id:A077927 - OEIS Search Results

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Expansion of (1-x)^(-1)/(1+2*x+2*x^3).

+0
1

1, -1, 3, -7, 17, -39, 93, -219, 517, -1219, 2877, -6787, 16013, -37779, 89133, -210291, 496141, -1170547, 2761677, -6515635, 15372365, -36268083, 85567437, -201879603, 476295373, -1123725619, 2651210445, -6255011635, 14757474509, -34817369907, 82144763085, -193804475187 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n) = -a(n-1) + 2 a(n-2) - 2 a(n-3) + 2 a(n-4) - Nour-Eddine Fahssi (fahssin(AT)yahoo.fr), Mar 29 2008`
	CROSSREFS	`Sequence in context: A003478 A119587 A127984 this_sequence A005197 A106472 A036885` `Adjacent sequences: A077924 A077925 A077926 this_sequence A077928 A077929 A077930`
	KEYWORD	`sign`
	AUTHOR	`njas, Nov 17 2002`

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

AT&T Labs Research