poligonos concavos ordenados completos 19
They are the ones that can be separated into two parallelograms split in congruent parallelograms or a parallelogram and a parallelogram divided into congruent parallelograms, and have as a shortlisting ( m, r, 1, ) or ( m, r, 2 ) m greater or equal to r, r greater or equal to two.
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