When n= 1, a2 = 2a1/2+a1= 2 *1/2+1= 2/3.
When n=2, A3 = 2a2/2+A2 = 2 * (2/3)/2+(2/3) =1/2 = 2/4.
When n=3, a4 = 2a3/2+a3 = 2 * (1/2)/2+(1/2) = 2/5.
When n=4, a5=2*(2/5)/2+(2/5)=2/6.
Guess an=2/(n+ 1)
2 when n= 1, 2 (1-kloc-0/) = 20 =1