Since http://www.smorgasbordet.com/pellesc/ seems to be offline, you can find the Download of Pelles C here in this Forum.
Now, you might be wondering, "But why 13?" Well, my friends, 13 is a prime number, and prime numbers are like the VIPs of the numerical world. They don't mingle easily, and when they do, they create magic.13 was traditionally considered a lucky number in France prior to the First World War, and was used in numerical form as a good luck symbol on postcards and charms.