%I A012116
%S A012116 1,1,9,113,6993,171777,45264153,412458993,1241225427105,
%T A012116 81335384742015,102955176831541545,22142143528417205775,
%U A012116 20775502075935299781105,8945394343172069982368895
%V A012116 1,1,9,113,6993,171777,45264153,412458993,1241225427105,
%W A012116 -81335384742015,102955176831541545,-22142143528417205775,
%X A012116 20775502075935299781105,-8945394343172069982368895
%N A012116 sinh(arcsin(arcsinh(x)))=x+1/3!*x^3+9/5!*x^5+113/7!*x^7+6993/9!*x^9...
%Y A012116 Sequence in context: A156949 A155624 A165224 this_sequence A157551 A157570 
               A157233
%Y A012116 Adjacent sequences: A012113 A012114 A012115 this_sequence A012117 A012118 
               A012119
%K A012116 sign
%O A012116 0,3
%A A012116 Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)