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A009337
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Expansion of ln(1+sin(x))/exp(x).
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1
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0, 1, -3, 7, -16, 40, -117, 411, -1720, 8384, -46561, 289595, -1991504, 14993108, -122595085, 1081616659, -10239597968, 103522029312, -1113074512289, 12681693805203, -152613117638712, 1934275341388596, -25753344727083773
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| This sequence starting with the 2nd term, unsigned, is the partial sums of A000667. - Gerald McGarvey (Gerald.McGarvey(AT)comcast.net), Aug 13 2004
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MATHEMATICA
| Log[ 1+Sin[ x ] ]/Exp[ x ]
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CROSSREFS
| Cf. A000667.
Sequence in context: A103030 A001698 A029761 * A036567 A018023 A144977
Adjacent sequences: A009334 A009335 A009336 * A009338 A009339 A009340
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KEYWORD
| sign,easy
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net)
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EXTENSIONS
| Extended with signs Mar 15 1997 by Olivier Gerard.
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