OFFSET
1,1
COMMENTS
A three-dimensional Apollonian packing.
LINKS
Nicolas Hannachi, Illustration of this packing, showing some of the initial terms [Fig. 2b in Kontorovich (2012), used with permission]
Nicolas Hannachi, Des cercles tangents et des sphères tangentes
Alex Kontorovich, The local-global principle for integral Soddy sphere packings, arXiv:1208.5441, 2012.
CROSSREFS
KEYWORD
sign,more
AUTHOR
N. J. A. Sloane, Aug 23 2015
STATUS
approved