id:A055389 - OEIS Search Results

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a(0)=1, then twice the Fibonacci sequence.

+0
8

1, 2, 2, 4, 6, 10, 16, 26, 42, 68, 110, 178, 288, 466, 754, 1220, 1974, 3194, 5168, 8362, 13530, 21892, 35422, 57314, 92736, 150050, 242786, 392836, 635622, 1028458, 1664080, 2692538, 4356618, 7049156, 11405774, 18454930, 29860704, 48315634 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`G.f.: (1+x-x^2)/(1-x-x^2)`
	CROSSREFS	`Essentially the same as A006355.` `Sequence in context: A034410 A050194 A006355 this_sequence A163733 A084202 A053637` `Adjacent sequences: A055386 A055387 A055388 this_sequence A055390 A055391 A055392`
	KEYWORD	`easy,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 05 2000`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Jul 07 2000`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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