id:A024264 - OEIS Search Results

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

+0
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0, 1, -4, 136, -6784, 524416, -64036864, 10501374976, -2283962220544, 634741960278016, -218778649767706624, 91736006502034702336, -45959204407743090786304, 27112425203442398670094336 (list; graph; listen)

	OFFSET	`0,3`
	MATHEMATICA	`Tan[ Sin[ x ]^2 ]/2 (* Even Part *)`
	CROSSREFS	`A009675.` `Adjacent sequences: A024261 A024262 A024263 this_sequence A024265 A024266 A024267` `Sequence in context: A102986 A012160 A012197 this_sequence A012052 A054052 A012070`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs 03/97.`

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.

AT&T Labs Research