759480domain: 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, 0, -1), (0, -1, 0), (0, 0, 1), (1, 1, -1)}.at n=13A148326G.f.: g(x) * g(x^2), where g(x) is the g.f. of A000081.at n=19A339984