2054775

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 1), (1, -1, 0), (1, 1, -1)}.at n=12A148987
• Number of lattice paths from (0,0) to (n,n) using steps (1,0), (1,1), (1,2), and (2,1).at n=14A191354