A301282 - OEIS

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A301282

Denominator of proportion of the volume of a unit box in R^4 that can be filled by n disjoint symplectically embedded balls of equal radius.

1

2, 1, 3, 9, 10, 49, 225, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..83.

Felix Schlenk, Symplectic embedding problems, old and new, Bull. Amer. Math. Soc., 55 (2018), pp. 139-182.

EXAMPLE

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

CROSSREFS

Cf. A301281 (numerators).

Sequence in context: A237765 A249632 A126009 * A246063 A332064 A229417

Adjacent sequences: A301279 A301280 A301281 * A301283 A301284 A301285

KEYWORD

nonn,frac,easy

AUTHOR

N. J. A. Sloane, Mar 20 2018

STATUS

approved