id:A030065 - OEIS Search Results

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a(4n)=n, a(4n+2)=a(4n)+a(4n+4), a(2n+1)=a(2n)+a(2n+2).

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0, 1, 1, 2, 1, 4, 3, 5, 2, 7, 5, 8, 3, 10, 7, 11, 4, 13, 9, 14, 5, 16, 11, 17, 6, 19, 13, 20, 7, 22, 15, 23, 8, 25, 17, 26, 9, 28, 19, 29, 10, 31, 21, 32, 11, 34, 23, 35, 12, 37, 25, 38, 13, 40, 27, 41, 14, 43, 29, 44, 15, 46, 31, 47, 16, 49, 33, 50, 17, 52, 35, 53, 18, 55, 37, 56, 19, 58 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`a(n)=2a(n-4)-a(n-8).`
	CROSSREFS	`Sequence in context: A071046 A141210 A107640 this_sequence A055176 A118267 A075348` `Adjacent sequences: A030062 A030063 A030064 this_sequence A030066 A030067 A030068`
	KEYWORD	`nonn,easy`
	AUTHOR	`J. Carl Bellinger (carlb(AT)ctron.com)`
	EXTENSIONS	`Shorter description and more terms from David W. Wilson (davidwwilson(AT)comcast.net).`

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

AT&T Labs Research