The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A088189 E.g.f. : 1/(1-sinh(x)-x-x^2). 0
 2, 10, 73, 712, 8681, 127004, 2167789, 42287088, 928006801, 22628305012, 606939739253, 17759375280200, 562952693773081, 19217673118604172, 702899000556953437, 27422924828816762848, 1136746326170994466337 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS FORMULA a(n) ~ n!/((cosh(r)+1+2*r)*r^(n+1)), where r = 0.41010884430143... is the root of the equation r+r^2+sinh(r)=1. - Vaclav Kotesovec, Jun 27 2013 MATHEMATICA CoefficientList[Series[1/(1-Sinh[x]-x-x^2), {x, 0, 20}], x]* Range[0, 20]! (* Vaclav Kotesovec, Jun 27 2013 *) CROSSREFS Cf. A006154, A088181. Sequence in context: A224799 A275550 A243250 * A228609 A001395 A047853 Adjacent sequences:  A088186 A088187 A088188 * A088190 A088191 A088192 KEYWORD nonn AUTHOR Karol A. Penson, Sep 22 2003 STATUS approved

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

Last modified September 29 20:22 EDT 2020. Contains 337432 sequences. (Running on oeis4.)