Um... Ithinkthe exercise is asking for the number of games played, assuming that each of the sixteen teams plays each of the other teams twice.

It might be simpler to think about how many games would be played if each team plays each of the other teamsonce, and then double the result...? The exercise then reduces, I believe, toThe Handshake Problem: how many games ("handshakes") will there be if each team ("person") plays ("shakes the hand of") every other team ("person")?