2521476

Appears in sequences

• Number of 6-colorings of an n X n grid, up to rotational symmetry.at n=3A047941
• Number of inequivalent 3 X 3 matrices with entries in {1,2,3,..,n} up to rotations.at n=6A282613
• Array read by antidiagonals: T(n,k) is the number of k-colorings of an n X n grid, up to rotational symmetry.at n=48A343095