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Search: id:A119268
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| A119268 |
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Number of infinite-dimensional partitions of n up to conjugacy. |
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+0
9
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| 1, 1, 1, 2, 4, 7, 14, 28, 58, 120, 260, 571, 1296, 2998, 7124
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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Partitions are considered as generalized Ferrers diagrams; any permutation of the axes produces a conjugate. An infinite-dimensional partition thus has infinitely many conjugates. However, an infinite-dimensional partition of n always has a conjugate of dimension at most n-2, so this sequence is always finite.
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CROSSREFS
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Cf. A119338, A118364, A118365.
Sequence in context: A119340 A119341 A119342 this_sequence A002989 A000671 A157133
Adjacent sequences: A119265 A119266 A119267 this_sequence A119269 A119270 A119271
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KEYWORD
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more,nonn
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AUTHOR
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Frank Adams-Watters (FrankTAW(AT)Netscape.net), May 11 2006
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EXTENSIONS
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More terms from Max Alekseyev (maxale(AT)gmail.com), May 16 2006
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