login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A195423 Decimal expansion of -2B = sum(r in Z, 1/(r*(1-r))), where Z is the set of zeros of the Riemann zeta-function which lie in the strip 0 <= Re(z) <= 1. 4
0, 4, 6, 1, 9, 1, 4, 1, 7, 9, 3, 2, 2, 4, 2, 0, 6, 7, 6, 2, 8, 6, 2, 0, 4, 9, 5, 8, 1, 2, 9, 9, 0, 5, 8, 3, 2, 4, 3, 8, 6, 4, 2, 5, 4, 3, 0, 4, 1, 0, 1, 5, 1, 9, 0, 5, 0, 7, 8, 4, 1, 4, 4, 4, 2, 5, 9, 4, 2, 7, 1, 2, 9, 5, 3, 4, 4, 9, 1, 5, 9, 9, 4, 1, 5, 9, 7, 1, 3, 9, 0, 2, 3, 4, 1, 9, 6, 6, 6, 7, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

See A074760 for references and links.

LINKS

Table of n, a(n) for n=0..100.

FORMULA

As a constant, equals 2*A074760.

EXAMPLE

-2B = gamma + 2 - log(4*Pi) = 0.046191417932242...

MATHEMATICA

RealDigits[ N[ EulerGamma + 2 - Log[4*Pi], 105], 10, 100] [[1]]

PROG

(PARI) Euler-log(4*Pi)+2 \\ Charles R Greathouse IV, Mar 10 2016

CROSSREFS

Cf. A002410, A074760, A233825.

Sequence in context: A330823 A199371 A156789 * A052110 A197020 A202321

Adjacent sequences:  A195420 A195421 A195422 * A195424 A195425 A195426

KEYWORD

cons,nonn

AUTHOR

Jonathan Sondow, Sep 18 2011

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 27 22:38 EST 2020. Contains 332312 sequences. (Running on oeis4.)