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A124087
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9th column of Catalan triangle A009766.
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0
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1430, 4862, 11934, 25194, 48450, 87210, 149226, 245157, 389367, 600875, 904475, 1332045, 1924065, 2731365, 3817125, 5259150, 7152444, 9612108, 12776588, 16811300, 21912660, 28312548, 36283236, 46142811, 58261125, 73066305, 91051857, 112784399, 138912059
(list; graph; refs; listen; history; internal format)
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OFFSET
| 15,1
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FORMULA
| a(n)=C(n,8)-C(n,6).
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MAPLE
| [seq(binomial(n, 8)-binomial(n, 6), n=15..45)];
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MATHEMATICA
| CoefficientList[Series[(429*z^7 - 3432*z^6 + 11880*z^5 - 23100*z^4 + 27300*z^3 - 19656*z^2 + 8008*z - 1430)/(z - 1)^9, {z, 0, 100}], z] (* From Vladimir Joseph Stephan Orlovsky, Jul 16 2011 *)
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CROSSREFS
| Cf. A009766
Sequence in context: A156853 A094230 A060364 * A064305 A147695 A151996
Adjacent sequences: A124084 A124085 A124086 * A124088 A124089 A124090
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KEYWORD
| easy,nonn
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AUTHOR
| Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 25 2006
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