147976domain: 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, 0), (0, 1, -1), (1, 0, 0), (1, 0, 1)}.at n=9A150430Number of nondecreasing integer sequences of length 28 with sum zero and sum of absolute values 2n.at n=17A158162