id:A086170 - OEIS Search Results

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a(1)=1; a(n)=a(n-1)+1 if n is in the sequence; a(n)=a(n-1)+2 if n and (n-1) are not in the sequence; a(n)=a(n-1)+3 if n is not in the sequence but (n-1) is in the sequence.

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1, 4, 6, 7, 10, 11, 12, 15, 17, 18, 19, 20, 23, 25, 26, 29, 30, 31, 32, 33, 36, 38, 39, 42, 43, 44, 47, 49, 50, 51, 52, 53, 54, 57, 59, 60, 63, 64, 65, 68, 70, 71, 72, 73, 76, 78, 79, 82, 83, 84, 85, 86, 87, 88, 91, 93, 94, 97, 98, 99, 102, 104, 105, 106, 107, 110, 112, 113 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=phi*n +O(1) where phi=(1+sqrt(5))/2`
	CROSSREFS	`Sequence in context: A140468 A010418 A087790 this_sequence A123088 A133483 A026147` `Adjacent sequences: A086167 A086168 A086169 this_sequence A086171 A086172 A086173`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 13 2003`
	EXTENSIONS	`Corrected by T. D. Noe (noe(AT)sspectra.com), Oct 25 2006`

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

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