A074039 - OEIS

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A074039

If (n, n+2) is the k-th twin prime pair then k else 0.

0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,5`
	COMMENTS	`A001359(a(n)) = n, A006512(a(n)) = n+2.`
	LINKS	`Table of n, a(n) for n=1..99.`
	CROSSREFS	`Cf. A074038, A049084.` `Sequence in context: A133827 A176192 A028633 * A047764 A022883 A028833` `Adjacent sequences: A074036 A074037 A074038 * A074040 A074041 A074042`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller, Aug 13 2002`
	STATUS	`approved`

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Last modified May 18 14:49 EDT 2013. Contains 225422 sequences.