|
%I #16 Jul 22 2018 22:53:33
%S 1,-1,1,47,1,-13409,77441,19836879,-535288319,-139742075329,
%T -2263631905535,1157041164813423,85544399896958465,
%U -10251042205544240161,-896378013566768664703,524122354739233459190287
%N Expansion of E.g.f. cos(sin(sinh(x))), even powers only.
%H G. C. Greubel, <a href="/A009038/b009038.txt">Table of n, a(n) for n = 0..250</a>
%t With[{nn=30},Take[CoefficientList[Series[Cos[Sin[Sinh[x]]],{x,0,nn}],x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, Jul 31 2016 *)
%o (PARI) x='x+O('x^60); v=Vec(serlaplace(cos(sin(sinh(x))))); vector(#v\2,n,v[2*n-1]) \\ _G. C. Greubel_, Jul 22 2018
%K sign
%O 0,4
%A _R. H. Hardin_
%E Extended with signs by _Olivier Gérard_, Mar 15 1997
%E Prior Mathematica program replaced by _Harvey P. Dale_, Jul 31 2016
|
