193375

Appears in sequences

• Number of polyominoes with n cells, symmetric about two orthogonal axes.at n=40A056877
• a(n) = n*(n + 1)*(11*n^2 + 11*n - 10)/24.at n=25A264854
• Number of polyominoes of n cells with both horizontal and vertical symmetries, for which the 180-degree rotational symmetry has an axis that coincides with the center of a square, but without 90-degree rotational symmetry.at n=40A351190