Extended pattern avoidance (Q1348148)
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scientific article; zbMATH DE number 1741709
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Extended pattern avoidance |
scientific article; zbMATH DE number 1741709 |
Statements
Extended pattern avoidance (English)
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15 May 2002
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Using some properties and refinements of the Catalan numbers, the author gives a sequence of refinements on the enumeration of permutations avoiding patterns of length 3.
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Catalan numbers
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sequence
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avoiding patterns
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