No. GRE does not give you any sort of formulas or cheat sheets. You will have to memorize any such formulas beforehand. You cannot bring any sort of paper or “help material” with you. In case you have any such material, ETS will cancel your test. You cannot even bring your calculator. Only a digital calculator (on-screen) will be available on the computer you are taking the test on.
The best way to make sure that you don’t forget important formulas on test day is to practice extensively every day for a couple of months. Make use of practice books such as “Manhattan’s 5lb book” and “ETS’ Official GRE Guides.” The more you practice, the easier it will be for you to remember all the formulas and theorems.