id:A112757 - OEIS Search Results

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Greatest common divisors of consecutive 5-smooth numbers.

+0
3

1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 2, 2, 4, 1, 1, 3, 2, 4, 4, 5, 3, 2, 2, 6, 4, 8, 3, 5, 1, 9, 6, 4, 4, 12, 5, 1, 1, 9, 6, 10, 2, 18, 12, 8, 8, 9, 15, 3, 1, 2, 2, 18, 12, 20, 4, 36, 15, 3, 16, 5, 27, 18, 30, 6, 2, 4, 4, 36, 24, 25, 5, 8, 27, 45, 9, 3, 6, 32, 10, 54, 36, 60, 12, 4, 8, 8, 45, 9, 48, 15, 5 (list; graph; listen)

	OFFSET	`1,6`
	COMMENT	`a(n) = GCD(A051037(n),A051037(n+1)).`
	CROSSREFS	`Cf. A112752.` `Sequence in context: A048207 A105810 A063726 this_sequence A118492 A079246 A070990` `Adjacent sequences: A112754 A112755 A112756 this_sequence A112758 A112759 A112760`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Sep 18 2005`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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