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#26 by Harvey P. Dale at Wed Feb 19 13:39:23 EST 2020
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#25 by Harvey P. Dale at Wed Feb 19 13:39:20 EST 2020
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| MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[Sin[ [Sin[ [x]^2] , {x, 0, nn}], x ]^] Range[ 0, nn]!, {1, -1, 2 ] (* Even}]] (* _Harvey P. Dale_, Feb 19 Part2020 *)
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| EXTENSIONS
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Prior Mathematica program replaced by Harvey P. Dale, Feb 19 2020
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| STATUS
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approved
editing
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#24 by N. J. A. Sloane at Sun Apr 02 21:20:17 EDT 2017
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#23 by N. J. A. Sloane at Sun Apr 02 21:20:13 EDT 2017
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| NAME
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Expansion of e.g.f. sin(sin(x)*sin(x)) = 2/2!*x^2 - 8/4!*x^4 - 88/6!*x^6 + 6592/8!*x)), even powers only.^8 - ...
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| EXAMPLE
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2/2!*x^2 - 8/4!*x^4 - 88/6!*x^6 + 6592/8!*x^8 - ...
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| EXTENSIONS
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Name edited by Jon E. Schoenfield, Apr 02 2017
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| STATUS
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approved
editing
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#22 by N. J. A. Sloane at Sun Apr 02 21:00:44 EDT 2017
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#21 by Jon E. Schoenfield at Sun Apr 02 17:51:55 EDT 2017
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#20 by Jon E. Schoenfield at Sun Apr 02 17:51:36 EDT 2017
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| NAME
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sin(sin(x)*sin(x)) = 2/2!*x^2 - 8/4!*x^4 - 88/6!*x^6 + 6592/8!*x^8 - ...
Expansion of e.g.f. sin(sin(x)*sin(x)), even powers only.
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| EXAMPLE
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2/2!*x^2 - 8/4!*x^4 - 88/6!*x^6 + 6592/8!*x^8 - ...
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| EXTENSIONS
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Name edited by Jon E. Schoenfield, Apr 02 2017
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| STATUS
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approved
editing
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Discussion
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| Sun Apr 02
| 17:51
| Jon E. Schoenfield: Okay?
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#19 by N. J. A. Sloane at Sun Apr 02 01:39:49 EDT 2017
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#18 by Wesley Ivan Hurt at Sat Apr 01 20:48:04 EDT 2017
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#17 by Jon E. Schoenfield at Sat Apr 01 15:42:32 EDT 2017
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