I think n = 5, 5! = 120. But "_B_I" is the same as "_I_B" and should be removed from count.
I'm trying to find a formula to find the number of possible results.
Order matters and no reputation. Looking for all unique possibilities.
NAME (THIS NEVER CHANGES AND CAN BE IGNORED)
I tried to write them all out and i think there is 14?
help would be great.