10741819

Appears in sequences

• Triangle read by rows, 1 <= k <= n: T(n,k) = non-isomorphic colorings of a toroidal n X k grid using exactly four colors under translational symmetry and swappable colors.at n=9A294793
• Number of non-isomorphic colorings of a toroidal n X n grid using exactly four swappable colors.at n=3A376749