OFFSET
0,1
COMMENTS
Bezdek and Kuperberg's ellipsoid packing density.
REFERENCES
A. Bezdek and W. Kuperberg, Packing Euclidean space with congruent cyclinders and congruent ellipsoids, in Applied Geometry and Discrete Mathematics (The Victor Klee Festschrift), Amer. Math. Soc., 1991, pp. 71-80. [From N. J. A. Sloane, May 04 2010]
LINKS
Harry J. Smith, Table of n, a(n) for n = 0..20000
Eric Weisstein's World of Mathematics, Ellipsoid Packing
EXAMPLE
.75335546051952988027803823783535476826403235090091185751340...
MATHEMATICA
RealDigits[(24Sqrt[2]-6Sqrt[3]-2Pi) Pi/72, 10, 120][[1]] (* Harvey P. Dale, Dec 16 2022 *)
PROG
(PARI) { default(realprecision, 20080); x=10*((24*sqrt(2) - 6*sqrt(3) - 2*Pi)*Pi)/72; for (n=0, 20000, d=floor(x); x=(x-d)*10; write("b093824.txt", n, " ", d)); } \\ Harry J. Smith, Jun 18 2009
CROSSREFS
KEYWORD
AUTHOR
Eric W. Weisstein, Apr 16 2004
EXTENSIONS
Offset corrected by R. J. Mathar, Feb 05 2009
Edited by N. J. A. Sloane, Aug 10 2010
STATUS
approved