366808domain: 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, 0, 1), (1, -1, 1), (1, 1, -1), (1, 1, 0)}.at n=10A149411Expansion of (1/x) * Series_Reversion( x / (1 + x^2 / (1 - x)^2) ).at n=14A389245