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A009042
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Expansion of x*cos(sin(x)), odd terms only.
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1
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1, -3, 25, -259, 4113, -89859, 2452905, -82466115, 3364642465, -162289204995, 9080010901689, -582825476943747, 42497355011746225, -3485070555315399171, 318706043315086782281, -32281156967340604488131
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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[{nmax = 62}, CoefficientList[Series[x*Cos[Sin[x]], {x, 0, nmax}], x]*Range[0, nmax - 1]!][[2 ;; ;; 2]] (* G. C. Greubel, Jul 23 2018 *)
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PROG
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(PARI) x='x+O('x^60); v=Vec(serlaplace(x*cos(sin(x)))); vector((#v-1)\2 , n, v[2*n-1]) \\ G. C. Greubel, Jul 23 2018
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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