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A009285
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E.g.f.: exp(x + tanh(x)).
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0
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1, 2, 4, 6, 0, -32, -24, 640, 2176, -16832, -138496, 521216, 10367616, -8750336, -942458368, -2101041920, 102567493632, 621205094400, -12985904205824, -148249466093568, 1832574587011072, 36650477053591552, -266274589196877824, -9888178289857134592, 31088700594998902784
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{nn=30}, CoefficientList[Series[Exp[x+Tanh[x]], {x, 0, nn}], x] Range[ 0, nn]!] (* Harvey P. Dale, Aug 09 2020 *)
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PROG
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(PARI)
x='x+O('x^66);
Vec(serlaplace(exp(x + tanh(x))))
/* Joerg Arndt_, Sep 01 2012 */
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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