%I A013543
%S A013543 1,0,0,2,1078,366,5270,234137,3306664031,534743666,20542552037016,
%T A013543 3273200688729,355025065641454,43004969702632110
%V A013543 -1,0,0,2,-1078,366,-5270,234137,-3306664031,534743666,
%W A013543 -20542552037016,3273200688729,-355025065641454,43004969702632110
%N A013543 arcsinh(cosec(x)-cotanh(x))=-x+2/7!*x^7-1078/9!*x^9+366/11!*x^11...
%Y A013543 Sequence in context: A159858 A108963 A152510 this_sequence A039951 A135618 
               A119554
%Y A013543 Adjacent sequences: A013540 A013541 A013542 this_sequence A013544 A013545 
               A013546
%K A013543 sign
%O A013543 0,4
%A A013543 Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)