354452domain: 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, -1), (-1, -1, 1), (0, 1, 0), (1, 0, 1), (1, 1, -1)}.at n=10A150021p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S - S^4.at n=18A291401