A012373 - OEIS

%I #4 Feb 24 2012 12:50:48

%S 1,0,12,120,12432,680640,102772032,14295765120,3342487648512,

%T 854980598876160,298224965387983872,119257847834622351360,

%U 59074248780911484506112,33687669462151354934968320

%N sec(tan(x)*sin(x))=1+12/4!*x^4+120/6!*x^6+12432/8!*x^8...

%K nonn

%O 0,3

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