A012719 - OEIS

%I #4 Feb 24 2012 12:51:05

%S 1,0,1,6,37,260,2365,24850,301033,4051848,60901145,1003420638,

%T 18072389069,352027414284,7390186076949,166110699895530,

%U 3983896292586577,101488729722338064,2737830394817774257

%N sec(arctanh(x)*exp(x))=1+1/2!*x^2+6/3!*x^3+37/4!*x^4+260/5!*x^5...

%K nonn

%O 0,4

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