So, has anyone tried to calculate the number of 10 set combinations possible from the 18 possible card sets?
10 items out of 18, but each of the 18 numbers could be used twice EXCEPT for two of them (only once), and two others are mutually exclusive. Is there an easy formula for that?
It's in the range of 120 milliion. Each x2 objective can be treated as a seperate entity and add 1 of the mutally exclusive objectives. So that is 33C10. For the second mutally exclusive objective you calculate all the combinations it will be a part of, so reduce the set to 9 and the entities to 32. 32C9. Add them together and it comes up to a little over 120 million.