1908897150

Appears in sequences

• Triangle read by rows: T(n,k) is the number of non-isomorphic colorings of a toroidal n X k grid using exactly two colors under translational symmetry, 1 <= k <= n.at n=20A294684
• Number of colorings of a toroidal n X n grid using exactly two colors under translational symmetry.at n=5A376822