652147domain: NAppears in sequencesE.g.f. A(x) satisfies: A(1 - exp(-x)) = 1 + x*A(x).at n=7A135750Number 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, 1), (-1, 1, 0), (1, 0, -1), (1, 0, 0)}.at n=14A148058