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A107391 Expansion of sin(x)^2 * sinh(x)^2. 0
24, -896, 67584, -4161536, 268959744, -17171480576, 1099645845504, -70366596694016, 4503633987108864, -288229826395897856, 18446752869802573824, -1180591479979922948096, 75557865977714137104384 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

(1/4)(-64)^n - (1/2)16^n. G.f. (24+256x)/[(1-16x)(1+64x)].

CROSSREFS

Sequence in context: A184281 A109575 A160111 * A006147 A061236 A001784

Adjacent sequences:  A107388 A107389 A107390 * A107392 A107393 A107394

KEYWORD

sign

AUTHOR

Ralf Stephan (ralf(AT)ark.in-berlin.de), May 25 2005

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.