689996domain: 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, 0), (-1, 1, -1), (0, 0, 1), (0, 1, -1), (1, -1, 1)}.at n=13A148148Number of self-inverse double cosets in Z_n\S_n/Z_n.at n=14A384630