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Search: id:A115184
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| A115184 |
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Denominator of coefficient of x^(2n-1) in series of 3Sin[x]/(2+Cos[x]). |
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+0
2
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| 1, 1, 180, 1512, 25920, 3991680, 849139200, 4311014400, 1600593426432000, 2146678242508800, 576213633515520000, 423033001181754163200, 3034801964999540736000000, 1329532289428370227200000
(list; graph; listen)
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OFFSET
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1,3
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LINKS
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Eric Weisstein's World of Mathematics, Identity Function
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EXAMPLE
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x - x^5/180 - x^7/1512 - x^9/25920 + x^11/3991680 + (269*x^13)/849139200 + ...
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MATHEMATICA
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Denominator[ CoefficientList[ Series[3Sin[x]/(2 + Cos[x]), {x, 0, 29}], x]] [[2Range@14]] (from Robert G. Wilson v (rgwv(at)rgwv.com), Jan 21 2006)
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CROSSREFS
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Cf. A115183.
Sequence in context: A032774 A032776 A081380 this_sequence A099106 A112068 A058835
Adjacent sequences: A115181 A115182 A115183 this_sequence A115185 A115186 A115187
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KEYWORD
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nonn,frac
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Jan 15, 2006
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