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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A058655 Decimal expansion of area under the curve 1/Gamma(x) from zero to infinity. 5
2, 8, 0, 7, 7, 7, 0, 2, 4, 2, 0, 2, 8, 5, 1, 9, 3, 6, 5, 2, 2, 1, 5, 0, 1, 1, 8, 6, 5, 5, 7, 7, 7, 2, 9, 3, 2, 3, 0, 8, 0, 8, 5, 9, 2, 0, 9, 3, 0, 1, 9, 8, 2, 9, 1, 2, 2, 0, 0, 5, 4, 8, 0, 9, 5, 9, 7, 1, 0, 0, 8, 8, 9, 1, 2, 1, 9, 0, 1, 6, 6, 5, 5, 1, 0, 1, 8, 5, 3, 0, 8, 1, 6, 8, 1, 9, 6, 6, 3, 8, 1, 4, 1, 8, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Referred to as the Fransén-Robinson constant.

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..1001

Simon Plouffe, Fransen-Robibson constant

Simon Plouffe, Fransen-Robinson constant

Eric Weisstein's World of Mathematics, Fransén-Robinson Constant

F. Johansson, Value to 1000 decimal places.

EXAMPLE

2.807770242028519365221501186557772932308085920930198291220054809597100...

MATHEMATICA

RealDigits[ NIntegrate[ 1 / Gamma[ x ], {x, 0, Infinity}, AccuracyGoal -> 72, WorkingPrecision -> 90 ] ][ [ 1 ] ]

CROSSREFS

Cf. A046943 (continued fraction).

Sequence in context: A020860 A246725 A188934 * A058964 A021360 A028256

Adjacent sequences:  A058652 A058653 A058654 * A058656 A058657 A058658

KEYWORD

nonn,cons

AUTHOR

Robert G. Wilson v, Jan 05 2001

EXTENSIONS

More terms from Philip Sung (philip_sung(AT)hotmail.com), Jan 22 2002

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 November 29 03:09 EST 2014. Contains 250479 sequences.