A013345 - OEIS

%I #4 Feb 24 2012 12:51:27

%S 2,8,226,6544,597346,67805528,12188457282,2727880967200,

%T 796141697431618,286025228357713576,126058973689765963298,

%U 66521439788693954540976,41531178576953648181886626

%N -arctan(sin(x)-arcsin(x))=2/3!*x^3+8/5!*x^5+226/7!*x^7+6544/9!*x^9...

%K nonn

%O 0,1

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