

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, 105118
H. Dirnboeck and H. Stachel, The Development of the Oloid, Journal for Geometry and Graphics Volume 1 (1997), No. 2, 105118
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

JeanFrançois Alcover, Aug 10 2012


STATUS

approved



