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A003456
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Number of dissections of a polygon.
(Formerly M1509)
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0
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1, 2, 5, 17, 62, 275, 1272, 6225, 31075, 158376, 816229, 4251412, 23319056, 117998524, 627573216, 3355499036, 18025442261, 97239773408, 526560862829
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,2
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REFERENCES
| P. Lisonek, Closed forms for the number of polygon dissections. Journal of Symbolic Computation 20 (1995), 595-601.
R. C. Read, On general dissections of a polygon, Aequat. Math. 18 (1978), 370-388.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A112832 A148415 A148416 * A109084 A090902 A150012
Adjacent sequences: A003453 A003454 A003455 * A003457 A003458 A003459
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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