Number of n X n 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing.

A223858

Number of n X n 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =4a(1) =100a(2) =4884a(3) =315124a(4) =23738426a(5) =1989679315a(6) =181330154458

External references