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.
a(n) = a(n-2) + 8, a(1) =1, a(2) = 4
a(n) = a(n-2) + 8, a(1) =1, a(2) = 4
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
