A009221 - OEIS

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A009221

Expansion of exp(sinh(tan(x))).

%I #8 Jan 27 2014 09:12:47

%S 1,1,1,4,13,68,373,2472,18649,152144,1433129,14034560,156563045,

%T 1799730624,23043285021,304857999232,4392102360241,65741679927552,

%U 1051530622359889,17551668357299200,308633929353801661

%N Expansion of exp(sinh(tan(x))).

%t Exp[ Sinh[ Tan[ x ] ] ]

%K nonn,easy

%O 0,4

%A _R. H. Hardin_

%E Extended and signs tested Mar 15 1997 by _Olivier Gérard_.