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A013371
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Expansion of tan(sinh(x)-sin(x)) = 2/3!*x^3 + 2/7!*x^7 + 4480/9!*x^9 + 2/11!*x^11 + ...
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0
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0, 2, 0, 2, 4480, 2, 274560, 717516802, 20650240, 397299302402, 1260764869707520, 211694311628802, 3189730834295158400, 12098583209553471488002, 6723227372694939050880
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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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nn = 20; Table[(CoefficientList[Series[-Tan[Sin[x] - Sinh[x]], {x, 0, 2*nn+1}], x] * Range[0, 2*nn+1]!)[[n]], {n, 2, 2*nn, 2}] (* Vaclav Kotesovec, Feb 06 2015 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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EXTENSIONS
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STATUS
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approved
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