Number of n X n 0..3 arrays with rows and columns, considered as 4-ary numbers, in strictly increasing order.

A162135

Number of n X n 0..3 arrays with rows and columns, considered as 4-ary numbers, in strictly increasing order.

Terms

    a(0) =4a(1) =70a(2) =12282a(3) =20383931a(4) =337547720906

External references