Number of 7Xn 0..2 arrays with rows nondecreasing and antidiagonals unimodal.

A224017

Number of 7Xn 0..2 arrays with rows nondecreasing and antidiagonals unimodal.

Terms

    a(0) =2187a(1) =279936a(2) =4549684a(3) =32148473a(4) =157347899a(5) =630339756a(6) =2200064042a(7) =6905100668a(8) =19884396658a(9) =53273320570a(10) =134149069532a(11) =319991143494a(12) =727540081476

External references