Number of colorings of an n X n grid up to permutation of the colors with no element having the same color as any diagonal or antidiagonal neighbor.

A361452

Number of colorings of an n X n grid up to permutation of the colors with no element having the same color as any diagonal or antidiagonal neighbor.

Terms

    a(0) =1a(1) =7a(2) =4192a(3) =953124784

External references