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A009271 Expansion of exp(tanh(x)*sinh(x)). 1

%I #14 Apr 01 2017 13:37:20

%S 1,2,8,62,968,9962,557108,-202018,851334128,16341130322,

%T -6757456189972,2480221403307782,-678177401929552792,

%U 194099813539570880762,-58073452241962644117532,18437894946039087568249262

%N Expansion of exp(tanh(x)*sinh(x)).

%t With[{nn=30},Take[CoefficientList[Series[Exp[Tanh[x]Sinh[x]],{x,0,nn}], x] Range[0,nn]!,{1,-1,2}]] (* _Harvey P. Dale_, Mar 16 2013 *)

%K sign

%O 0,2

%A _R. H. Hardin_

%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)