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A013551
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Numerator of [x^n] in the Taylor expansion exp(cot(x)-coth(x))= 1-2*x/3 +2x^2/9 -4*x^3/81 +2*x^4/243 -136*x^5/25515 +676*x^6/229635 -...
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1, -2, 2, -4, 2, -136, 676, -656, 62, -47672, 2714132, -3091664, 7223932, -16788784, 120994136, -15764283616, 13831453742, -3729134588968, 463898158095404, -119174509180016
(list; graph; refs; listen; history; internal format)
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