Search: id:A073012
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%I A073012
%S A073012 6,6,1,7,0,7,1,8,2,2,6,7,1,7,6,2,3,5,1,5,5,8,3,1,1,3,3,2,4,8,4,1,3,5,8,
%T A073012 1,7,4,6,4,0,0,1,3,5,7,9,0,9,5,3,6,0,4,8,0,8,9,4,4,2,2,9,4,7,9,5,8,4,6,
%U A073012 4,6,1,3,8,5,9,7,6,3,1,3,0,6,6,5,2,4,8,0,7,6,8,1,0,7,1,2,0,1,5,1,7,0,9
%N A073012 Decimal expansion of Robbins constant.
%C A073012 The average distance between two points chosen at random inside a unit 
               cube.
%D A073012 D. P. Robbins, Average distance between two points in a box, Amer. Mathematical 
               Monthly, 85.4 1978 p. 278
%H A073012 Simon Plouffe, <a href="http://www.worldwideschool.org/library/books/
               sci/math/MiscellaneousMathematicalConstants/chap80.html">The Robbins 
               constant</a>
%H A073012 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               CubeLinePicking.html">Cube Line Picking</a>
%H A073012 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               HypercubeLinePicking.html">Hypercube Line Picking</a>
%F A073012 4/105+17/105Sqrt[2]-2/35Sqrt[3]+1/5Log[1+Sqrt[2]]+2/5Log[2+Sqrt[3]]-1/
               15Pi. - Eric Weisstein, Mar 02 2005
%e A073012 0.66170718226717623515583113324841358174640013579095...
%t A073012 RealDigits[ N[4/105 + 17/105*Sqrt[2] - 2/35*Sqrt[3] + 1/5*Log[1 + Sqrt[2]] 
               + 2/5*Log[2 + Sqrt[3]] - 1/15*Pi, 110]] [[1]]
%Y A073012 Sequence in context: A111719 A153605 A112302 this_sequence A102522 A105817 
               A093313
%Y A073012 Adjacent sequences: A073009 A073010 A073011 this_sequence A073013 A073014 
               A073015
%K A073012 cons,nonn
%O A073012 0,1
%A A073012 Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 03 2002

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