id:A060901 - OEIS Search Results

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Exact power of 3 that divides the n-th Fibonacci number (sequence A000045).

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1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 9, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 9, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 27, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 9, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 9, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 27, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1, 9, 1, 1, 1, 3, 1, 1, 1, 3, 1, 1, 1 (list; graph; listen)

	OFFSET	`1,4`
	FORMULA	`If n is not divisible by 4 then a(n) = 1, if n = 4 * 3^k * m where m is not divisible by 3 then a(n) = 3^(k+1)`
	EXAMPLE	`a(12) = 9 because the 12-th Fibonacci number is 144 and 144 = 9*16`
	CROSSREFS	`A000045, A060865.` `Sequence in context: A093148 A069292 A091842 this_sequence A087612 A155828 A051997` `Adjacent sequences: A060898 A060899 A060900 this_sequence A060902 A060903 A060904`
	KEYWORD	`nonn,easy`
	AUTHOR	`Ahmed Fares (ahmedfares(AT)my-deja.com), May 05 2001`
	EXTENSIONS	`More terms from Larry Reeves (larryr(AT)acm.org), May 07 2001`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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