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sech(sec(x)*sinh(x))=1-1/2!*x^2-11/4!*x^4-37/6!*x^6+7145/8!*x^8...
0

%I #4 Feb 24 2012 12:51:09

%S 1,-1,-11,-37,7145,450711,-3070179,-4923539597,-586954253103,

%T 57287087552943,41119408518068293,5965331366096594059,

%U -2749345524263504663367,-1905635088547220040309433

%N sech(sec(x)*sinh(x))=1-1/2!*x^2-11/4!*x^4-37/6!*x^6+7145/8!*x^8...

%K sign

%O 0,3

%A Patrick Demichel (patrick.demichel(AT)hp.com)