Number of nX6 0..3 arrays with rows and columns unimodal and antidiagonals nondecreasing.

A224048

Number of nX6 0..3 arrays with rows and columns unimodal and antidiagonals nondecreasing.

Terms

    a(0) =610a(1) =59792a(2) =1801402a(3) =28403642a(4) =310514900a(5) =2701569493a(6) =20096076442a(7) =133729094355a(8) =821109158656

External references