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A229705 Decimal expansion of sum_{k>=1} 1/binomial(3k,k). 0
4, 1, 4, 3, 2, 2, 0, 4, 4, 3, 2, 1, 8, 2, 0, 3, 9, 1, 8, 6, 5, 0, 0, 3, 9, 4, 3, 8, 3, 1, 2, 4, 8, 9, 5, 0, 8, 4, 5, 2, 7, 2, 7, 4, 2, 1, 4, 3, 9, 5, 2, 7, 7, 6, 4, 7, 2, 9, 3, 5, 3, 3, 2, 5, 6, 7, 2, 0, 4, 6, 7, 1, 2, 4, 6, 0, 4, 3, 8, 5, 6, 8, 8, 1, 5, 6, 3, 5, 8, 2, 4, 3, 0, 5, 0, 5, 7, 7, 1, 8, 2, 5, 5, 4, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..104.

J. M. Borwein, R. Girgensohn, Evaluations of binomial series, Aequat. Math. 70 (2005) 25-36, Eq. (39).

EXAMPLE

0.4143220443218203918650039438312489508452...

MATHEMATICA

HypergeometricPFQ[{1, 3/2, 2}, {4/3, 5/3}, 4/27]/3 // RealDigits[#, 10, 105]& // First (* Jean-François Alcover, Feb 18 2014 *)

CROSSREFS

Cf. A073016.

Sequence in context: A049007 A016686 A060037 * A321593 A173259 A267633

Adjacent sequences:  A229702 A229703 A229704 * A229706 A229707 A229708

KEYWORD

nonn,cons

AUTHOR

R. J. Mathar, Sep 27 2013

EXTENSIONS

More terms from Jean-François Alcover, Feb 18 2014

STATUS

approved

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Last modified June 1 04:57 EDT 2020. Contains 334758 sequences. (Running on oeis4.)