%I A013544
%S A013544 1,0,7,3,2101,538,9598,358770,5412633284,757790106,28633556265321,
%T A013544 3921506901899,399181576270198,41250320267640406
%V A013544 -1,0,-7,3,-2101,538,-9598,358770,-5412633284,757790106,
%W A013544 -28633556265321,3921506901899,-399181576270198,41250320267640406
%N A013544 tanh(cosec(x)-cotanh(x))=-x-7/5!*x^5+3/7!*x^7-2101/9!*x^9...
%Y A013544 Sequence in context: A054471 A086453 A112099 this_sequence A013540 A110792 
               A093825
%Y A013544 Adjacent sequences: A013541 A013542 A013543 this_sequence A013545 A013546 
               A013547
%K A013544 sign
%O A013544 0,3
%A A013544 Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)