A012623 - OEIS

%I #4 Feb 24 2012 12:51:03

%S 2,-12,118,168,-314838,60653340,-12586913250,3145598341200,

%T -959740793965230,355199264316850500,-157666664319013951290,

%U 82936567630998372808440,-51114833501551851944029830

%N sin(arcsinh(x)*arctan(x))=2/2!*x^2-12/4!*x^4+118/6!*x^6+168/8!*x^8...

%K sign

%O 0,1

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