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.
plot[y=C(n,3)*5^(n-3)/6^(n+1),{n,1,99}]
plot[y=C(n,3)*5^(n-3)/6^(n+1),{n,1,99}]
Natural Language
Math Input
Extended Keyboard