|
| |
|
|
A086054
|
|
Decimal expansion of Pi*log(2).
|
|
2
| |
|
|
2, 1, 7, 7, 5, 8, 6, 0, 9, 0, 3, 0, 3, 6, 0, 2, 1, 3, 0, 5, 0, 0, 6, 8, 8, 8, 9, 8, 2, 3, 7, 6, 1, 3, 9, 4, 7, 3, 3, 8, 5, 8, 3, 7, 0, 0, 3, 6, 9, 2, 8, 6, 2, 9, 4, 3, 2, 5, 7, 9, 5, 2, 5, 3, 1, 9, 4, 3, 0, 8, 5, 4, 9, 1, 7, 6, 7, 4, 1, 9, 8, 6, 4, 3, 0, 3, 2, 8, 9, 6, 1, 6, 1, 0, 6, 6, 3, 0, 2, 5, 0, 5, 7, 6, 1
(list; constant; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Madelung constant b2(2), negated.
|
|
|
LINKS
| Eric Weisstein's World of Mathematics, Madelung Constants
|
|
|
FORMULA
| Pi*log(2) = -(8/3)*int(log(x)/sqrt(1+4*x-4*x^2), x=0..1). [From John M. Campbell, Feb 07 2012]
|
|
|
EXAMPLE
| 2.1775860903036021305006888982376139...
|
|
|
MATHEMATICA
| RealDigits[Pi Log[2], 10, 120][[1]] (* From Harvey P. Dale, Dec 31 2011 *)
|
|
|
CROSSREFS
| Sequence in context: A060583 A078104 A072280 * A011134 A157240 A144749
Adjacent sequences: A086051 A086052 A086053 * A086055 A086056 A086057
|
|
|
KEYWORD
| nonn,cons,easy,changed
|
|
|
AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Jul 07, 2003
|
|
|
EXTENSIONS
| Corrected by Antti Ahti (antti.ahti(AT)tkk.fi), Nov 17 2004
More terms from Benoit Cloitre (benoit7848c(AT)orange.fr), May 21 2005
|
| |
|
|
