Create random numbers without repeat

I have a ball that is created every 1 sec. and I would like that the numbers on the balls don't repeat.

The numbers are:

int(random(2,40))

How can I do that????

Try this plugin, you could even assign the weight of each number.

The capx doesn't open. There is a missed plugin. :(

Tatiana Conde

You need download this plugin. The download link is at the top of this post.

I got the "function" plug in that was missed. But I don't know how to makes its work on my project.

I just want to not repeat my numbers. They are a math expressions.

Tatiana Conde

This Capx was to generate 10 numbers from 2 to 40 without repeating. (You need to use int() to transfer pattern string to number if necessary)

You need to download patterngen plugin again.