%I A009370
%S A009370 0,1,1,7,20,125,721,5731,49440,505529,5716921,72560255,1009426340,
%T A009370 15366052533,253286287801,4501151653979,85717611666720,
%U A009370 1742059862631537,37625735499057361,860703388428813303
%V A009370 0,1,-1,7,-20,125,-721,5731,-49440,505529,-5716921,72560255,-1009426340,
%W A009370 15366052533,-253286287801,4501151653979,-85717611666720,
%X A009370 1742059862631537,-37625735499057361,860703388428813303
%N A009370 Expansion of ln(1+tan(x))*cosh(x).
%t A009370 Log[ 1+Tan[ x ]]*Cosh[ x ]
%Y A009370 Sequence in context: A047862 A048755 A055267 this_sequence A009372 A051102 
               A158280
%Y A009370 Adjacent sequences: A009367 A009368 A009369 this_sequence A009371 A009372 
               A009373
%K A009370 sign,easy
%O A009370 0,4
%A A009370 R. H. Hardin (rhhardin(AT)att.net)
%E A009370 Extended with signs Mar 15 1997 by Olivier Gerard.