A face-centered cubic sphere packing obtained by placing layers of spheres one on top of another. Because there are two distinct ways to place each layer on top of the previous one, there are an infinite number of such packings as the number of layers is increased.
Barlow Packing
See also
Kepler Conjecture, Sphere PackingExplore with Wolfram|Alpha
References
Barlow, W. "Probable Nature of the Internal Symmetry of Crystals." Nature 29, 186-188, 1883.Sloane, N. J. A. "Kepler's Conjecture Confirmed." Nature 395, 435-436, 1998.Referenced on Wolfram|Alpha
Barlow PackingCite this as:
Weisstein, Eric W. "Barlow Packing." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/BarlowPacking.html