%I A009812
%S A009812 0,2,8,48,384,18944,2364416,271337472,29986947072,3404290850816,
%T A009812 424605895884800,64805172535099392,13431502292801028096,
%U A009812 3690128527895627300864,1195824827744772864081920
%N A009812 Expansion of tanh(tan(x))*tan(x).
%t A009812 Tanh[ Tan[ x ] ]*Tan[ x ] (* Even Part *)
%Y A009812 Sequence in context: A124453 A000165 A109664 this_sequence A063075 A112541 
               A052667
%Y A009812 Adjacent sequences: A009809 A009810 A009811 this_sequence A009813 A009814 
               A009815
%K A009812 nonn
%O A009812 0,2
%A A009812 R. H. Hardin (rhhardin(AT)att.net)
%E A009812 Extended and signs tested Mar 15 1997 by Olivier Gerard.