A proof of Julian West's conjecture that the number of two-stack-sortable permutations of length \(n\) is \(2(3n)\)!/(\((n+1)\)!\((2n+1)\)!) (Q1193435)
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scientific article; zbMATH DE number 64625
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A proof of Julian West's conjecture that the number of two-stack-sortable permutations of length \(n\) is \(2(3n)\)!/(\((n+1)\)!\((2n+1)\)!) |
scientific article; zbMATH DE number 64625 |
Statements
A proof of Julian West's conjecture that the number of two-stack-sortable permutations of length \(n\) is \(2(3n)\)!/(\((n+1)\)!\((2n+1)\)!) (English)
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27 September 1992
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Julian West's conjecture
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two-stack-sortable permutations
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weight enumeration
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