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A006634
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From generalized Catalan numbers.
(Formerly M4648)
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1
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1, 9, 72, 570, 4554, 36855, 302064, 2504304, 20974005, 177232627, 1509395976, 12943656180, 111676661460, 968786892675, 8445123522144, 73940567860896, 649942898236596
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| H. M. Finucan, Some decompositions of generalized Catalan numbers, pp. 275-293 of Combinatorial Mathematics IX. Proc. Ninth Australian Conference (Brisbane, August 1981). Ed. E. J. Billington, S. Oates-Williams and A. P. Street. Lecture Notes Math., 952. Springer-Verlag, 1982.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| Plouffe, Simon, Master Thesis, copy at the arXiv site
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FORMULA
| 4F3([9/4, 5/2, 11/4, 3],[10/3, 11/3, 4],256/27*x), Simon Plouffe, Master Thesis, UQAM, 1992.
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CROSSREFS
| Sequence in context: A084327 A057085 A076765 * A129328 A162960 A163391
Adjacent sequences: A006631 A006632 A006633 * A006635 A006636 A006637
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KEYWORD
| nonn
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AUTHOR
| Simon Plouffe (simon.plouffe(AT)gmail.com)
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