38147070625domain: NAppears in sequencesNumber of 5-colorings of an n X n grid, up to rotational symmetry.at n=4A047940Number of inequivalent 4 X 4 matrices with entries in {1,2,3,...,n} up to rotations.at n=5A283027Array read by antidiagonals: T(n,k) is the number of k-colorings of an n X n grid, up to rotational symmetry.at n=49A343095