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.
(7choose5)(4choose2)^5+(7choose4)(4choose2)^4(3choose2)(4choose1)^2+(7choose3)(4choose2)^3(4choose1)^4
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
