id:A107391 - OEIS Search Results

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Expansion of sin(x)^2 * sinh(x)^2.

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24, -896, 67584, -4161536, 268959744, -17171480576, 1099645845504, -70366596694016, 4503633987108864, -288229826395897856, 18446752869802573824, -1180591479979922948096, 75557865977714137104384 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`(1/4)(-64)^n - (1/2)16^n. G.f. (24+256x)/[(1-16x)(1+64x)].`
	CROSSREFS	`Sequence in context: A027411 A109575 A160111 this_sequence A006147 A061236 A001784` `Adjacent sequences: A107388 A107389 A107390 this_sequence A107392 A107393 A107394`
	KEYWORD	`sign`
	AUTHOR	`Ralf Stephan (ralf(AT)ark.in-berlin.de), May 25 2005`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research