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

A224347

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

Terms

    a(0) =3a(1) =36a(2) =788a(3) =19608a(4) =495985a(5) =12340932a(6) =300892325a(7) =7202270426a(8) =169987960308

External references