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 A002581 Decimal expansion of cube root of 3. (Formerly M3220 N1304) 4
 1, 4, 4, 2, 2, 4, 9, 5, 7, 0, 3, 0, 7, 4, 0, 8, 3, 8, 2, 3, 2, 1, 6, 3, 8, 3, 1, 0, 7, 8, 0, 1, 0, 9, 5, 8, 8, 3, 9, 1, 8, 6, 9, 2, 5, 3, 4, 9, 9, 3, 5, 0, 5, 7, 7, 5, 4, 6, 4, 1, 6, 1, 9, 4, 5, 4, 1, 6, 8, 7, 5, 9, 6, 8, 2, 9, 9, 9, 7, 3, 3, 9, 8, 5, 4, 7, 5, 5, 4, 7, 9, 7, 0, 5, 6, 4, 5, 2, 5, 6, 6, 8, 6, 8, 3, 5, 0, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). 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. LINKS Harry J. Smith, Table of n, a(n) for n=1,...,20000 _Simon Plouffe_, The cube root of 3 to 2000 places _Simon Plouffe_, Plouffe's Inverter, The cube root of 3 to 2000 places EXAMPLE 1.442249570307408382321638310780109588391869253499350577546416... MATHEMATICA RealDigits[N[3^(1/3), 200]] (* From Vladimir Orlovsky, May 27 2010 *) PROG (PARI) { default(realprecision, 20080); x=3^(1/3); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b002581.txt", n, " ", d)); } [From Harry J. Smith, May 07 2009] CROSSREFS Cf. A002946 = Continued fraction. [From Harry J. Smith, May 07 2009] Sequence in context: A162232 A029676 A105190 * A161778 A099655 A146899 Adjacent sequences:  A002578 A002579 A002580 * A002582 A002583 A002584 KEYWORD nonn,cons AUTHOR EXTENSIONS Fixed my PARI program, had -n Harry J. Smith, May 19 2009 STATUS approved

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Last modified May 18 11:24 EDT 2013. Contains 225419 sequences.