

A351159


Number of polyominoes of n cells with both diagonal symmetries, for which the 180degree rotational symmetry has an axis that coincides with the center of a square, but without 90degree rotational symmetry.


2



0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 2, 1, 3, 1, 6, 4, 9, 6, 20, 19, 32, 25, 64, 82, 114, 107, 217, 332, 397, 442, 751, 1316
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