login
This site is supported by donations to The OEIS Foundation.

 

Logo

Many excellent designs for a new banner were submitted. We will use the best of them in rotation.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A020777 Decimal expansion of (-1)*Gamma'(1/4)/Gamma(1/4) where Gamma(x) denotes the Gamma function. 6
4, 2, 2, 7, 4, 5, 3, 5, 3, 3, 3, 7, 6, 2, 6, 5, 4, 0, 8, 0, 8, 9, 5, 3, 0, 1, 4, 6, 0, 9, 6, 6, 8, 3, 5, 7, 7, 3, 6, 7, 2, 4, 4, 4, 3, 8, 7, 0, 8, 2, 4, 2, 2, 7, 1, 6, 5, 5, 2, 7, 9, 5, 5, 9, 5, 1, 8, 9, 5, 6, 7, 9, 5, 8, 2, 9, 8, 5, 3, 3, 1, 7, 0, 6, 8, 5, 5, 4, 4, 5, 6, 9, 5, 2, 0, 6, 1, 3, 4, 6, 1, 3, 1, 7, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

S.J. Patterson, "An introduction to the theory of the Riemann zeta function", Cambridge studies in advanced mathematics no. 14, p. 135

LINKS

Table of n, a(n) for n=1..105.

Wikipedia, Digamma function

FORMULA

Gamma'(1/4)/Gamma(1/4)=-EulerGamma-3*log(2)-Pi/2 where EulerGamma is the Euler-Mascheroni constant (A001620)

EXAMPLE

4.2274535333762654080895301460966835773672444387082422716552795595189567958...

MAPLE

evalf(gamma+3*log(2)+Pi/2) ; # R. J. Mathar, Nov 13 2011

MATHEMATICA

EulerGamma + Pi/2 + Log[8] // RealDigits[#, 10, 105][[1]] & (* Jean-Fran├žois Alcover, Jun 18 2013 *)

PROG

(PARI) Euler+3*log(2)+Pi/2

CROSSREFS

Sequence in context: A199609 A019834 A087507 * A153810 A098134 A079191

Adjacent sequences:  A020774 A020775 A020776 * A020778 A020779 A020780

KEYWORD

cons,nonn

AUTHOR

Benoit Cloitre, May 24 2003

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified April 18 12:06 EDT 2014. Contains 240707 sequences.