158934domain: NAppears in sequencesa(n) = ceiling(n*phi^19), where phi is the golden ratio, A001622.at n=17A004974Number 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), (0, 1, 1), (1, 0, 0), (1, 1, -1)}.at n=9A150285