Number of n X n 0..2 arrays with rows unimodal and columns nondecreasing.

A224184

Number of n X n 0..2 arrays with rows unimodal and columns nondecreasing.

Terms

    a(0) =3a(1) =36a(2) =684a(3) =15779a(4) =408222a(5) =11444292a(6) =340780382a(7) =10635858679a(8) =344674481333

External references