n=10

> n:=10;
RHS:=Product(x^(2^i)+1,i=0..n);
RHS:=value(%);
LHS:=Sum(x^i,i=0..2^(n+1)-1);
st:=time():
LHS_RHS:=normal(expand(value(LHS-RHS)));
TIME[LHS_minus_RHS]:=(time()-st)/60.*min;

[Maple Math]

[Maple Math]

[Maple Math]
[Maple Math]

[Maple Math]

[Maple Math]

[Maple Math]

>

The processor evaluating this program was Pentium III processer 450MHz Sony Vio PCV-L510/BP