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A009183 Expansion of e.g.f.: cosh(x)/cosh(log(1+x)). 0

%I #14 Jun 21 2015 21:51:39

%S 1,0,0,3,-11,30,-14,-525,4593,-22428,17596,1039995,-13641275,96216978,

%T -105681666,-8517557685,148962722881,-1373978443800,1940315387608,

%U 198084321525267,-4330346354150859,49339565916861990,-85160442362115350

%N Expansion of e.g.f.: cosh(x)/cosh(log(1+x)).

%t With[{nn=30},CoefficientList[Series[Cosh[x]/Cosh[Log[1+x]],{x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, Aug 13 2012 *)

%K sign,easy

%O 0,4

%A _R. H. Hardin_

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

%E Definition clarified by _Harvey P. Dale_, Aug 13 2012

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Last modified July 22 09:51 EDT 2024. Contains 374490 sequences. (Running on oeis4.)