id:A058263 - OEIS Search Results

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GCD of p-1 and q-1 where p and q are consecutive primes.

+0
8

1, 2, 2, 2, 2, 4, 2, 2, 2, 2, 6, 4, 2, 2, 2, 2, 2, 6, 2, 2, 6, 2, 2, 8, 4, 2, 2, 2, 4, 14, 2, 2, 2, 2, 2, 6, 6, 2, 2, 2, 2, 10, 2, 4, 2, 6, 6, 2, 2, 4, 2, 2, 10, 2, 2, 2, 2, 6, 4, 2, 2, 2, 2, 2, 4, 2, 6, 2, 2, 4, 2, 2, 6, 6, 2, 2, 4, 4, 8, 2, 2, 10, 2, 6, 2, 2, 8, 4, 2, 2, 2, 2, 2, 2, 2, 2, 4, 2, 18, 6, 2, 2 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n)=GCD[A006093(n+1), A006093(n)]`
	EXAMPLE	`GCD[97-1,89-1]=GCD[96,88]=8=a(24)`
	CROSSREFS	`A006093.` `Sequence in context: A109810 A122066 A053238 this_sequence A048669 A158522 A034444` `Adjacent sequences: A058260 A058261 A058262 this_sequence A058264 A058265 A058266`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Dec 06 2000`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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