login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

sinh(sinh(x)*sin(x))=2/2!*x^2+112/6!*x^6+10112/10!*x^10...
2

%I #12 Dec 15 2014 11:56:27

%S 2,112,10112,-17297408,-15034114048,164133555208192,55023491428646912,

%T -16342277967934744690688,148703244592249785068552192,

%U 6917318875805359573600621821952,-349192103360082371369402852240785408,-3233378223427683795744541104589701644288

%N sinh(sinh(x)*sin(x))=2/2!*x^2+112/6!*x^6+10112/10!*x^10...

%t With[{nn=60},Take[CoefficientList[Series[Sinh[Sinh[x]*Sin[x]],{x,0,nn}],x] Range[0,nn-2]!,{3,-1,4}]] (* _Harvey P. Dale_, Dec 15 2014 *)

%K sign

%O 0,1

%A Patrick Demichel (patrick.demichel(AT)hp.com)

%E More terms from _R. H. Hardin_

%E Edited by _N. J. A. Sloane_, May 31 2008 at the suggestion of R. J. Mathar.

%E More terms from and prior Mathematica program replaced by _Harvey P. Dale_, Dec 15 2014