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A268567
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Arises in counting maps on a surface: see Coquereaux-Zuber (2015) for precise definition.
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1
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OFFSET
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1,2
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LINKS
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R. Coquereaux, J.-B. Zuber, Maps, immersions and permutations, arXiv preprint arXiv:1507.03163, 2015. Also J. Knot Theory Ramifications 25, 1650047 (2016), DOI: http://dx.doi.org/10.1142/S0218216516500474
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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STATUS
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approved
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