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%I #4 Feb 24 2012 12:51:12
%S 1,-4,80,-4024,373376,-55810464,12218736768,-3690395100032,
%T 1469402675519488,-746064489482211840,470375829415840688128,
%U -360567791801354924107776,330231250494338680414994432
%N sech(arcsin(x)+sin(x))=1-4/2!*x^2+80/4!*x^4-4024/6!*x^6+373376/8!*x^8...
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)
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