Number of nX3 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

A223994

Number of nX3 0..2 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

Terms

    a(0) =10a(1) =76a(2) =476a(3) =2980a(4) =18672a(5) =117386a(6) =739672a(7) =4664776a(8) =29428242a(9) =185670484a(10) =1171477424a(11) =7391425016a(12) =46636189140a(13) =294251036912

External references