Number of k-combinations For All k
See also: Binomial coefficient#Sum of coefficients rowThe number of k-combinations for all k, is the sum of the nth row (counting from 0) of the binomial coefficients. These combinations are enumerated by the 1 digits of the set of base 2 numbers counting from 0 to, where each digit position is an item from the set of n.
Read more about this topic: Combination
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