%I A013126
%S A013126 1,0,4,6,19,140,814,5082,43509,400248,3812904,42180270,520553895,
%T A013126 6701464068,92507196786,1398195467970,22513722221865,380979724310896,
%U A013126 6839735642061708,130277805146941014,2608035840379343995
%V A013126 1,0,4,-6,19,-140,814,-5082,43509,-400248,3812904,-42180270,
%W A013126 520553895,-6701464068,92507196786,-1398195467970,22513722221865,
%X A013126 -380979724310896,6839735642061708,-130277805146941014
%N A013126 cosh(tanh(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+19/4!*x^4-140/5!*x^5...
%Y A013126 Sequence in context: A110391 A001683 A053892 this_sequence A012969 A057789 
               A123169
%Y A013126 Adjacent sequences: A013123 A013124 A013125 this_sequence A013127 A013128 
               A013129
%K A013126 sign
%O A013126 0,3
%A A013126 Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)