2724948992domain: NAppears in sequencesExpansion of 1/sqrt(1-4*x-4*x^2+16*x^3).at n=17A106183Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (0, 1, -1), (0, 1, 1), (1, -1, 0)}.at n=17A148967