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Number of possible meetings in a 20-person company
“The greatest shortcoming of the human race is our inability to understand the exponential function.” — Al Bartlett
General Formula:
In this case we deviate from the general formula ∑k=1n(nck)=2^n−1 by also subtracting an additional nc1(20c1), since there are no meetings of one.
So 2^20 - 1 - 20c1 = 1,048,555
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