Number of nX4 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

A224277

Number of nX4 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

Terms

    a(0) =130a(1) =4580a(2) =84132a(3) =1334973a(4) =21348990a(5) =356222482a(6) =6172817040a(7) =109166159263

External references