id:A079719 - OEIS Search Results

Search: id:A079719

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a(n) = n + floor[sum_k{k<n}a(k)/2] with a(0)=0.

+0
2

0, 1, 2, 4, 7, 12, 19, 29, 45, 68, 103, 156, 235, 353, 531, 797, 1197, 1796, 2695, 4044, 6067, 9101, 13653, 20480, 30721, 46083, 69125, 103689, 155534, 233302, 349954, 524932, 787399, 1181100, 1771651, 2657477, 3986217, 5979326, 8968990, 13453486 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n)=A073941(n+4)-2 (and appears to be A005428(n+1)) =round[1.82505431574536323...*1.5^n - 2]`
	EXAMPLE	`a(4) = 4+floor[(0+1+2+4)/2] = 4+floor[7/2] = 4+3 = 7`
	CROSSREFS	`Sequence in context: A002622 A035301 A035297 this_sequence A036439 A035298 A000070` `Adjacent sequences: A079716 A079717 A079718 this_sequence A079720 A079721 A079722`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Feb 17 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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