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A173411
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Number of three-choice polygons by half-perimeter
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0
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4, 12, 42, 152, 562, 2108, 7986, 30476, 116950, 450756, 1743470, 6763152, 26299104, 102478208, 400032822, 1563985172, 6122945694, 23999991452, 94173327894, 369881810616, 1454036828992, 5720448937528, 22521468585822, 88725551176384
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refs;
listen;
history;
text;
internal format)
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OFFSET
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2,1
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COMMENTS
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Generating function is the solution of a Fuchsian ODE of order 8.
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REFERENCES
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A. R. Conway, A. J. Guttmann and M. Delest, Math. Comput. Modelling, 26 (1997), 51-58.
A. J. Guttmann and I. Jensen. Sem. Lothar. Combin., 54 (2006), B54c (14pp).
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Iwan Jensen (I.Jensen(AT)ms.unimelb.edu.au), Feb 17 2010
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STATUS
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approved
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