265461domain: NAppears in sequencesNumber of nonisomorphic connected functions with no fixed points, or proper rings with n edges.at n=14A002862Number 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, 0), (1, -1, 1), (1, 0, -1), (1, 1, 0)}.at n=10A149301