id:A131193 - OEIS Search Results

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Period 6: repeat 0, 1, -3, 3, -1, 0.

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0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0, 0, 1, -3, 3, -1, 0 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=(1/6){-[(n+1) mod 6]+4[(n+2) mod 6]-6[(n+3) mod 6]+4[(n+4) mod 6]-[(n+5) mod 6]}, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Oct 24 2007` `G.f.: (x-1)^2*x/(x+1)/(x^2-x+1)/(x^2+x+1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 14 2007`
	CROSSREFS	`Sequence in context: A123254 A119969 A051343 this_sequence A130632 A114795 A135009` `Adjacent sequences: A131190 A131191 A131192 this_sequence A131194 A131195 A131196`
	KEYWORD	`sign,easy`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Sep 26 2007`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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