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

 

Logo

Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A239097 Decimal expansion of -(gamma-log(2))/2. 11
0, 5, 7, 9, 6, 5, 7, 5, 7, 8, 2, 9, 2, 0, 6, 2, 2, 4, 4, 0, 5, 3, 6, 0, 0, 1, 5, 6, 8, 7, 8, 8, 7, 0, 6, 8, 5, 1, 6, 6, 7, 0, 3, 9, 9, 2, 1, 0, 1, 6, 5, 8, 2, 7, 6, 5, 7, 4, 5, 6, 3, 8, 7, 3, 0, 4, 2, 6, 2, 9, 4, 7, 5, 9, 6, 0, 1, 5, 0, 2, 2, 3, 3, 4, 4, 5, 8, 1, 3, 1, 8, 5, 2, 3, 3, 5, 9, 6, 9, 0, 1, 3, 6, 8, 5, 0, 1, 6, 8, 8, 5, 3, 8, 1, 8, 0, 1, 6, 2, 6, 3, 6, 2, 5, 0, 8, 1, 1, 0, 6, 3, 5, 7, 9 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Decimal expansion of the generalized Euler constant -gamma(0,2).

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..10000

D. H. Lehmer, Euler constants for arithmetical progressions, Collection of articles in memory of Juriĭ Vladimirovič Linnik. Acta Arith. 27 (1975), 125--142. MR0369233 (51 #5468). See p. 128.

EXAMPLE

.057965757829206224405360015687887068516670399210165827657456...

MATHEMATICA

Join[{0}, RealDigits[(Log[2] - EulerGamma)/2, 10, 100][[1]]] (* G. C. Greubel, Aug 28 2018 *)

PROG

(PARI) (log(2)-Euler)/2 \\ Charles R Greathouse IV, Mar 25 2014

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField();

(Log(2) - EulerGamma(R))/2; // G. C. Greubel, Aug 28 2018

CROSSREFS

Cf. A001620, A228725.

Sequence in context: A290151 A117031 A068456 * A153612 A276483 A021637

Adjacent sequences:  A239094 A239095 A239096 * A239098 A239099 A239100

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane, Mar 23 2014

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 December 18 10:43 EST 2018. Contains 318219 sequences. (Running on oeis4.)