Flexagons Lead to a Catalan Number Identity

DOI10.4169/AMER.MATH.MONTHLY.119.05.415zbMATH Open1259.05002DBLPjournals/tamm/Callan12OpenAlexW2399010359WikidataQ58300081 ScholiaQ58300081MaRDI QIDQ4908532

David Callan

Publication date: 6 March 2013

Published in: The American Mathematical Monthly (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4169/amer.math.monthly.119.05.415

zbMATH Keywords

Catalan numbersnumber of descentsHexaflexagonspatsrecursively defined permutations

Mathematics Subject Classification ID

Exact enumeration problems, generating functions (05A15) Permutations, words, matrices (05A05) Combinatorics (educational aspects) (97K20)

Related Items (1)

The V-flex, Triangle Orientation, and Catalan Numbers in Hexaflexagons

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