51247domain: 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), (1, -1, -1), (1, 1, -1), (1, 1, 0)}.at n=10A148718G.f. 1/[Sum_{n>=0} (2*n+1)*(-x)^(n*(n+1)/2)].at n=9A202143