2. The set of points obtained by taking the centers of a fixed polyomino.
Animal
See also
PolyominoExplore with Wolfram|Alpha
References
Delest, M.-P. and Viennot, G. "Algebraic Languages and Polyominoes [sic] Enumeration." Theoret. Comput. Sci. 34, 169-206, 1984.Read, R. C. "Contributions to the Cell Growth Problem." Canad. J. Math. 14, 1-20, 1962.Referenced on Wolfram|Alpha
AnimalCite this as:
Weisstein, Eric W. "Animal." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Animal.html