355475domain: NAppears in sequencesNumber 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, 1), (-1, 0, 0), (-1, 1, 1), (0, 0, -1), (1, 0, 1)}.at n=11A149243A Chebyshev transform of the little Schroeder numbers A001003.at n=10A162548