99822domain: NAppears in sequencesColumn 1 of triangle A052311.at n=16A052312Number 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), (0, 1, 1), (1, 0, -1)}.at n=12A148290a(n) = Sum_{d|n} sigma_3(d).at n=44A321140