2 * (binomial(104, 8) + 6 * binomial(104, 7)+ 15 * binomial(103, 7) + 6 * 15 * binomial(103, 6) + 15 * 14 * binomial(102, 6) + 6 * 15 * 14 * binomial(102, 5))

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.