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A087903 Triangle read by rows of the numbers T(n,k) (n>1, 0<k<n) of set partitions of n of length k which do not have a proper subset of parts with a union equal to a subset {1,2,...,j} with j<n. +0
12
1, 1, 1, 1, 4, 1, 1, 11, 9, 1, 1, 26, 48, 16, 1, 1, 57, 202, 140, 25, 1, 1, 120, 747, 916, 325, 36, 1, 1, 247, 2559, 5071, 3045, 651, 49, 1, 1, 502, 8362, 25300, 23480, 8260, 1176, 64, 1, 1, 1013, 26520, 117962, 159736, 84456, 19404, 1968, 81, 1, 1, 2036, 82509, 525608 (list; table; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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