How many compounds can Oxygen create?

Uranium Oxide: One of the rare compounds of Oxygen

The question that how may compounds Oxygen can make is almost impossible to find out. Suppose you have a periodic table, and you can see all the elements in it. Now try pairing up each of these elements with Oxygen and see if actually a compound like that exists. For example- suppose you choose calcium and pair it up with Oxygen, making a compound that may sound like Calcium-oxide. Now, if you research, you will find out that a compound like that actually exists. Almost all the elements in the periodic table can pair up with oxygen. Even the most rarest of element like Neodymium, can pair up with Oxygen and form the compound Neodymium sesquioxide or ND2O3. Oxygen can literally pair up with everything. That's one of the many unique characteristics of Oxygen.

Neodymium sesquioxide