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A301281 Numerator of percentage of volume of unit box in R^4 that can be filled by n disjoint symplectically embedded balls of equal radius. 1

%I

%S 1,1,2,8,9,48,224,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

%T 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

%U 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1

%N Numerator of percentage of volume of unit box in R^4 that can be filled by n disjoint symplectically embedded balls of equal radius.

%H Felix Schlenk, <a href="https://doi.org/10.1090/bull/1587">Symplectic embedding problems, old and new</a>, Bull. Amer. Math. Soc., 55 (2018), 139-182.

%e 1/2, 1, 2/3, 8/9, 9/10, 48/49, 224/225, 1, 1, 1, 1, 1, 1, 1, 1, ...

%Y Cf. A301282.

%K nonn,frac

%O 1,3

%A _N. J. A. Sloane_, Mar 20 2018

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Last modified September 19 10:33 EDT 2020. Contains 337178 sequences. (Running on oeis4.)