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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A120703 Decimal expansion of limiting difference of n - Sum[Cos[Pi/2^k],{k,0,n}]. 1
2, 3, 9, 4, 6, 4, 9, 8, 0, 2, 1, 2, 5, 1, 6, 5, 5, 5, 9, 2, 2, 1, 0, 0, 3, 1, 4, 2, 7, 1, 2, 0, 7, 3, 0, 9, 3, 9, 1, 1, 5, 4, 7, 1, 9, 2, 5, 6, 1, 2, 3, 0, 4, 1, 2, 3, 0, 8, 3, 0, 9, 3, 8, 4, 5, 8, 3, 3, 3, 3, 8, 1, 5, 8, 8, 5, 8, 9, 1, 9 (list; constant; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

Limit[n - Sum[Cos[Pi/2^k],{k,0,n}], n -> Infinity] Integrate[Sum[2^(-m)*(Sin[2^m*x] + Sin[2^-m*x]), {m, 0, 40}], {x, 0, 2*Pi}] - 1

EXAMPLE

2.3946498021251655592210031427120730939115471925612304123083093845833338...

MATHEMATICA

N[n - Sum[Cos[Pi/2^k], {k, 0, n}] /. n -> 300, 80] RealDigits[%, 10]

CROSSREFS

Decimal expansion of corresponding limiting ratio given by A120704.

Sequence in context: A093319 A160388 A026195 * A089206 A202017 A127198

Adjacent sequences:  A120700 A120701 A120702 * A120704 A120705 A120706

KEYWORD

cons,nonn

AUTHOR

Joseph Biberstine (jrbibers(AT)indiana.edu), Jun 28 2006

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 16 07:39 EST 2012. Contains 205881 sequences.