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.
(summation of N! * (52 - N)!* (26 choose N) * 2^N/52! from N=0 to 26
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random