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A273636 Decimal expansion of ((Pi*(15+7*sqrt(5))^2)/(12*(25+10*sqrt(5))^(3/2)))^(1/3), the sphericity of the dodecahedron. 4
9, 1, 0, 4, 5, 3, 1, 8, 1, 4, 0, 9, 2, 4, 2, 2, 7, 9, 1, 6, 9, 5, 3, 8, 0, 3, 4, 4, 6, 6, 2, 5, 8, 6, 2, 8, 5, 7, 4, 5, 8, 6, 5, 8, 0, 2, 9, 4, 3, 3, 8, 0, 1, 2, 6, 5, 0, 6, 1, 5, 5, 4, 9, 9, 2, 1, 3, 6, 4, 6, 6, 2, 5, 0, 0, 5, 2, 6, 4, 8, 2, 1, 0, 7, 1, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..85.

Wikipedia, Sphericity.

EXAMPLE

0.91045318140924227916953803446625862857458658029433801265061554...

PROG

(PARI) default(realprecision, 50080); my(x=((Pi*(15+7*sqrt(5))^2)/(12*(25+10*sqrt(5))^(3/2)))^(1/3)); for(k=1, 100, my(d=floor(x)); x=(x-d)*10; print1(d, ", "))

CROSSREFS

Cf. A273633, A273634, A273635, A273637.

Sequence in context: A269948 A121935 A070060 * A248414 A176980 A227817

Adjacent sequences:  A273633 A273634 A273635 * A273637 A273638 A273639

KEYWORD

nonn,cons

AUTHOR

Felix Fröhlich, May 27 2016

STATUS

approved

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Last modified April 19 20:04 EDT 2019. Contains 322291 sequences. (Running on oeis4.)