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A147711 Decimal expansion of coth(EulerGamma) = 1.9207... 4
1, 9, 2, 0, 7, 1, 7, 4, 9, 6, 0, 5, 1, 1, 0, 2, 7, 3, 7, 9, 7, 3, 6, 4, 8, 6, 6, 3, 4, 8, 3, 2, 1, 1, 2, 5, 5, 4, 7, 9, 1, 0, 6, 1, 9, 4, 0, 2, 4, 9, 7, 6, 1, 5, 5, 4, 4, 1, 2, 6, 4, 9, 1, 8, 9, 0, 1, 9, 9, 7, 8, 5, 5, 8, 7, 1, 2, 2, 5, 2, 1, 0, 5, 2, 1, 7, 0, 8, 1, 1, 9, 0, 9, 9, 6, 2, 1, 1, 5, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For cosh(EulerGamma) see A147708; for sinh(EulerGamma) see A147709; for tanh(EulerGamma) see A147710.

LINKS

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

EXAMPLE

Equals 1.920717496051102737973648663483211255479106194024976155441...

MATHEMATICA

First[RealDigits[N[(Exp[EulerGamma] + Exp[ -EulerGamma])/(Exp[EulerGamma] - Exp[ -EulerGamma]), 100]]]

PROG

(PARI) default(realprecision, 100); (exp(Euler) + exp(-Euler))/(exp(Euler) - exp(-Euler)) \\ G. C. Greubel, Aug 29 2018

(PARI) 1/tanh(Euler) \\ Charles R Greathouse IV, May 14 2019

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); (Exp(EulerGamma(R)) + Exp(-EulerGamma(R)))/(Exp(EulerGamma(R)) - Exp(-EulerGamma(R))); // G. C. Greubel, Aug 29 2018

CROSSREFS

Cf. A001620, A098907, A147709, A147710.

Sequence in context: A019876 A155696 A098875 * A096388 A153463 A240985

Adjacent sequences:  A147708 A147709 A147710 * A147712 A147713 A147714

KEYWORD

cons,nonn

AUTHOR

Artur Jasinski, Nov 11 2008

STATUS

approved

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Last modified August 8 19:29 EDT 2020. Contains 336298 sequences. (Running on oeis4.)