Number of nX6 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

A224308

Number of nX6 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

Terms

    a(0) =148a(1) =4690a(2) =61953a(3) =562760a(4) =4420701a(5) =33934344a(6) =268379906a(7) =2215451575a(8) =19023816444a(9) =168305254414

External references