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A004332
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Binomial coefficient C(4n,n-2).
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2
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1, 12, 120, 1140, 10626, 98280, 906192, 8347680, 76904685, 708930508, 6540715896, 60403728840, 558383307300, 5166863427600, 47855699958816, 443643407165376, 4116305022165108, 38223742100828400, 355214207837288800
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,2
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REFERENCES
| M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 828.
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 2..200
M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
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FORMULA
| G.f.: g*(g-1)^2/(4-3*g) where g = 1+x*g^4 is the g.f. of A002293. - Mark van Hoeij, Nov 17 2011
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MATHEMATICA
| Table[Binomial[4n, n-2], {n, 2, 20}] (* From Harvey P. Dale, Apr 11 2011 *)
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CROSSREFS
| Sequence in context: A012273 A008465 A115902 * A129329 A129332 A004291
Adjacent sequences: A004329 A004330 A004331 * A004333 A004334 A004335
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KEYWORD
| nonn,easy,changed
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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