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A215447 Decimal expansion of the Oloid's volume. 0
3, 0, 5, 2, 4, 1, 8, 4, 6, 8, 4, 2, 4, 3, 7, 4, 8, 5, 6, 6, 9, 7, 2, 0, 0, 5, 3, 1, 9, 3, 2, 1, 8, 6, 2, 5, 4, 5, 6, 8, 3, 9, 3, 2, 1, 0, 6, 4, 2, 9, 8, 3, 7, 1, 1, 0, 9, 0, 4, 9, 2, 0, 0, 3, 0, 7, 7, 6, 6, 1, 2, 0, 3, 8, 0, 7, 5, 2, 9, 5, 4, 9, 8, 0, 5, 5, 4, 5, 4, 0, 8, 4, 2, 6, 5, 6, 1, 2, 5, 4, 7, 8, 4, 1, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..105.

H. Dirnboeck and H. Stachel, The Development of the Oloid, Journal for Geometry and Graphics Volume 1 (1997), No. 2, 105-118

Steven R. Finch, Convex Hull of Two Orthogonal Disks, arXiv:1211.4514v3 [math.MG] 2016 p. 14.

Mathworld, Oloid entry

Wikipedia, Oloid entry

EXAMPLE

3.052418468424374856697200531932186254568393210642983711090492003...

MAPLE

2/3*(EllipticK(sqrt(3)/2)+2*EllipticE(sqrt(3)/2)); evalf(%, 120); # R. J. Mathar, Aug 11 2012, corrected by Vaclav Kotesovec, Apr 22 2015

MATHEMATICA

v[r_] := 2/3*(EllipticK[3/4] + 2*EllipticE[3/4])*r^3; RealDigits[N[v[1], 105]] // First

CROSSREFS

Sequence in context: A196111 A261628 A007431 * A159980 A098496 A175297

Adjacent sequences:  A215444 A215445 A215446 * A215448 A215449 A215450

KEYWORD

nonn,cons

AUTHOR

Jean-Fran├žois Alcover, Aug 10 2012

STATUS

approved

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Last modified December 7 05:39 EST 2016. Contains 278841 sequences.