931716domain: 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, 1), (0, 0, -1), (1, -1, 1), (1, 1, 0)}.at n=11A149369Expansion of 1 + 3*(1-x-sqrt(1-2*x-3*x^2))/2.at n=17A168073