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Level 18

Combinatorics II


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n to the power of k (balls and boxes)
n to the k falling (balls and boxes)
n+k-1 choose k (balls and boxes)
n choose k (balls and boxes)
k-1 choose n-1 (balls and boxes)
Multinomial coefficient (of n and the k_i)
n to the power of k (urn model)
n to the k falling (urn model)
n+k-1 choose k (urn model)
n choose k (urn model)
n+k-1 choose k (set theoretic)
n choose k (set theoretic)