466955645

External references