Number of n X 4 0..2 arrays with rows nondecreasing and antidiagonals unimodal.

A224008

Number of n X 4 0..2 arrays with rows nondecreasing and antidiagonals unimodal.

Terms

    a(0) =15a(1) =225a(2) =2661a(3) =28541a(4) =297859a(5) =3094127a(6) =32148473a(7) =334179881a(8) =3474343713a(9) =36122604265a(10) =375565139165

External references