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Search: id:A045689
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| A045689 |
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Denominators of expansion of tan(sin(x))-sin(tan(x)). |
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+0
12
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| 1, 1, 1, 30, 756, 75600, 7392, 54486432000, 4358914560, 1905468364800, 7602818775552000, 6690480522485760000, 4616431560515174400000, 226851446883715670016000000, 127036810254880775208960000, 2210440498434925488635904000000, 646080179971122507107008512000000
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OFFSET
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0,4
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REFERENCES
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V. I. Arnold, Huygens and Barrow, Newton and Hooke, Birkhaeuser, Basel, 1990.
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EXAMPLE
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1/30*x^7+29/756*x^9+1913/75600*x^11+O(x^12).
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CROSSREFS
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Cf. A045688, A096664, A096671, A096712, A096716.
Sequence in context: A166828 A053509 A089507 this_sequence A096722 A160269 A049394
Adjacent sequences: A045686 A045687 A045688 this_sequence A045690 A045691 A045692
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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