Number of n X n 0..2 arrays with rows and columns, considered as 3-ary numbers, in strictly increasing order.

A162134

Number of n X n 0..2 arrays with rows and columns, considered as 3-ary numbers, in strictly increasing order.

Terms

    a(0) =3a(1) =20a(2) =836a(3) =201620a(4) =281496540

External references