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A131330 Decimal expansion of constant C associated with the QRS constant. 2
2, 0, 3, 8, 1, 6, 9, 3, 7, 9, 7, 0, 2, 1, 5, 0, 6, 2, 1, 7, 1, 0, 6, 4, 8, 4, 5, 9, 7, 2, 8, 2, 9, 5, 5, 1, 6, 2, 7, 8, 7, 1, 3, 9, 6, 1, 8, 0, 5, 2, 0, 8, 0, 7, 0, 0, 4, 7, 0, 4, 4, 5, 6, 4, 3, 8, 2, 8, 7, 9, 7, 1, 1, 5, 2, 4, 6, 5, 1, 4, 7, 6, 8, 6, 8, 5, 7, 4, 2, 7, 8, 3, 1, 4, 9, 6, 2, 5, 8, 8, 6, 6, 6, 9, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, QRS Constant

EXAMPLE

2.0381693797021506217...

MATHEMATICA

digits = 105; c1 = z /. FindRoot[Zeta[1/2, z/2], {z, 1}, WorkingPrecision -> digits+5]; c = 1/4*Zeta[3/2, c1/2]; RealDigits[c, 10, digits] // First (* Jean-Fran├žois Alcover, Apr 07 2015 *)

PROG

(PARI) zetahurwitz(3/2, solve(x=.3, 1, zetahurwitz(1/2, x/2))/2)/4 \\ Charles R Greathouse IV, Jan 31 2018

CROSSREFS

Cf. A131329.

Sequence in context: A260591 A127160 A334847 * A022833 A257236 A209259

Adjacent sequences:  A131327 A131328 A131329 * A131331 A131332 A131333

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Jun 28 2007

STATUS

approved

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Last modified September 27 08:39 EDT 2021. Contains 347689 sequences. (Running on oeis4.)