id:A079083 - OEIS Search Results

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Smallest odd prime factor of (prime(n)+1)*(prime(n+1)+1)/4.

+0
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 19, 3, 3, 3, 3, 3, 3, 17, 3, 3, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 19, 41, 3, 3, 3, 3, 3, 3, 3, 3, 5, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 17, 3, 3, 3, 3, 3, 3, 3, 3, 13, 3, 3, 3, 3, 3, 11, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 131, 137 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)=A078701(A079079(n)).`
	CROSSREFS	`Cf. A079084.` `Sequence in context: A053444 A130635 A135717 this_sequence A032568 A053388 A091786` `Adjacent sequences: A079080 A079081 A079082 this_sequence A079084 A079085 A079086`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 22 2002`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research