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%I #12 Jan 29 2018 15:28:55
%S 1,1,1,3,9,33,153,731,4273,25857,177489,1311379,10342137,89060065,
%T 800697641,7778778091,78896218081,849264442881,9587206592289,
%U 113234181108643,1403875965476969,18073465545032353,243412313149166137,3395124358886313595,49273184499900888465
%N Sum(a(n)*x^n/n!) = exp(sinh(sinh(x))).
%F E.g.f.: exp(sinh(sinh(x))).
%t Exp[ Sinh[ Sinh[ x ] ] ]
%o (PARI) vector(#t=Vec(exp(sinh(sinh(x)))),n,t[n]*(n-1)!) \\ _M. F. Hasler_, Jan 12 2013
%K nonn,easy
%O 0,4
%A _R. H. Hardin_
%E Extended and signs checked by _Olivier Gérard_, Mar 15 1997.
%E Better definition by _M. F. Hasler_, Jan 12 2013
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