2241420

Appears in sequences

• Number of n-step polygons on f.c.c. lattice.at n=7A005398
• Number of (3+1) X (n+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=13A250800