Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
1 / (16 * N[int (log base 2 of ((2+x)/(1+x)))^16 from 0 to infinity] )
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random