id:A137505 - OEIS Search Results

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Inverse binomial transform of A007910.

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1, 1, 0, 2, 0, 0, 4, -4, 4, 4, -12, 20, -12, -12, 52, -76, 52, 52, -204, 308, -204, -204, 820, -1228, 820, 820, -3276, 4916, -3276, -3276, 13108, -19660, 13108, 13108, -52428, 78644, -52428, -52428, 209716, -314572, 209716, 209716, -838860, 1258292, -838860, -838860, 3355444, -5033164, 3355444 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(n)=-a(n-1)+2a(n-3).` `a(n)= 4/5+(1/10+1/5I)(-1-I)^n+(1/10-1/5I)(-1+I)^n, with n>=0 and I=sqrt(-1) - Paolo P. Lava (ppl(AT)spl.at), Jun 03 2008` `O.g.f.: (1+x)^2/((1-x)(1+2x+2x^2)). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 12 2008`
	CROSSREFS	`Sequence in context: A072070 A137828 A137830 this_sequence A107498 A094295 A085969` `Adjacent sequences: A137502 A137503 A137504 this_sequence A137506 A137507 A137508`
	KEYWORD	`sign`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Apr 23 2008`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 12 2008`

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Last modified December 3 01:16 EST 2008. Contains 151161 sequences.

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