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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A152416 Decimal expansion of 2-pi^2/6. 0
3, 5, 5, 0, 6, 5, 9, 3, 3, 1, 5, 1, 7, 7, 3, 5, 6, 3, 5, 2, 7, 5, 8, 4, 8, 3, 3, 3, 5, 3, 9, 7, 4, 8, 1, 0, 7, 8, 1, 0, 5, 0, 0, 9, 8, 7, 9, 3, 2, 0, 1, 5, 6, 2, 2, 6, 4, 4, 4, 1, 7, 7, 0, 6, 2, 9, 9, 9, 2, 5, 2, 9, 5, 9, 6, 7, 9, 9, 1, 2, 6, 1, 6, 6, 3, 7, 1, 0, 9, 9, 3, 8, 0, 2, 4, 1, 2, 9, 4, 6, 9, 5, 9, 9, 5 (list; constant; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

Essentially the 9-complement of the digits of A013661, starting with the second. Consider the constants N(s)=sum_{n=2,3,...infinity} 1/(n^s*(n-1)) = s-sum_{l=2..s} Zeta(l), where Zeta is Riemann's zeta function. N(1)=1 and this constant here is N(2).

FORMULA

Equals 2-A013661.

EXAMPLE

Equals 0.355065933151773563527584833353974810781050098793201562264441770...

MAPLE

evalf(2-Pi^2/6);

CROSSREFS

Sequence in context: A161353 A133758 A021742 * A200334 A138112 A106233

Adjacent sequences:  A152413 A152414 A152415 * A152417 A152418 A152419

KEYWORD

cons,easy,nonn

AUTHOR

R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 03 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 08:49 EST 2012. Contains 205740 sequences.