%I #4 Feb 24 2012 12:51:18
%S 1,2,4,8,16,50,280,1640,8320,58850,628000,6283400,51414400,567708050,
%T 8930646400,126381905000,1426497280000,21409252621250,444950339392000,
%U 8140276707797000,117131784689920000
%N exp(arcsinh(x)+arcsin(x))=1+2*x+4/2!*x^2+8/3!*x^3+16/4!*x^4+50/5!*x^5...
%K nonn
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)