Update: Now that everyone has had time to work on this problem by themselves, let's open up the floodgates and post your solution as a reply (or edit) to your comment. Let's see how many different ways the creative brains at Brilliant can approach this problem.
The following problem is a slight variant of Score!. Keep your answers to yourself, and only post how long (in minutes) it took you to do this problem.
In Calvinball, a player can score points in 3 different ways: 1 point for hitting your opponent with the ball, 5 points for capturing the flag, and 13 points for hitting Susie with the ball.
If Hobbes scored 3121 points in a game, how many different ways can this be achieved?
The order of the points scored doesn't matter, just the ways in which it is scored.