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A010968
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Binomial coefficient C(n,15).
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4
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1, 16, 136, 816, 3876, 15504, 54264, 170544, 490314, 1307504, 3268760, 7726160, 17383860, 37442160, 77558760, 155117520, 300540195, 565722720, 1037158320, 1855967520, 3247943160, 5567902560
(list; graph; refs; listen; history; internal format)
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OFFSET
| 15,2
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COMMENTS
| a(n) = -A110555(n+1,15). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 27 2005
In this sequence there are no primes - Artur Jasinski (grafix(AT)csl.pl), Dec 02 2007
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LINKS
| Milan Janjic, Two Enumerative Functions
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FORMULA
| a(n+14)=n(n+1)(n+2)(n+3)(n+4)(n+5)(n+6)(n+7)(n+8)(n+9)(n+10)(n+11)(n+12)(n+13)(n+14)/15! - Artur Jasinski (grafix(AT)csl.pl), Dec 02 2007, R. J. Mathar, Jul 07 2009
Gf.: x^15/(1-x)^16. [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Aug 06 2008, R. J. Mathar, Jul 07 2009]
a(n) = n/(n-15) * a(n-1), n>15. - Vincenzo Librandi, Mar 26 2011
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MAPLE
| seq(binomial(n, 15), n=15..37); [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Aug 06 2008]
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MATHEMATICA
| Table[Binomial[n, 15], {n, 15, 50}] (* From Vladimir Joseph Stephan Orlovsky, Apr 22 2011 *)
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PROG
| (MAGMA) [ Binomial(n, 15): n in [15..70]]; - Vincenzo Librandi, Mar 26 2011
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CROSSREFS
| Cf. A000581.
Sequence in context: A187175 A059421 A162636 * A022581 A114182 A048533
Adjacent sequences: A010965 A010966 A010967 * A010969 A010970 A010971
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Some formulas adjusted to the offset by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 07 2009
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