358876domain: 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, 0, 0), (0, -1, 0), (0, 0, 1), (0, 1, 0), (1, 1, -1)}.at n=10A150140a(n) = (7*n^4 + 5*n^2)/12.at n=27A185505