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%I #12 Apr 02 2017 15:36:48
%S 0,1,-8,211,-11108,985501,-132845558,25350487891,-6508214949608,
%T 2163722040149881,-904419413432969258,464250155924655691471,
%U -287099441049791660680508,210529197284459655378072661,-180624991973581098090900739358,179251232453786124708955804893451
%N Expansion of log(1+tanh(x)*sinh(x))/2.
%t Log[ 1+Tanh[ x ]*Sinh[ x ] ]/2 (* Even Part *)
%Y Cf. A009397.
%K sign
%O 0,3
%A _R. H. Hardin_
%E Extended with signs Mar 1997
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