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Search: id:A068604
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| A068604 |
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Number of distinct coefficients in expansion related to enumeration of permutations of length n by length of longest subsequence. |
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+0
1
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OFFSET
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1,3
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REFERENCES
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J. M. Hammersley, A few seedings of research, in Proc. Sixth Berkeley Sympos. Math. Stat. and Prob., ed. L. M. le Cam et al., Univ. Calif. Press, 1972, Vol. I, pp. 345-394.
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CROSSREFS
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Sequence in context: A017915 A114702 A026768 this_sequence A014868 A029463 A018721
Adjacent sequences: A068601 A068602 A068603 this_sequence A068605 A068606 A068607
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Mar 29 2002
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