id:A078069 - OEIS Search Results

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Expansion of (1-x)/(1+2*x+2*x^2).

+0
3

1, -3, 4, -2, -4, 12, -16, 8, 16, -48, 64, -32, -64, 192, -256, 128, 256, -768, 1024, -512, -1024, 3072, -4096, 2048, 4096, -12288, 16384, -8192, -16384, 49152, -65536, 32768, 65536, -196608, 262144, -131072, -262144, 786432, -1048576, 524288, 1048576, -3145728, 4194304, -2097152, -4194304 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`Index entries for sequences related to linear recurrences with constant coefficients` `Tanya Khovanova, Recursive Sequences`
	FORMULA	`a(n)=(-2)*(a(n-1)+a(n-2)), n>1 ; a(0)=1, a(1)=-3 . [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 19 2008]`
	CROSSREFS	`Cf. A090131.` `Sequence in context: A084511 A084521 A021296 this_sequence A090131 A152833 A139525` `Adjacent sequences: A078066 A078067 A078068 this_sequence A078070 A078071 A078072`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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