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

A223959

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

Terms

    a(0) =84a(1) =3906a(2) =92734a(3) =1718057a(4) =30643468a(5) =556027700a(6) =10269723035a(7) =191829887779

External references