As many roulette players know, European and American roulette are the two most widely-played versions of the game. And one very interesting fact about these two roulette games is that they are separated by just one number on the wheel. European roulette has 37 numbers on its wheel, while the American roulette wheel has 38 numbers, with 00 being the lone difference.

Seeing as how European and American roulette both have varying amounts of numbers, the number sequences on their wheels are different too. This being said, here is a look at the different number sequences for each wheel.

European Roulette Number Sequence: 0-32-15-19-4-21-2-25-17-34-6-27-13-36-11-30-8-23-10-5-24-16-33-1-20-14-31-9-22-18-29-7-28-12-35-3-26

American Roulette Number Sequence: 0-28-9-26-30-11-7-20-32-17-5-22-34-15-3-24-36-13-1-00-27-10-25-29-12-8-19-31-18-6-21-33-16-4-23-35-14-2

One interesting thing about the American roulette wheel is that the 0 and 00 are on opposite ends from each other. It’s also worth mentioning that both roulette wheels are mixed and matched in a strange fashion.

Here are some other cool facts about the numbers on European and American roulette wheels.

– The sum of the main roulette numbers (1-36) add up to 666 on both wheels. In Christianity, the Book of Revelations says that 666 is the “Number of the Beast,” which is loosely associated with the end of the world and/or Satan. It’s legend that François Blanc, who invented the European roulette wheel along with his brother Louis, made a deal with the devil to obtain his wheel design.

– With the numbers 1-10 and 19-28, the even numbers are black, while the odd numbers are red. Interestingly enough, things change with the numbers 11-18 and 29-36 since even numbers are red, and the odd numbers are black.

– Most roulette tables feature the wheel at one end of the table, and the numbers layout cover the rest of the table. However, there are a few roulette setups in Monte Carlo casinos where the wheel is in the middle of the table, and the numbers layout is on either side of the wheel.

– The concept of the roulette wheel was first developed by French mathematician Blaise Pascal in the middle of the 17th century. What’s really fascinating about this is that Pascal wasn’t even trying to create anything related to gambling, but rather a perpetual motion device. After he created the rudimentary roulette wheel, the concept has since been polished up, and turned into the roulette wheel we know today.