Number of 4Xn 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing.

A223867

Number of 4Xn 0..3 arrays with rows and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =35a(1) =1225a(2) =24199a(3) =315124a(4) =3017129a(5) =22852913a(6) =144081276a(7) =784071455a(8) =3781718633a(9) =16487698435a(10) =65952999251a(11) =244841613810a(12) =851144356707

External references