The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A016643 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A016643

Decimal expansion of log(20).
(history; published version)

#29 by R. J. Mathar at Tue Aug 13 06:38:47 EDT 2024

STATUS

editing

approved

#28 by R. J. Mathar at Tue Aug 13 06:38:17 EDT 2024

FORMULA

Equals A002162 + A002392. - R. J. Mathar, Aug 13 2024

STATUS

approved

editing

#27 by Charles R Greathouse IV at Wed May 15 01:33:12 EDT 2019

STATUS

editing

approved

#26 by Charles R Greathouse IV at Wed May 15 01:33:10 EDT 2019

LINKS

<a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

EXAMPLE

2.995732273553990993435223576142540775676601622989028230154007910460966... - Harry J. Smith, May 17 2009

2.995732273553990993435223576142540775676601622989028230154007910460966...

PROG

(PARI) { default(realprecision, 20080); x=log(20); for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b016643.txt", n, " ", d)); } \\ Harry J. Smith, May 17 2009, corrected May 20 2009

CROSSREFS

Cf. A016448 (continued fraction). - _Harry J. Smith_, May 17 2009

STATUS

approved

editing

#25 by N. J. A. Sloane at Tue May 08 15:11:54 EDT 2018

LINKS

Milton Abramowitz and Irene A. Stegun, eds., <a href="http://appswww.nrbookconvertit.com/abramowitz_and_stegunGo/ConvertIt/Reference/indexAMS55.htmlASP">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

Discussion

Tue May 08

15:11

OEIS Server: https://oeis.org/edit/global/2759

#24 by N. J. A. Sloane at Sun Dec 18 13:50:15 EST 2016

LINKS

Milton Abramowitz and Irene A. Stegun, eds., <a href="http://wwwapps.nrbook.com/abramowitz_and_stegun/index.html">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

Discussion

Sun Dec 18

13:50

OEIS Server: https://oeis.org/edit/global/2580

#23 by Jon E. Schoenfield at Sat Jan 02 01:02:16 EST 2016

STATUS

editing

approved

#22 by Jon E. Schoenfield at Sat Jan 02 01:02:14 EST 2016

LINKS

Harry J. Smith, <a href="/A016643/b016643.txt">Table of n, a(n) for n = 1..20000</a>

STATUS

approved

editing

#21 by Vaclav Kotesovec at Sat Jul 04 02:58:44 EDT 2015

STATUS

reviewed

approved

#20 by Joerg Arndt at Sat Jul 04 01:02:06 EDT 2015

STATUS

proposed

reviewed