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A009735
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Expansion of tan(x)*exp(sin(x)).
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0
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0, 1, 2, 5, 8, 21, 48, 377, 1728, 13129, 61184, 537965, 3107840, 34399197, 235484928, 2946509729, 22794670080, 323564702737, 2824580218880, 44888950379477, 435346731352064, 7640931012615717, 81496599519363072
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) ~ n! * ((-1)^(n+1)*exp(-1) + exp(1)) * (2/Pi)^(n+1). - Vaclav Kotesovec, Jan 23 2015
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MATHEMATICA
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Tan[ x ]*Exp[ Sin[ x ] ]
CoefficientList[Series[E^Sin[x]*Tan[x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Jan 23 2015 *)
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CROSSREFS
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KEYWORD
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nonn,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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