@Hyperror @avantgame pretty sure it's (N-1)! So 9! If I'm wrong I blame lack of coffee..
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@avantgame@Hyperror I'm off by 10 ;)
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@avantgame isn't it a factorial?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@avantgame It's got to be 10! Consider n=3: {AaBbCc, AaBcCb, AbBcCa, AbBaCc, AcBaCb, AcBbCa}. - 1 more reply
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@avantgame 10(10-1)/2=90/2=45Thanks. Twitter will use this to make your timeline better. UndoUndo
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@avantgame Do they have to independently pick each other? Or do they decide "as a couple"?Thanks. Twitter will use this to make your timeline better. UndoUndo
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