(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)*2
=(1-1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)*2
=(1-1/2^32)*2
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)*2
=(1-1/2^2)(1+1/2^4)(1+1/2^8)(1+1/2^16)*2
=(1-1/2^32)*2