171218domain: NAppears in sequencesRelated to enumeration of rooted catapolyoctagons (see Cyvin reference for precise definition).at n=13A121118Number 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, 0, 1), (1, -1, 1), (1, 1, 0)}.at n=10A149283