OFFSET
1,11
REFERENCES
H. T. Croft, K. J. Falconer and R. K. Guy: Unsolved problems in geometry, Springer, New York, 1991.
LINKS
E. Friedman, Erich's Packing Center
C. D. Maranas, C. A. Floudas and P. M. Pardalos, New results in the packing of equal circles in a square, Discrete Mathematics 142 (1995), p. 287-293.
K. J. Nurmela and Patric R. J. Östergård, Packing up to 50 equal circles in a square, Discrete Comput. Geom. 18 (1997) 1, p. 111-120.
E. Specht, www.packomania.com
CROSSREFS
KEYWORD
nonn
AUTHOR
Eckard Specht (eckard.specht(AT)physik.uni-magdeburg.de)
EXTENSIONS
I do not know how many of these values have been rigorously proved. - N. J. A. Sloane
STATUS
approved