%I A013193
%S A013193 1,1,4,15,93,633,5381,51506,565957,6922205,93992413,1398890284,
%T A013193 22689478823,398141898399,7519118564551,152056970221072,
%U A013193 3278894568674073,75103176871966409,1821102601528126265
%V A013193 1,-1,4,-15,93,-633,5381,-51506,565957,-6922205,93992413,-1398890284,
%W A013193 22689478823,-398141898399,7519118564551,-152056970221072,
%X A013193 3278894568674073,-75103176871966409,1821102601528126265
%N A013193 log(sec(x)+log(x+1))=x-1/2!*x^2+4/3!*x^3-15/4!*x^4+93/5!*x^5...
%Y A013193 Sequence in context: A076900 A081011 A008829 this_sequence A040025 A109365 
               A079128
%Y A013193 Adjacent sequences: A013190 A013191 A013192 this_sequence A013194 A013195 
               A013196
%K A013193 sign
%O A013193 0,3
%A A013193 Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)