login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A115184 Denominator of coefficient of x^(2n-1) in series of 3*sin(x)/(2+cos(x)). 1
1, 1, 180, 1512, 25920, 3991680, 849139200, 4311014400, 1600593426432000, 2146678242508800, 576213633515520000, 423033001181754163200, 3034801964999540736000000, 1329532289428370227200000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Identity Function
EXAMPLE
x - x^5/180 - x^7/1512 - x^9/25920 + x^11/3991680 + (269*x^13)/849139200 + ...
MATHEMATICA
Denominator[ CoefficientList[ Series[3Sin[x]/(2 + Cos[x]), {x, 0, 29}], x]] [[2Range@14]] (* Robert G. Wilson v, Jan 21 2006 *)
CROSSREFS
Cf. A115183.
Sequence in context: A225933 A225932 A081380 * A154672 A211556 A364162
KEYWORD
nonn,frac
AUTHOR
Eric W. Weisstein, Jan 15 2006
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 24 23:28 EDT 2024. Contains 373691 sequences. (Running on oeis4.)