782876domain: 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, 0), (-1, 1, -1), (-1, 1, 0), (1, 0, 1), (1, 1, 0)}.at n=10A150691Discriminants of real quadratic fields with 3-class tower group <81,10>.at n=22A269320