Some websites for numerical values of orbit of $x$ under $f$ in a dynamical system

Question

I don't know anything about programming. Is there some website to calculate the orbit of $x$ under $f$ in dynamical system?

For example, if $x_{n+1}=2x_n(1-x_n)$, how to a have a list of first many terms of ${\{x_n}\}$ without calculating one by one by calculator?

Thank you.

Answer 1

I found one website! Here it is.