id:A064651 - OEIS Search Results

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

+0
2

0, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 15, 20, 25, 33, 42, 54, 69, 89, 114, 146, 187, 240, 307, 394, 504, 646, 827, 1060, 1357, 1739, 2227, 2853, 3654, 4680, 5994, 7677, 9833, 12594, 16130, 20659, 26460, 33889, 43405, 55592, 71201, 91193, 116798, 149592 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(n) =A064650(n)+1. a(n)/a(n-1) tends to (1+sqrt(17))/4=1.2807764...`
	CROSSREFS	`Cf. A064324, A064325.` `Sequence in context: A129528 A052336 A061287 this_sequence A094991 A117298 A018052` `Adjacent sequences: A064648 A064649 A064650 this_sequence A064652 A064653 A064654`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Oct 04 2001`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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