fit 1, 2, 2, 4, 8, 14, 23, 36, 53, 74, 102, 135, 174, 221, 276, 339

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.