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A115275
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Number of partitions of {1,...,n} into blocks such that no block size is repeated more than 3 times.
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2
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1, 1, 2, 5, 14, 51, 187, 820, 3670, 18191, 97917, 554500, 3334465, 20871592, 138440031, 972083845, 6985171390, 52194795327, 412903730293, 3313067916192, 28017395030419, 241504438776956, 2189375704925081, 19771679215526507
(list; graph; refs; listen; history; internal format)
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