Whats a very simple sequential random number generators that doesn't produce a repeating pattern?

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I need a simple as possible deterministic random number generator from 0-N that I can chuck a number from 1-Infinity into and get a random number out of, without it the pattern repeating over and over again.
Is this even possible? If so what would be a simple example of one? It doesn't have to be safe in any way or have an especially good distribution.