Most contests have some type of question about recursive sequences. The most famous is the Fibonacci sequence. One video about the Fibonacci sequence is at [url]https://www.youtube.com/watch?v=SjSHVDfXHQ4[/url]. This question also involves the use of the greatest integer function. A video on this function is at [url]https://www.youtube.com/watch?v=8DLmNqqia9U[/url] .[br][br]Relay questions can come in many forms. They typically start with let T = TNYWR (The Number You Will Receive). The idea is you can do a lot of work on solving the problem before you know what T is. Then when you receive T from a teammate, you can finish up your problem and get your answer.[br][br]Relays appear on [url]mathleague.org[/url] High School competitions and on ARML, [url]www.arml.com[/url], competitions.