id:A156550 - OEIS Search Results

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5*(-1)^n*A078008(n).

+0
1

5, 0, 10, -10, 30, -50, 110, -210, 430, -850, 1710, -3410, 6830, -13650, 27310, -54610, 109230, -218450, 436910, -873810, 1747630, -3495250, 6990510, -13981010, 27962030, -55924050, 111848110, -223696210, 447392430, -894784850, 1789569710, -3579139410 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`a(n) = A140966(n)+A140966(n+2).` `a(n) = 3A140966(n)-A140966(n+1). a(n+1)=10(-1)^nA001045(n).` `G.f.: 5(1+x)/(1+x-2*x^2). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 23 2009`
	CROSSREFS	`Sequence in context: A101115 A010481 A022898 this_sequence A088307 A007392 A052401` `Adjacent sequences: A156547 A156548 A156549 this_sequence A156551 A156552 A156553`
	KEYWORD	`sign,easy,less`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Feb 09 2009`
	EXTENSIONS	`Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl) Feb 23 2009`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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