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A200243
Decimal expansion of sqrt(192).
2
1, 3, 8, 5, 6, 4, 0, 6, 4, 6, 0, 5, 5, 1, 0, 1, 8, 3, 4, 8, 2, 1, 9, 5, 7, 0, 7, 3, 2, 0, 4, 6, 9, 7, 8, 9, 3, 5, 5, 4, 2, 4, 4, 2, 0, 3, 0, 4, 8, 3, 0, 4, 5, 0, 2, 4, 4, 4, 6, 4, 5, 5, 8, 3, 5, 6, 1, 5, 4, 6, 4, 1, 3, 5, 2, 7, 0, 4, 0, 0, 2, 9, 6, 6, 4, 9, 1, 6, 9, 4, 9, 4, 0, 5, 7, 9, 8, 8, 6, 0, 5, 4, 0, 5, 0
OFFSET
2,2
COMMENTS
Bezdek asks: if the Euclidean 3-space is partitioned into convex cells each containing a unit ball, how should the shapes of the cells be designed to minimize the average surface area of the cells? He proves that the average surface area in question is always at least sqrt(192).
LINKS
Karoly Bezdek, On a strong version of the Kepler conjecture, arXiv:1111.3092v1 [math.MG], Nov 14, 2011.
EXAMPLE
13.856406460551018348219570732046978935542442030483045024446455835615.... = 8*A002194.
MATHEMATICA
RealDigits[Sqrt[192], 10, 120][[1]] (* Harvey P. Dale, May 21 2018 *)
PROG
(PARI) sqrt(192) \\ Charles R Greathouse IV, Nov 14 2011
CROSSREFS
Sequence in context: A078361 A193014 A155676 * A236229 A343920 A258985
KEYWORD
nonn,easy,cons
AUTHOR
Jonathan Vos Post, Nov 14 2011
STATUS
approved