Counting Directed-convex Polyominoes According to Their Perimeter
نویسنده
چکیده
An approach is presented for the enumeration of directed-convex polyominos that are not parallelogram polyominoes and we establish that there are ( 2n n−2 ) with a perimeter of 2n + 4. Finally using known results we prove that there are ( 2n n ) directed-convex polyominos with a perimeter of 2n + 4.
منابع مشابه
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