id:A116697 - OEIS Search Results

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a(n) = -a(n-1)-a(n-3)+a(n-4).

+0
3

1, 1, -2, 2, -2, 5, -9, 13, -20, 34, -56, 89, -143, 233, -378, 610, -986, 1597, -2585, 4181, -6764, 10946, -17712, 28657, -46367, 75025, -121394, 196418, -317810, 514229, -832041, 1346269, -2178308, 3524578, -5702888 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(2n+1) = F(2n+1) = A001519(n).`
	FORMULA	`G.f. -(1+2x-x^2+x^3)/((1+x^2)(x^2-x-1))`
	CROSSREFS	`Cf. A006498, A115008, A116698, A116699.` `Sequence in context: A039886 A109523 A008295 this_sequence A014244 A059814 A079443` `Adjacent sequences: A116694 A116695 A116696 this_sequence A116698 A116699 A116700`
	KEYWORD	`easy,nice,sign`
	AUTHOR	`Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Feb 23 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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