Title of article :
Enumerating symmetric directed convex polyominoes
Author/Authors :
Emeric Deutsch، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
It is shown, both analytically and bijectively, that the number of symmetric directed convex polyominoes with semiperimeter 2n+2 is equal to the central binomial coefficient (2nn).
Keywords :
Directed convex polyomino , Bilateral Dyck paths , Central binomial coefficients
Journal title :
Discrete Mathematics
Journal title :
Discrete Mathematics
