id:A009805 - OEIS Search Results

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Expansion of sin(tan(x)*sin(x))/2.

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1, -124, 262096, -2681078464, 83993259325696, -6291889632188161024, 963296773204704677810176, -270352239123704851078462357504, 128399592149905444543967414059073536 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`Tanh[ Sinh[ x ]Sin[ x ] ]/2 ( [ x^(4n+2) ] *)`
	CROSSREFS	`Cf. A023702.` `Sequence in context: A024017 A035816 A097842 this_sequence A005080 A013308 A100579` `Adjacent sequences: A009802 A009803 A009804 this_sequence A009806 A009807 A009808`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs by Olivier Gerard, Mar 15 1997.`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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