Spoilers, Spoilers Everywhere!

I’ve added a new plugin to this site to make it possible to post spoilers, like this:

What is the next number in this series?

1, 11, 21, 1211, 111221, 312211, … ?

[spoiler /Show Answer/ /Hide Answer/]13112221[/spoiler]

[spoiler /Show Solution/ /Hide Solution/]Start with 1. The string “1” has one “1” in it, so the next number is “11”  (one one). Now repeat the process with the new string: “11” has two ones in it, so the next number is “21” (two ones). The new string has one two and one one, so the next number is “1211”. And so forth.[/spoiler]

Here’s a short description of how to use the spoiler tags.

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ePeterso2

Who I Am ePeterso2I’m Eric Peterson, and my email address is epeterso2@puzzlehead.org. I’m a software engineer who lives in a suburb of Fort Lauderdale, Florida. I’ve enjoyed solving puzzles for years, and a few years ago I began constructing puzzles of my own. If you’re ever in Broward County and would like to get together some time, please send me a note by email and let me know. I love the opportunity to meet with other puzzleheads, especially if it involves lunch. Puzzle Testing I believe that the best way to make a puzzle even better is to ask someone else to solve it. You learn so much about how people think, how people approach your puzzle, pitfalls they may encounter, and outright errors in your construction by having someone else try it before you unleash it upon the world. If you’re a puzzle constructor, I would be honored to test your puzzle for you. Send me email with your puzzle or a link to it, and I’ll try solving it, as long as I have time available to do so. I’m a busy guy, so my time is limited … but I’m always open to a challenge. My Public Profiles * My Linked In profile * My Geocaching.com profile * My FloridaCaching.com profile Puzzles I’ve Written * Geocaching puzzles Puzzles I’ve Solved * Geocaching puzzles (solved and found) What Happened to ePeterso1? ePeterso1 was a horrible experiment gone wrong that had to be hunted down and killed before he claimed the lives of any more innocent victims. Most of the bugs that caused ePeterso1 to go haywire have been corectted in ePeterso2.

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