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+1)=(2b-2n+1)a(n)-((b-n+1)^2+c^2)a(n-1), a(0)=1, a(1)=b
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random