%I A002580 M1354 N0521
%S A002580 1,2,5,9,9,2,1,0,4,9,8,9,4,8,7,3,1,6,4,7,6,7,2,1,0,6,0,7,2,7,8,2,2,8,3,
               5,
%T A002580 0,5,7,0,2,5,1,4,6,4,7,0,1,5,0,7,9,8,0,0,8,1,9,7,5,1,1,2,1,5,5,2,9,9,6,
               7,
%U A002580 6,5,1,3,9,5,9,4,8,3,7,2,9,3,9,6,5,6,2,4,3,6,2,5,5,0,9,4,1,5,4,3,1,0,2,
               5
%N A002580 Decimal expansion of cube root of 2.
%D A002580 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002580 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002580 Uhler, Horace S.; Many-figure approximations for $\root 3\of 2$, $\root 
               3\of 3$, $\root 3\of 4$ and $\root 3\of 9$ with $\chi\sp 2$ data. 
               Scripta Math. 18, (1952). 173-176.
%H A002580 Harry J. Smith, <a href="b002580.txt">Table of n, a(n) for n=1,...,20000</
               a>
%H A002580 S. Plouffe, Plouffe's Inverter, <a href="http://pi.lacim.uqam.ca/piDATA/
               cuberoot2.txt">The cube root of 2 to 20000 digits</a>
%H A002580 S. Plouffe, <a href="http://www.worldwideschool.org/library/books/sci/
               math/MiscellaneousMathematicalConstants/chap16.html">2**(1/3) to 
               2000 places</a>
%H A002580 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               DelianConstant.html">Delian Constant</a>
%e A002580 1.2599210498948731647672106072782283505702514...
%t A002580 RealDigits[N[2^(1/3), 5! ]] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), 
               Sep 04 2008]
%o A002580 (PARI) { default(realprecision, 20080); x=2^(1/3); for (n=1, 20000, d=floor(x); 
               x=(x-d)*10; write("b002580.txt", n, " ", d)); } [From Harry J. Smith 
               (hjsmithh(AT)sbcglobal.net), May 07 2009]
%Y A002580 Cf. A002945 = Continued fraction. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               May 07 2009]
%Y A002580 Sequence in context: A020820 A111290 A129140 this_sequence A091656 A133508 
               A125969
%Y A002580 Adjacent sequences: A002577 A002578 A002579 this_sequence A002581 A002582 
               A002583
%K A002580 nonn,cons
%O A002580 1,2
%A A002580 N. J. A. Sloane (njas(AT)research.att.com).
%E A002580 Fixed my PARI program, had -n Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               May 19 2009