Search: id:A009599
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%I A009599
%S A009599 0,1,2,5,20,117,782,5441,39496,306921,2602682,24116413,241121564,
%T A009599 2561633245,28613237382,334511450617,4089814554384,52302564139985,
%U A009599 699179303859698,9751200460426357,141494250613386916
%N A009599 Expansion of sinh(sinh(x).exp(x)).
%F A009599 a(n) = Sum_{k=0..n} Stirling2(n, k)*(1-(-1)^k)/2*2^(n-k). - Vladeta Jovovic 
               (vladeta(AT)eunet.rs), Sep 26 2003
%t A009599 Sinh[ Sinh[ x ]*Exp[ x ] ]
%Y A009599 Cf. A065143.
%Y A009599 Sequence in context: A127065 A052850 A000130 this_sequence A112833 A144503 
               A012321
%Y A009599 Adjacent sequences: A009596 A009597 A009598 this_sequence A009600 A009601 
               A009602
%K A009599 nonn,easy
%O A009599 0,3
%A A009599 R. H. Hardin (rhhardin(AT)att.net)
%E A009599 Extended and signs tested Mar 15 1997 by Olivier Gerard.

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