A013485 - OEIS

%I #4 Feb 24 2012 12:51:31

%S -4,60,-1384,50520,-3441964,401162580,-63557233744,12220394184240,

%T -2791952278560724,763176800730283500,-250643745125452446904,

%U 98116093958813794548360,-45044453508933100607756284

%N tan(cos(x)-sech(x))=-4/4!*x^4+60/6!*x^6-1384/8!*x^8+50520/10!*x^10...

%K sign

%O 0,1

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