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 A062089 Decimal expansion of Sierpiński's constant. 11
 2, 5, 8, 4, 9, 8, 1, 7, 5, 9, 5, 7, 9, 2, 5, 3, 2, 1, 7, 0, 6, 5, 8, 9, 3, 5, 8, 7, 3, 8, 3, 1, 7, 1, 1, 6, 0, 0, 8, 8, 0, 5, 1, 6, 5, 1, 8, 5, 2, 6, 3, 0, 9, 1, 7, 3, 2, 1, 5, 4, 4, 9, 8, 7, 9, 7, 1, 9, 3, 2, 0, 4, 4, 0, 0, 1, 1, 5, 7, 1, 2, 0, 2, 1, 1, 1, 1, 7, 7, 2, 4, 5, 2, 7, 0, 6, 4, 2, 8, 3, 0, 3, 1, 3, 4 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES Steven R. Finch, Mathematical Constants, Cambridge, 2003, pp. 122-126. LINKS Harry J. Smith, Table of n, a(n) for n = 1..5000 Steven R. Finch, Sierpinski's Constant. [Broken link] Steven R. Finch, Sierpinski's Constant. [From the Wayback machine] Simon Plouffe, Sierpinski Constant to 2000 digits Eric Weisstein's World of Mathematics, Sierpiński Constant FORMULA -Pi*log(Pi)+2*Pi*gamma+4*Pi*log(GAMMA(3/4)). Equals Pi*A241017. - Eric W. Weisstein, Dec 10 2014 Equals Pi*(A086058-1). - Eric W. Weisstein, Dec 10 2014 EXAMPLE 2.5849817595792532170658935873831711600880516518526309173215... MATHEMATICA K=-Pi Log[Pi]+2 Pi EulerGamma+4 Pi Log[Gamma[3/4]]; First@RealDigits[N[K, 105]](* Ant King, Mar 02 2013 *) PROG (PARI) -Pi*log(Pi)+2*Pi*Euler+4*Pi*log(gamma(3/4)) (PARI) { default(realprecision, 5080); x=-Pi*log(Pi)+2*Pi*Euler+4*Pi*log(gamma(3/4)); for (n=1, 5000, d=floor(x); x=(x-d)*10; write("b062089.txt", n, " ", d)) } \\ Harry J. Smith, Aug 01 2009 CROSSREFS Cf. A062083, A222882, A222883. Sequence in context: A094001 A309252 A020859 * A011201 A201772 A196605 Adjacent sequences:  A062086 A062087 A062088 * A062090 A062091 A062092 KEYWORD cons,easy,nonn AUTHOR Jason Earls, Jun 27 2001 STATUS approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)