id:A064324 - OEIS Search Results

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a(n)=a(n-1)+floor[a(n-2)/2] with a(0)=1 and a(1)=2.

+0
4

1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 22, 30, 41, 56, 76, 104, 142, 194, 265, 362, 494, 675, 922, 1259, 1720, 2349, 3209, 4383, 5987, 8178, 11171, 15260, 20845, 28475, 38897, 53134, 72582, 99149, 135440, 185014, 252734, 345241, 471608, 644228, 880032 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) =A064324(n)+1. a(n)/a(n-1) approaches (1+sqrt(3))/2=1.3660254... for large n.`
	EXAMPLE	`a(5)=a(4)+floor[a(3)/2]=4+floor[3/2]=5.`
	CROSSREFS	`Adjacent sequences: A064321 A064322 A064323 this_sequence A064325 A064326 A064327` `Sequence in context: A134816 A078027 A072493 this_sequence A032277 A133498 A097600`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Sep 11 2001`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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