By George Hutchinson
Communications of the ACM,
October 1963,
Vol. 6 No. 10, Pages 613-614
10.1145/367651.367661
Comments
The partitions of a set with n elements are represented by certain n-tuples of positive integers. Algorithms are described which generate without repetitions the n-tuples corresponding to: (1) all partitions of the given set, (2) all partitions of the given set into m or fewer sets (1 ≨ m ≨ n), and (3) all partitions of the given set into exactly m sets (1 ≨ m ≨ n).
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