Sponge
A sponge is a solid which can be parameterized by Integers 
, 
, and 
which satisfy the equation
The possible sponges are
, 
, 
, 
, and 
(Ball and Coxeter 1987).See also Honeycomb, Menger Sponge, Sierpinski Sponge, Tetrix
References
Ball, W. W. R. and Coxeter, H. S. M. Mathematical Recreations and Essays, 13th ed. New York: Dover, p. 152, 1987. Cromwell, P. R. Polyhedra. New York: Cambridge University Press, p. 79, 1997.
- Cubic Equation
- Cubic Number
- Cubic Reciprocity Theorem
- Cubic Spline
- Cubic Surface
- Cubicuboctahedron
- Cubique d'Agnesi
- Cubitruncated Cuboctahedron
- Cuboctahedron
- Cuboctatruncated Cuboctahedron
- Cubocycloid
- Cubohemioctahedron
- Cuboid
- Cullen Number
- Cumulant
- Cumulant-Generating Function
- Cumulative Distribution Function
- Cundy and Rollett's Egg
- Cunningham Chain
- Cunningham Function
- Cunningham Number
- Cunningham Project
- Cupola
- Cupolarotunda
- Curl