138348

Appears in sequences

• Number of paths from (0,0) to (3n,0) that stay in the first quadrant (x,y >= 0) and where each step is (3,0), (2,1), (1,2), or (1,-1).at n=6A107708
• Number of 2 X n 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=10A223919