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Search: id:A115183
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| A115183 |
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Numerator 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, 0, -1, -1, -1, 1, 269, 157, 3277817, -49397, -10365557, -847243693, -328990404361, 2359554667, 13521593667734879, 3119353059383129, 10406829533213819, -22913020177568301829, -1190728098581644927239161, -577358636244139725973
(list; graph; listen)
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OFFSET
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1,7
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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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Numerator[ CoefficientList[ Series[3Sin[x]/(2 + Cos[x]), {x, 0, 41}], x]] [[2Range@20]] (from Robert G. Wilson v (rgwv(at)rgwv.com), Jan 21 2006)
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CROSSREFS
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Cf. A115184.
Sequence in context: A049014 A062037 A096613 this_sequence A073522 A073026 A142636
Adjacent sequences: A115180 A115181 A115182 this_sequence A115184 A115185 A115186
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KEYWORD
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sign,frac
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AUTHOR
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Eric Weisstein (eric(AT)weisstein.com), Jan 15, 2006
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