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A009247
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Expansion of exp(tan(x)*cosh(x)).
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0
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1, 1, 1, 6, 21, 92, 597, 3472, 26537, 209488, 1834249, 17750304, 180938109, 2024471360, 23781199197, 300235771648, 3989919982673, 56114783183104, 830092069266577, 12879188611161600, 209479116176732901, 3554985326516636672
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OFFSET
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0,4
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LINKS
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MATHEMATICA
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CoefficientList[Series[Exp[Tan[x]*Cosh[x]], {x, 0, 20}], x]Range[0, 20]! (* Harvey P. Dale, Jul 25 2011 *)
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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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