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.
g(n+2)=2g(n+1)+g(n), g(0)=0 , g(1)=1
g(n+2)=2g(n+1)+g(n), g(0)=0 , g(1)=1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
