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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A013094 tan(arcsinh(x)+tan(x))=2*x+17/3!*x^3+617/5!*x^5+48303/7!*x^7... 1
 2, 17, 617, 48303, 6522881, 1347329463, 394859190065, 155788454490063, 79615692221453953, 51158770289333605479, 40370803594653993695153, 38380940325618664357898303, 43267817873570429233783437313 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vaclav Kotesovec, Table of n, a(n) for n = 0..200 FORMULA Limit n->infinity (a(n)/(2*n+1)!)^(1/(2*n+1)) = 1.37072091851392158... - Vaclav Kotesovec, Nov 01 2013 MATHEMATICA With[{nn=30}, Take[CoefficientList[Series[Tan[ArcSinh[x]+Tan[x]], {x, 0, nn}], x] Range[ 0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, May 01 2013 *) CROSSREFS Sequence in context: A007759 A062710 A012939 * A013063 A012992 A054867 Adjacent sequences: A013091 A013092 A013093 * A013095 A013096 A013097 KEYWORD nonn AUTHOR Patrick Demichel (patrick.demichel(AT)hp.com) 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.

Last modified September 27 13:22 EDT 2023. Contains 365691 sequences. (Running on oeis4.)