655089857domain: NAppears in sequencesTriangle read by rows: T(n,k) is the number of non-isomorphic colorings of a toroidal n X k grid using any number of swappable colors, 1 <= k <= n.at n=9A295197Number of non-isomorphic colorings of a toroidal n X n grid using any number of swappable colors.at n=3A376808