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

A224167

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

Terms

    a(0) =4a(1) =100a(2) =4739a(3) =272130a(4) =16625026a(5) =1038484760a(6) =65713691148

External references